Energy Conservation Program: Energy Conservation Standards for Small Electric Motors, 24146-24172 [2020-08319]
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Federal Register / Vol. 85, No. 84 / Thursday, April 30, 2020 / Proposed Rules
DEPARTMENT OF ENERGY
10 CFR Part 431
[EERE–2019–BT–STD–0008]
RIN 1904–AD29
Energy Conservation Program: Energy
Conservation Standards for Small
Electric Motors
Office of Energy Efficiency and
Renewable Energy, Department of
Energy.
ACTION: Notification of proposed
determination and request for comment.
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AGENCY:
SUMMARY: The Energy Policy and
Conservation Act of 1975, as amended,
prescribes energy conservation
standards for various consumer
products and certain commercial and
industrial equipment, including small
electric motors. EPCA also requires the
Secretary of Energy to periodically
determine whether more-stringent,
amended standards would be
technologically feasible and cost
effective, and would result in significant
conservation of energy. In this
document, DOE has tentatively
determined that more stringent small
electric motors standards would not be
cost effective, and, thus, is not
proposing to amend its energy
conservation standards for this
equipment. DOE requests comment on
this proposed determination and
associated analyses and results.
DATES: DOE will accept comments, data,
and information regarding this
notification of proposed determination
before, but no later than June 29, 2020.
See section VII, ‘‘Public Participation,’’
for details.
ADDRESSES: Interested persons are
encouraged to submit comments using
the Federal eRulemaking Portal at
https://www.regulations.gov. Follow the
instructions for submitting comments.
Alternatively, interested persons may
submit comments, identified by docket
number EERE–2019–BT–STD–0008, by
any of the following methods:
(1) Federal eRulemaking Portal:
https://www.regulations.gov. Follow the
instructions for submitting comments.
(2) Email:
SmallElecMotors2019STD0008@
ee.doe.gov. Include the docket number
EERE–2019–BT–STD–0008 in the
subject line of the message.
(3) Postal Mail: Appliance and
Equipment Standards Program, U.S.
Department of Energy, Building
Technologies Office, Mailstop EE–5B,
1000 Independence Avenue SW.,
Washington, DC, 20585–0121.
Telephone: (202) 287–1445. If possible,
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please submit all items on a compact
disc (‘‘CD’’), in which case it is not
necessary to include printed copies.
(4) Hand Delivery/Courier: Appliance
and Equipment Standards Program, U.S.
Department of Energy, Building
Technologies Office, 950 L’Enfant Plaza
SW, 6th Floor, Washington, DC, 20024.
Telephone: (202) 586–6636. If possible,
please submit all items on a CD, in
which case it is not necessary to include
printed copies.
No telefacsimilies (‘‘faxes’’) will be
accepted. For detailed instructions on
submitting comments and additional
information on the rulemaking process,
see section VII of this document.
Docket: The docket for this activity,
which includes Federal Register
notices, comments, and other
supporting documents/materials, is
available for review at https://
www.regulations.gov. All documents in
the docket are listed in the https://
www.regulations.gov index. However,
not all documents listed in the index
may be publicly available, such as
information that is exempt from public
disclosure.
The docket web page can be found at:
https://www.regulations.gov/docket?
D=EERE-2019-BT-STD-0008. The docket
web page contains instructions on how
to access all documents, including
public comments, in the docket. See
section VII for information on how to
submit comments through https://
www.regulations.gov.
Mr.
Jeremy Dommu, U.S. Department of
Energy, Office of Energy Efficiency and
Renewable Energy, Building
Technologies Office, EE–5B, 1000
Independence Avenue SW.,
Washington, DC, 20585–0121. Email:
ApplianceStandardsQuestions@
ee.doe.gov.
Mr. Michael Kido, U.S. Department of
Energy, Office of the General Counsel,
GC–33, 1000 Independence Avenue
SW., Washington, DC, 20585–0121.
Telephone: (202) 586–8145. Email:
Michael.Kido@hq.doe.gov.
For further information on how to
review the docket, contact the
Appliance and Equipment Standards
Program staff at (202) 287–1445 or by
email: ApplianceStandardsQuestions@
ee.doe.gov.
FOR FURTHER INFORMATION CONTACT:
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Synopsis of the Proposed Determination
II. Introduction
A. Authority and Background
1. Current Standards
2. History of Standards Rulemakings for
Small Electric Motors
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III. General Discussion
A. Scope of Coverage and Equipment
Classes
B. Test Procedure
C. Technological Feasibility
1. General
2. Maximum Technologically Feasible
Levels
D. Energy Savings
E. Cost Effectiveness
IV. Methodology and Discussion of Related
Comments
A. Market and Technology Assessment
1. Scope of Coverage
2. Equipment Classes
3. Technology Options for Efficiency
Improvement
B. Screening Analysis
C. Engineering Analysis
1. Summary of Significant Data Sources
2. Representative Equipment Classes
3. Engineering Analysis Methodology
4. Cost
5. Scaling Relationships
D. Markups Analysis
E. Energy Use Analysis
1. Consumer Sample
2. Motor Input Power
3. Annual Operating Hours
F. Life-Cycle Cost and Payback Period
Analysis
1. Equipment Cost
2. Installation Cost
3. Annual Energy Consumption
4. Energy Prices
5. Maintenance and Repair Costs
6. Motor Lifetime
7. Discount Rates
8. Efficiency Distribution in the No-NewStandards Case
9. Payback Period Analysis
G. Other Comments Received
V. Analytical Results and Conclusions
A. Energy Savings
B. Cost Effectiveness
C. Proposed Determination
VI. Procedural Issues and Regulatory Review
A. Review Under Executive Orders 12866
B. Review Under Executive Orders 13771
and 13777
C. Review Under the Regulatory Flexibility
Act
D. Review Under the Paperwork Reduction
Act
E. Review Under the National
Environmental Policy Act of 1969
F. Review Under Executive Order 13132
G. Review Under Executive Order 12988
H. Review Under the Unfunded Mandates
Reform Act of 1995
I. Review Under the Treasury and General
Government Appropriations Act, 1999
J. Review Under Executive Order 12630
K. Review Under the Treasury and General
Government Appropriations Act, 2001
L. Review Under Executive Order 13211
M. Review Under the Information Quality
Bulletin for Peer Review
VII. Public Participation
A. Submission of Comments
B. Issues on Which DOE Seeks Comment
VIII. Approval of the Office of the Secretary
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I. Synopsis of the Proposed
Determination
Title III, Part C 1 of the Energy Policy
and Conservation Act, as amended
(‘‘EPCA’’),2 established the Energy
Conservation Program for Certain
Industrial Equipment, (42 U.S.C. 6311–
6317), which includes small electric
motors, the subject of this notification of
proposed determination (‘‘NOPD’’).
DOE is issuing this NOPD pursuant to
EPCA’s requirement that not later than
6 years after issuance of any final rule
establishing or amending a standard,
DOE must publish either a notification
of determination that standards for the
product do not need to be amended, or
a notice of proposed rulemaking
(‘‘NOPR’’) including new proposed
energy conservation standards
(proceeding to a final rule, as
appropriate). (42 U.S.C. 6316(a); 42
U.S.C. 6295(m))
For this proposed determination, DOE
analyzed the small electric motors
currently subject to the standards found
at title 10 of the Code of Federal
Regulations (‘‘CFR’’) part 431. See 10
CFR 431.446. Of these motors, DOE first
analyzed the technological feasibility of
more efficient small electric motors. For
currently available small electric motors
with efficiencies exceeding the levels of
the current energy conservation
standards, DOE preliminarily
determined that more stringent
standards would be technologically
feasible. For these small electric motors,
DOE evaluated whether more stringent
standards would also be cost effective
by conducting preliminary life-cycle
cost (‘‘LCC’’) and payback period
(‘‘PBP’’) analyses.
Based on these analyses, as
summarized in section V of this
document, DOE has preliminarily
determined that more stringent energy
conservation standards would not be
cost effective. Therefore, DOE has
tentatively determined that the current
standards for small electric motors do
not need to be amended.
II. Introduction
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The following section briefly
discusses the statutory authority
underlying this proposed determination,
1 For editorial reasons, upon codification in the
U.S. Code, Part C was re-designated Part A–1.
2 All references to EPCA in this document refer
to the statute as amended through America’s Water
Infrastructure Act of 2018, Public Law 115–270
(October 23, 2018).
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as well as some of the relevant historical
background related to the establishment
of standards for small electric motors.
A. Authority and Background
EPCA authorizes DOE to regulate the
energy efficiency of a number of
consumer products and certain
industrial equipment. Title III, Part C of
EPCA includes the small electric motors
that are the subject of this proposed
determination. (42 U.S.C. 6311(13)(G))
As discussed in the following
paragraphs, EPCA directed DOE to
establish test procedures and prescribe
energy conservation standards for small
electric motors. (42 U.S.C. 6317(b))
The energy conservation program
under EPCA consists essentially of four
parts: (1) Testing, (2) labeling, (3)
Federal energy conservation standards,
and (4) certification and enforcement
procedures. Relevant provisions of the
Act specifically include definitions (42
U.S.C. 6311), energy conservation
standards (42 U.S.C. 6313), test
procedures (42 U.S.C. 6314), labeling
provisions (42 U.S.C. 6315), and the
authority to require information and
reports from manufacturers (42 U.S.C.
6316).
EPCA directed DOE to establish a test
procedure for those small electric
motors for which DOE determined that
energy conservation standards would (1)
be technologically feasible and
economically justified and (2) result in
significant energy savings. (42 U.S.C.
6317(b)(1)) Manufacturers of covered
equipment must use the Federal test
procedures as the basis for: (1)
Certifying to DOE that their equipment
complies with the applicable energy
conservation standards adopted
pursuant to EPCA (42 U.S.C. 6316(a); 42
U.S.C. 6295(s)), and (2) making
representations about the efficiency of
that equipment (42 U.S.C. 6314(d)). The
DOE test procedures for small electric
motors appear at 10 CFR part 431,
subpart X.
EPCA further directed DOE to
prescribe energy conservation standards
for those small electric motors for which
test procedures were established. (42
U.S.C. 6317(b)(2)) Additionally, EPCA
prescribed that any such standards shall
not apply to any small electric motor
which is a component of a covered
product under 42 U.S.C. 6292(a) or
covered equipment under 42 U.S.C.
6311 of EPCA. (42 U.S.C. 6317(b)(3))
Federal energy efficiency requirements
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for covered equipment established
under EPCA generally supersede State
laws and regulations concerning energy
conservation testing, labeling, and
standards. (See 42 U.S.C. 6316(a) and
(b); 42 U.S.C. 6297(a)–(c)).
EPCA requires that, not later than 6
years after the issuance of any final rule
establishing or amending a standard,
DOE evaluate the energy conservation
standards for each type of covered
equipment, including those at issue
here, and publish either a notification of
determination that the standards do not
need to be amended, or a NOPR that
includes new proposed energy
conservation standards (proceeding to a
final rule, as appropriate). (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(1)). EPCA
further provides that, not later than 3
years after the issuance of a final
determination not to amend standards,
DOE must make a new determination
not to amend the standards or issue a
NOPR including new proposed energy
conservation standards. (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(3)(B)) DOE
must make the analysis on which a
determination is based publicly
available and provide an opportunity for
written comment. (42 U.S.C. 6316(a); 42
U.S.C. 6295(m)(2))
In making a determination that the
standards do not need to be amended,
DOE must evaluate under the criteria of
42 U.S.C. 6295(n)(2) whether amended
standards (1) will result in significant
conservation of energy, (2) are
technologically feasible, and (3) are cost
effective as described under 42 U.S.C.
6295(o)(2)(B)(i)(II). (42 U.S.C. 6316(a);
42 U.S.C. 6295(m)(1)(A) and 42 U.S.C.
6295 (n)(2)) Under 42 U.S.C.
6295(o)(2)(B)(i)(II), an evaluation of cost
effectiveness requires DOE to consider
savings in operating costs throughout
the estimated average life of the covered
product in the type (or class) compared
to any increase in the price of, or in the
initial charges for, or maintenance
expenses of, the covered products
which are likely to result from the
imposition of the standard.
DOE is publishing this document in
accordance with its authority under
EPCA, and in satisfaction of its statutory
requirement under EPCA.
1. Current Standards
The current energy conservation
standards for small electric motors are
located in title 10 CFR 431.446, and are
presented in Table II–1 and Table II–2.
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TABLE II–1—FEDERAL ENERGY CONSERVATION STANDARDS FOR POLYPHASE SMALL ELECTRIC MOTORS
Average full load efficiency
Motor horsepower/standard kilowatt equivalent
Open motors (number of poles)
6
0.25/0.18 ......................................................................................................................................
0.33/0.25 ......................................................................................................................................
0.5/0.37 ........................................................................................................................................
0.75/0.55 ......................................................................................................................................
1/0.75 ...........................................................................................................................................
1.5/1.1 ..........................................................................................................................................
2/1.5 .............................................................................................................................................
3/2.2 .............................................................................................................................................
4
67.5
71.4
75.3
81.7
82.5
83.8
N/A
N/A
2
69.5
73.4
78.2
81.1
83.5
86.5
86.5
86.9
65.6
69.5
73.4
76.8
77.0
84.0
85.5
85.5
TABLE II–2—FEDERAL ENERGY CONSERVATION STANDARDS FOR CAPACITOR-START INDUCTION-RUN AND CAPACITORSTART CAPACITOR-RUN SMALL ELECTRIC MOTORS
Average full load efficiency
Motor horsepower/standard kilowatt equivalent
Open motors (number of poles)
6
0.25/0.18 ......................................................................................................................................
0.33/0.25 ......................................................................................................................................
0.5/0.37 ........................................................................................................................................
0.75/0.55 ......................................................................................................................................
1/0.75 ...........................................................................................................................................
1.5/1.1 ..........................................................................................................................................
2/1.5 .............................................................................................................................................
3/2.2 .............................................................................................................................................
2. History of Standards Rulemakings for
Small Electric Motors
In 2006, DOE determined that energy
conservation standards for certain
single-phase, capacitor-start, inductionrun, small electric motors are
technologically feasible and
economically justified, and would result
in significant energy savings. 71 FR
38799 (July 10, 2006). Later, in 2010,
DOE issued a final rule (the ‘‘March
2010 Final Rule’’) establishing energy
conservation standards for small electric
motors manufactured starting on March
9, 2015.3 75 FR 10874 (March 9, 2010).
In April 2019, DOE published a
request for information (‘‘April 2019
ECS RFI’’) to solicit input and data from
interested parties to aid in the
development of the technical analyses
for the determination of whether new
and/or amended standards for small
4
62.2
66.6
76.2
80.2
81.1
N/A
N/A
N/A
2
68.5
72.4
76.2
81.8
82.6
83.8
84.5
N/A
66.6
70.5
72.4
76.2
80.4
81.5
82.9
84.1
electric motors are warranted. 84 FR
14027 (April 9, 2019). The comment
period was re-opened in response to a
request from an interested party, see
NEMA, No. 4 at p. 1, until June 7, 2019.
See 84 FR 25203 (May 31, 2019).
DOE received a number of comments
from interested parties in response to
the April 2019 ECS RFI.4 The
commenters that provided relevant
comments are listed in Table II–3.5
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TABLE II–3—APRIL 2019 ECS RFI WRITTEN COMMENTS
Commenter/organization(s)
Reference in this NOPD
ABB Motors and Mechanical Inc .............................................................
Air-Conditioning, Heating, and Refrigeration Institute (‘‘AHRI’’) and Association of Home Appliance Manufacturers (‘‘AHAM’’).
Appliance Standards Awareness Project (‘‘ASAP’’), Alliance to Save
Energy, American Council for an Energy-Efficient Economy, the
California Energy Commission, the Natural Resources Defense
Council, and Northwest Energy Efficiency Alliance.
Belanger, Zach ........................................................................................
California Investor-Owned Utilities (‘‘CA IOUs’’)—Pacific Gas and
Electric Company, San Diego Gas and Electric, and Southern California Edison.
Kasimos, Anastasia .................................................................................
Lennox International Inc ..........................................................................
Lenze Americas .......................................................................................
ABB ................................................
AHRI and AHAM ...........................
Manufacturer.
Trade Associations.
ASAP, et al. ...................................
Advocacy Groups and State Governmental Agency.
Belanger ........................................
CA IOUs ........................................
Individual.
Utilities.
Kasimos .........................................
Lennox ...........................................
Lenze Americas .............................
Individual.
Manufacturer.
Manufacturer.
3 In a technical correction, DOE revised the
compliance date for energy conservation standards
to March 9, 2015, for each small electric motor
manufactured (alone or as a component of another
piece of non-covered equipment), or March 9, 2017,
in the case of a small electric motor which requires
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listing or certification by a nationally recognized
safety testing laboratory. 75 FR 17036 (April 5,
2010).
4 The comments received in response to the April
2019 ECS RFI are included in the docket for this
action and can be found at https://
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Organization type
www.regulations.gov/docket?D=EERE-2019-BTSTD-0008.
5 DOE received a comment unrelated to small
electric motors (i.e., Sims, No. 2), which was not
addressed.
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TABLE II–3—APRIL 2019 ECS RFI WRITTEN COMMENTS—Continued
Commenter/organization(s)
Reference in this NOPD
National Electrical Manufacturers Association (‘‘NEMA’’) .......................
The Institute for Policy Integrity at New York University (‘‘NYU’’)
School of Law.
Palubin, Erin ............................................................................................
Sierra Club & Earthjustice .......................................................................
NEMA ............................................
NYU ...............................................
Trade Association.
Non-Governmental Organization.
Palubin ...........................................
Sierra Club & Earthjustice .............
Individual.
Advocacy Groups.
DOE also received a number of
comments related to certification,
compliance and enforcement issues, but
these comments fell outside the scope of
this rulemaking and are not addressed
in this document. The remaining
relevant comments and DOE’s responses
are provided in the appropriate sections
of this document.
III. General Discussion
A. Scope of Coverage and Equipment
Classes
This document covers equipment
meeting the definition of ‘‘small electric
motor,’’ as codified in 10 CFR 431.442.
‘‘Small electric motor’’ means a ‘‘NEMA
general purpose alternating current
single-speed induction motor, built in a
two-digit frame number series in
accordance with NEMA Standards
Publication MG1–1987, including IEC
metric equivalent motors.’’ 10 CFR
431.442.6 The scope of coverage for
these motors is discussed in further
detail in section IV.A.1.
When evaluating and establishing
energy conservation standards, DOE
divides covered equipment into
equipment classes by the type of energy
used, or by capacity or other
performance-related features that justify
a different standard. (42 U.S.C. 6316(a);
42 U.S.C. 6295(q)) In determining
whether capacity or another
performance-related feature justifies a
different standard, DOE must consider
such factors as the utility of the feature
to the consumer and other factors DOE
deems appropriate. (Id.) The equipment
classes for this proposed determination
are discussed further in section IV.A.2.
B. Test Procedure
Organization type
small electric motors for which DOE
determined that energy conservation
standards would (1) be technologically
feasible and economically justified and
(2) result in significant energy savings.
(42 U.S.C. 6317(b)(1)) In a final rule
published on July 7, 2009, DOE adopted
test procedures for small electric
motors. 74 FR 32059.
Subsequently, DOE updated the test
procedures for small electric motors on
May 4, 2012 (the ‘‘May 2012 test
procedure final rule’’). 77 FR 26608. The
existing test procedures for small
electric motors incorporate certain
industry standards from the Institute of
Electrical and Electronics Engineers
(‘‘IEEE’’) and Canadian Standards
Association (‘‘CSA’’), as listed in Table
III–1.
As noted, EPCA directed DOE to
establish a test procedure for those
TABLE III–1—INDUSTRY STANDARDS CURRENTLY INCORPORATED BY REFERENCE FOR SMALL ELECTRIC MOTORS
Equipment description
Industry test procedure
Single-phase small electric motors .................................................................................................
Polyphase small electric motors less than or equal to 1 horsepower ............................................
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Polyphase small electric motors greater than 1 horsepower .........................................................
In 2017, DOE solicited the public for
information pertaining to the test
procedures for small electric motors and
electric motors. 82 FR 35468 (July 31,
2017) (the ‘‘July 2017 test procedure
RFI’’). In the July 2017 test procedure
RFI, DOE sought public comments, data,
and information on all aspects of, and
any issues or problems with, the
existing DOE test procedure for small
electric motors, including on any
needed updates or revisions. DOE also
discussed electric motor categories (as
defined at 10 CFR 431.12) that may be
considered in a future DOE test
procedure. 82 FR 35470–35474.
In April 2019, DOE proposed
amending its test procedure for small
electric motors. 84 FR 17004 (April 23,
2019). In that NOPR, DOE proposed
harmonizing its procedure with
industry practice by incorporating a
new industry standard that
manufacturers would be permitted to
use in addition to the three industry
standards currently incorporated by
reference as options for use when
testing small electric motor efficiency.
84 FR 17013–17014. In addition, DOE
proposed to adopt industry provisions
related to the test conditions to ensure
the comparability of test results for
small electric motors. 84 FR 17014–
17018. DOE is currently evaluating the
comments received on these proposals.
IEEE 114–2010.
CSA C747–09.
IEEE 112–2004 Test Method A.
CSA C747–09.
IEEE 112–2004 Test Method B.
CSA C390–10.
C. Technological Feasibility
1. General
In evaluating potential amendments
to energy conservation standards, DOE
conducts a screening analysis based on
information gathered on all current
technology options and prototype
designs that could improve the
efficiency of the product or equipment
at issue. As the first step in such an
analysis, DOE develops a list of
technology options for consideration in
consultation with manufacturers, design
engineers, and other interested parties.
DOE then determines which of those
means for improving efficiency are
technologically feasible. DOE considers
technologies incorporated in
6 The term ‘‘IEC’’ refers to the International
Electrotechnical Commission.
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commercially available equipment or in
working prototypes to be
technologically feasible. See 10 CFR
part 430, subpart C, appendix A, section
4(a)(4)(i).
After DOE has determined that
particular options are technologically
feasible, it further evaluates each
technology option in light of the
following additional screening criteria:
(1) Practicability to manufacture, install,
and service; (2) adverse impacts on
equipment utility or availability; and (3)
adverse impacts on health or safety. See
10 CFR part 430, subpart C, appendix A,
section 4(a)(4)(ii)–(iv).
Additionally, it is DOE policy not to
include in its analysis any proprietary
technology that is a unique pathway to
achieving a certain efficiency level.
Section IV.B of this proposed
determination discusses the results of
the screening analysis for small electric
motors, particularly the designs DOE
considered, those it screened out, and
those that are the basis for the proposed
determination. In this NOPD, based on
its review of the market and comments
received in response to the April 2019
ECS RFI, DOE has tentatively
determined that no significant technical
advancements in induction motor
technology have been made since
publication of the March 2010 Final
Rule.
2. Maximum Technologically Feasible
Levels
When DOE evaluates the potential for
new or amended standards, DOE must
determine the maximum improvement
in energy efficiency or maximum
reduction in energy use that is
technologically feasible for such
equipment. Accordingly, in the
engineering analysis, DOE determined
the maximum technologically feasible
(‘‘max tech’’) improvements in energy
efficiency for small electric motors. DOE
defines a max-tech efficiency level to
represent the theoretical maximum
possible efficiency if all available design
options are incorporated in a model. In
applying these design options, DOE
would only include those that are
compatible with each other such that
when combined, they would represent
the theoretical maximum possible
efficiency. In many cases, the max-tech
efficiency level is not commercially
available because it is not economically
feasible. The max-tech levels that DOE
has determined are described in section
IV.C of this proposed determination.
D. Energy Savings
In determining whether to amend the
current energy conservation standards
for small electric motors, DOE must
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assess whether amended standards will
result in significant conservation of
energy. (42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)(A). See also 42 U.S.C.
6295(n)(2).) For each considered
efficiency level, DOE estimated the
lifetime energy savings for small electric
motors purchased in the expected
compliance year for potential standards.
See section IV.E for more details for the
energy use analysis.
The term ‘‘significant’’ is not defined
in EPCA. DOE notes that the meaning of
this term is currently under
consideration. See 84 FR 3910, 3922
(Feb. 13, 2019). DOE is also considering
whether to apply a two-pronged
threshold approach for determining
whether significant energy savings is
present in a given standards rulemaking
scenario. See id. at 84 FR 3921–3925. In
the present case, when applying the
criteria of 42 U.S.C. 6295(n)(2) to
determine whether to amend the current
standards, DOE analyzed the available
data and has tentatively determined that
amended standards would not be costeffective as required under EPCA. (42
U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A)
and 42 U.S.C. (n)(2)(C)) See also
sections IV.F and V.B (discussing in
greater detail DOE’s analysis of the
available data in reaching this tentative
determination). Based on available data,
DOE’s analysis indicates that the LCC of
a small electric motor would increase
with more stringent standards and the
payback period to recoup the relevant
costs from investing in more stringent
standards would, in most cases, likely
exceed the expected lifetimes of the
different classes of small electric motors
DOE examined in its analysis—pointing
to the inability of potential standards to
satisfy the cost-effectiveness
requirement under EPCA. Consequently,
because DOE’s analysis indicates that
the three mandatory prerequisites that
need to be satisfied to permit DOE to
move forward with a determination to
amend its current standards cannot be
met, DOE did not separately determine
whether the potential energy savings
would be significant for purposes of the
statutory test that applies. See 42 U.S.C.
6295(n)(2) (requiring that amended
standards must result in significant
conservation energy, be technologically
feasible, and be cost-effective as
provided in 42 U.S.C.
6295(o)(2)(B)(i)(II)).7
7 Under 42 U.S.C. 6295(o)(2)(B)(i)(II), DOE must
consider whether ‘‘the savings in operating costs
throughout the estimated average life of the covered
product in the type (or class) compared to any
increase in the price of, or in the initial charges for,
or maintenance expenses of, the covered products
which are likely to result from the imposition of the
standard.’’
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E. Cost Effectiveness
EPCA requires DOE to consider the
cost effectiveness of amended standards
in the context of the savings in
operating costs throughout the
estimated average life of the covered
equipment class compared to any
increase in the price of, or in the initial
charges for, or maintenance expenses of,
the covered equipment that are likely to
result from a standard. (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(1)(A))
In considering cost effectiveness, DOE
conducted LCC and PBP analyses. The
LCC is the sum of the initial price of
equipment (including its installation)
and the operating expense (including
energy, maintenance, and repair
expenditures) discounted over the
lifetime of the equipment. The LCC
analysis requires a variety of inputs,
such as equipment prices, equipment
energy consumption, energy prices,
maintenance and repair costs,
equipment lifetime, and discount rates
appropriate for consumers. To account
for uncertainty and variability in
specific inputs, such as equipment
lifetime and discount rate, DOE uses a
distribution of values, with probabilities
attached to each value.
The PBP is the estimated amount of
time (in years) it takes consumers to
recover the increased purchase cost
(including installation) of more-efficient
equipment through lower operating
costs. DOE calculates the PBP by
dividing the change in purchase cost
due to a more-stringent standard by the
change in annual operating cost for the
year that standards are assumed to take
effect.
For its LCC and PBP analyses, DOE
assumes that consumers would
purchase the covered equipment in the
first year of compliance with any
amended standards. The LCC savings
for the considered efficiency levels are
calculated relative to the case that
reflects projected market trends in the
absence of amended standards. DOE’s
LCC and PBP analysis is discussed in
further detail in section IV.F of this
proposed determination.
DOE’s LCC and PBP analyses indicate
that the LCC would increase with more
stringent standards and that the payback
period to recoup the relevant costs from
investing in more stringent standards
would, in most cases, likely exceed the
expected lifetimes of the different
classes of small electric motors DOE
examined in its analysis.8 Therefore,
8 For polyphase small electric motors, the PBP
exceeded the lifetime of the unit at all ELs
considered. For CSCR small electric motors, the
PBP at EL 1 and EL 2 was comparable to and/or
lower than the lifetime of the unit (PBP of 6.7; 7.0;
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DOE has tentatively determined that
amended standards would not be costeffective as required under EPCA. (42
U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A)
and 42 U.S.C. 6295(n)(2)(C)) See also
sections IV.F and V.B (discussing in
greater detail DOE’s analysis of the
available data in reaching this tentative
determination).
IV. Methodology and Discussion of
Related Comments
This section addresses the analyses
DOE performed for this proposed
determination regarding small electric
motors. Separate subsections address
each component of DOE’s analyses and
responses to related comments.
Lennox commented that DOE should
carefully consider and exercise caution
to ensure that more stringent standards
for small electric motors provide
significant energy savings and are
economically justified. (Lennox, No. 14
at p. 2) An individual commenter stated
that small electric motors energy
conservation standards should be
considered a priority. (Kasimos, No. 9 at
p. 1)
As discussed previously, EPCA
requires that, not later than 6 years after
the issuance of any final rule
establishing or amending a standard,
DOE evaluate the energy conservation
standards for each type of covered
equipment, including those at issue
here, and publish either a notification of
determination that the standards do not
need to be amended, or a NOPR that
includes new proposed energy
conservation standards (proceeding to a
final rule, as appropriate). (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(1)). In
making a determination that the
standards do not need to be amended,
DOE must evaluate whether amended
standards (1) will result in significant
conservation of energy, (2) are
technologically feasible, and (3) are cost
effective as described under 42 U.S.C.
6295(o)(2)(B)(i)(II). (42 U.S.C. 6316(a);
42 U.S.C. 6295(m)(1)(A); 42 U.S.C.
6295(n)(2)) The following discussion
presents DOE’s evaluation and tentative
determination as required under EPCA.
A. Market and Technology Assessment
DOE has conducted a preliminary
market and technology assessment in
support of a proposed determination for
small electric motors. The goal of the
market assessment is to develop a
qualitative and quantitative
characterization of the small electric
motors industry. This assessment
characterizes the market structure based
on publicly available information as
well as data supplied by manufacturers
and other interested parties. The goal of
the technology assessment is to develop
a list of technology options that
manufacturers can use to improve the
efficiency of small electric motors.
For this proposed determination, DOE
evaluated the small electric motors
currently subject to standards at 10 CFR
431.446. The following section reviews
the scope of coverage and the
equipment classes used in the
development of the current energy
conservation standards for small electric
motors and this proposed
determination.
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1. Scope of Coverage
By statute, a ‘‘small electric motor’’ is
‘‘a NEMA general purpose alternatingcurrent single-speed induction motor,
built in a two-digit frame number series
in accordance with NEMA Standards
Publication MG 1–1987.’’ (42 U.S.C.
6311(13)(G)) DOE later clarified by
regulation that this definition also
includes IEC metric equivalent motors.’’
See 10 CFR 431.442. Equipment meeting
this definition are within DOE’s scope
of coverage but not all may be subject
to DOE’s current standards.
DOE’s standards regulate the energy
efficiency of those small electric motors
that fall within three topologies (i.e.,
arrangements of component parts):
Capacitor-start induction-run (‘‘CSIR’’),
capacitor-start capacitor-run (‘‘CSCR’’),
and polyphase motors. See 10 CFR
431.446. EPCA prescribes that standards
for small electric motors do not apply to
any small electric motor which is a
component of a covered product or
covered equipment under EPCA. (42
U.S.C. 6317(b)(3)) DOE’s current energy
conservation standards only apply to
small electric motors manufactured
alone or as a component of another
piece of non-covered equipment. 10
CFR 431.446(a).
Subpart X of 10 CFR part 431 includes
energy conservation standards and test
procedures for the small electric motors
listed in Table IV–1. DOE is not
proposing any changes to the scope of
small electric motors subject to energy
conservation standards (i.e., ‘‘scope of
applicability’’).
TABLE IV–1—SMALL ELECTRIC MOTORS CURRENTLY SUBJECT TO ENERGY CONSERVATION STANDARDS
[Manufactured alone or as a component of another piece of non-covered equipment]
Motor topology
Pole configuration
Motor output power
Single-phase
CSIR ............................................................................
2,4,6
CSCR ..........................................................................
2,4,6
Polyphase ...........................................................................
2,4,6
0.25–3 hp
(0.18–2.2 kW) *
0.25–3 hp
(0.18–2.2 kW)
0.25–3 hp
(0.18–2.2 kW)
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Certain motor categories are not currently subject to standards. These include:
• Polyphase, 6-pole, 2 and 3 hp motors;
• CSCR and CSIR, 6-pole, 1.5, 2, and 3 hp motors;
• CSCR and CSIR, 4-pole, 3 hp motors.
* The values in parentheses are the equivalent metric ratings.
In response to the April 2019 ECS
RFI, DOE received a number of
comments relevant to the scope of
applicability of energy conservation
standards for small electric motors.
Lennox, AHRI and AHAM supported
maintaining the existing standards
scope for small electric motors. (Lennox,
No. 14 at p. 1; AHRI and AHAM, No. 12
at p. 2) AHRI and AHAM also
specifically opposed testing and
regulating special and definite purpose
motors. They argued that regulating
special and definite purpose motors
could: (1) Increase the cost of the motor
5.9; and 6.4 years compared to an average lifetime
of 6.6 years). For all equipment classes and at all
ELs considered, the LCC increased with more
stringent standards. (See results in section V.B and
chapter 8 of the NOPD TSD for more details)
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and of the finished product without
necessarily improving its performance
and (2) significantly increase burden on
original equipment manufacturers
(‘‘OEMs’’) if all manufacturers of
products using special and definite
purpose motors were required to certify
compliance with standards for
component parts. (AHRI and AHAM,
No. 12 at p. 2–3) Lenze Americas added
that the scope of applicability for small
electric motor standards should not
include non-continuous duty motors
and motors that are combined with
high-efficiency gears. (Lenze Americas,
No. 4 at p. 1)
As previously stated in section III.A,
this document pertains only to
equipment meeting the definition of
small electric motor, as codified in 10
CFR 431.442, which includes general
purpose motors, but does not include
special purpose and definite purpose
motors because they do not meet the
definition of general purpose motors.9
In addition, DOE notes that motors with
non-continuous duty rating and integral
gears are not included in the category of
NEMA general purpose single-speed
induction motor 10 and are therefore not
subject to the energy conservation
standards prescribed at 10 CFR 431.446.
Sierra Club & Earthjustice commented
that DOE did not explain why it is not
considering standards for motors other
than currently regulated small electric
motors, despite considering test
procedures for motors that the market
considers ‘‘small’’ in the July 2017 test
procedure RFI. (Sierra Club &
Earthjustice, No. 13 at p. 1) In addition,
ASAP, et al. suggested that DOE
carefully consider broadening the scope
to address a wide range of motors that
the market considers ‘‘small’’. (ASAP, et
al., No. 16 at p. 2) In its filing, the CA
IOUs argued that DOE should consider
establishing standards for additional
categories of motors considered small by
9 See 42 U.S.C. 6311(13)(C) (defining a definite
purpose motor as a motor ‘‘designed in standard
ratings with standard operating characteristics or
standard mechanical construction for use under
service conditions other than usual or for use on a
particular type of application and which cannot be
used in most general purpose application’’) and 42
U.S.C. 6311(13)(D) (defining a special purpose
motor as ‘‘a motor, other than a general purpose
motor or definite purpose motor, which has special
operating characteristics or special mechanical
construction, or both, designed for a particular
application’’).
10 In response to questions from NEMA and
various motor manufacturers, DOE issued a
guidance document that identifies some key design
elements that manufacturers should consider when
determining whether a given individual motor
meets the small electric motor definition and is
subject to the energy conservation standards
promulgated for small electric motors. See https://
www.regulations.gov/document?D=EERE–2017-BTTP-0047-0082.
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customers and the industry, including
special- and definite-purpose motors,
permanent split capacitor motors, and
split phase induction motors. (CA IOUs,
No. 10 at pp. 2–3)
In the July 2017 test procedure RFI,
DOE indicated that it may consider
setting test procedures for electric
motors that are considered ‘‘small’’ by
customers and the electric motors
industry, but that are not currently
subject to the small electric motor test
procedure. 82 FR 35470. DOE specified
that the motors under consideration in
that test procedure RFI may have
similarities to motors that are currently
regulated as small electric motors (such
as horsepower) and may be used in
similar applications, but that despite
these similarities, DOE is still
determining whether these motors
would be regulated as small electric
motor or as electric motors under DOE
regulations. Id. As such, this proposed
determination is based on the current
scope of the small electric motor
definition and not on any hypothetical
expanded scope that DOE may consider
in the future.
As previously noted, the term ‘‘small
electric motor’’ has a specific meaning
under EPCA. See 42 U.S.C. 6311(13)(G)
and 10 CFR 431.442. Special purpose
and definite purpose motors are not
general purpose motors and therefore
are not covered under the statutory or
regulatory definition of ‘‘small electric
motor’’ and are not ‘‘small electric
motors’’ under DOE’s statutory or
regulatory framework.
Further, single-speed induction
motors, as delineated and described in
MG1–1987, fall into five categories:
Split-phase, shaded-pole, capacitor-start
(both CSIR and CSCR), permanent-split
capacitor (‘‘PSC’’), and polyphase. Of
these five motor categories, DOE
determined in the March 2010 Final
Rule that only CSIR, CSCR, and
polyphase motors were able to meet the
relevant performance requirements in
NEMA MG1 and fell within the general
purpose alternating current motor
category, as shown by the listings found
in manufacturers’ catalogs. 75 FR 10882.
As stated previously, DOE is not
proposing any changes to the scope of
small electric motors subject to energy
conservation standards. Therefore, for
this determination, DOE only
considered the currently regulated small
electric motors subject to energy
conservation standards.11
11 Moreover, even if the facts supported the
expansion of the current scope for small electric
motors, DOE notes that it would first need to
consider the potential test methods to apply when
measuring the efficiency of a motor that is not in
the scope of the current DOE test procedure.
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NEMA, AHRI and AHAM, and
Lennox commented that DOE should
apply a finished-product or system level
approach to energy efficiency
regulations. (NEMA, No. 11 at p. 18;
AHRI and AHAM, No. 12 at pp. 2–3;
Lennox, No. 14 at p. 2). NEMA, AHRI,
and AHAM commented that there are
greater energy savings opportunities
when regulating at the finished-product
level compared to component level
efficiency improvements of small
electric motors. (NEMA, No. 11 at p. 3;
AHRI and AHAM, No. 12 at p. 3) While
acknowledging that such considerations
are outside the scope of a small electric
motors rulemaking, NEMA commented
that DOE should focus on system level
efficiency for equipment where
advanced technology motors can be
applied. (NEMA, No. 11 at p. 18) ABB
suggested that regulating systems such
as power pumps, compressors, and
conveyors would provide greater energy
savings than requiring incremental
increases in small electric motor
efficiency. (ABB, No. 15 at p. 1) Lennox
stated that regulating components in
covered products and covered
equipment undermines innovation in
developing more efficient finishedproduct systems, inhibits OEM
flexibility to design better products at
lower prices, and adds significant
burden. (Lennox, No. 15 at p. 2)
EPCA prescribes that energy
conservation standards for small electric
motors do not apply to any small
electric motor that is a component of a
covered product or covered equipment
under EPCA. (42 U.S.C. 6317(b)(3))
Small electric motors can also be
incorporated in non-covered products
and equipment, and in these scenarios,
DOE would be unable to regulate—
without first satisfying the statutory
requirements for setting regulatory
coverage over these non-covered
products and equipment—the final
product/equipment into which these
motors would fit.
The CA IOUs commented that DOE
should consider motors with integrated
controls to capture energy savings from
part-load operation. They noted that the
IEC 61800–9 Power Driven Systems
Standard describes how to classify and
test motors with controls and motors
that are considered variable-speed
systems. (CA IOUs, No. 10 at p. 4) DOE
Nothing DOE has reviewed—or that commenters
have submitted—have suggested that compatibility
exists between motors that fall outside of the
already prescribed small electric motor scope set by
Congress and the definition of small electric motor.
Comments related to the scope of applicability of
the DOE test procedure for small electric motors
were discussed as part of DOE’s test procedure
NOPR. 84 FR 17004, 17009 (April 23, 2019).
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notes that the statutory definition of
small electric motors (42 U.S.C.
6311(13)(G)), which is reflected in the
regulatory definition at 10 CFR 431.442,
is limited to motors that are singlespeed. Consequently, motors with
integrated controls or variable-speed
configurations are beyond the statutory
(and regulatory) definition of small
electric motors.
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2. Equipment Classes
When evaluating and establishing
energy conservation standards, DOE
divides covered equipment into
equipment classes by the type of energy
used, or by capacity or other
performance-related features that justify
a different standard. (42 U.S.C. 6316(a);
42 U.S.C. 6295(q)) In determining
whether capacity or another
performance-related feature justifies a
different standard, DOE must consider
such factors as the utility of the feature
to the consumer and other factors DOE
deems appropriate. (Id.) For the analysis
in this proposed determination, DOE
considered the 62 equipment classes
that it already regulates based on motor
category, horsepower rating, and
number of poles. This section reviews
the motor characteristics used to
delineate equipment classes for small
electric motors under the current energy
conservation standards and this
proposed determination.
The first characteristic used to
establish equipment classes is phase
count. Polyphase and single-phase
equipment classes are used to
differentiate motors based on the
fundamental differences in how the two
types of motors operate. 10 CFR
431.446(a). For a rotor to move, the
stator (i.e., the stationary part of the
motor) must produce a rotating
magnetic field. To operate on singlephase alternating current (‘‘AC’’) power,
the single-phase motor uses an auxiliary
winding (or start winding) with current
and voltage out of phase with the
original (main) winding to produce a net
rotating magnetic field. To operate on
three-phase power, the polyphase motor
uses windings arranged such that when
supplied by three-phase alternating
current, a rotating magnetic field is
produced. In short, three-phase power
in a polyphase motor naturally produces
rotation, whereas a single-phase motor
requires the auxiliary winding to
‘‘engineer’’ the conditions for rotation.
Due to these differences, polyphase
motors are inherently more efficient but
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require use of a three-phase power
source. Based on the differences in
efficiency and consumer utility, DOE
separated equipment classes based on
phase count in the March 2010 Final
Rule. 75 FR 10886. This proposed
determination maintains this approach.
In addition to differentiating
equipment classes by phase count,
equipment classes are differentiated by
the topology of single-phase motors. 10
CFR 431.446(a). DOE identified two
topologies of single-phase motors
meeting the statutory definition of small
electric motors: CSIR and CSCR. CSIR
and CSCR motors both utilize a
capacitor (‘‘start-capacitor’’) and two
windings (‘‘start-winding’’ and ‘‘runwinding’’). The difference between the
two motors occurs when reaching
operating speed; while CSIR motors run
on the run-winding alone with no
capacitor, CSCR motors run using an
additional ‘‘run-capacitor’’ and both
windings. While this additional
capacitor can boost CSCR motor
efficiency to levels higher than those
exhibited by CSIR motor designs, it
usually constitutes dimensional changes
due to the need to mount the runcapacitor externally on the motor
housing. This additional spatial
requirement could potentially limit the
use of CSCR motors in spaceconstrained applications, and would
cause motor topology to directly impact
consumer utility. Given that motor
topology can affect motor performance
and consumer utility, DOE
differentiated single-phase equipment
classes by topology in the March 2010
Final Rule. 75 FR 10886. DOE maintains
this approach in this proposed
determination.
The current energy conservation
standards also differentiate classes
based on the number of poles in a
motor. 10 CFR 431.446(a). The number
of poles in an induction motor
determines the synchronous speed (i.e.,
revolutions per minute). There is an
inverse relationship between the
number of poles and speed: As a motor
design increases from two to eight poles,
the synchronous speed drops from 3,600
to 900 revolutions per minute. The
desired synchronous speed varies by
end use application, making the number
of poles in a motor a factor directly
impacting consumer utility. By
examining the efficiency ratings for 1–
200 horsepower polyphase electric
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24153
motors (10 CFR 431.25),12 motors
meeting the NEMA Premium Motor
standard, and manufacturer catalogs,
DOE observed that full-load efficiency
percentages tend to decrease with the
number of poles. Therefore, DOE
determined that the number of poles has
a direct impact on the motor’s
performance and consumer utility, and
consequently, the number of poles is a
further means of differentiating among
equipment classes. 75 FR 10886. DOE
maintains this approach in this
proposed determination.
Finally, DOE employs motor
horsepower as an equipment class
setting factor under the current energy
conservation standards. 10 CFR
431.446(a). Average full load efficiency
generally correlates with motor
horsepower (e.g., a 3-horsepower motor
is usually more efficient than a 1⁄4horsepower motor). DOE found that
motor efficiency varies with motor
horsepower by evaluating
manufacturers’ catalog data, the
efficiency ratings of the established
small electric motor energy conservation
standards (10 CFR 431.446), and the
efficiency requirements of the NEMA
Premium Motor program. Additionally,
motor horsepower dictates the
maximum load that a motor can drive,
which means that a motor’s rated
horsepower can influence and limit the
end use applications where that motor
can be used. Horsepower is a critical
performance attribute of a small electric
motor, and since horsepower has a
direct relationship with average full
load efficiency and consumer utility,
DOE used this element as a criterion for
distinguishing among equipment classes
in the March 2010 Final Rule. 75 FR
10886. DOE maintains this approach in
this proposed determination.
DOE did not identify any other
performance-related features affecting
consumer utility or efficiency applying
to the motors falling within the scope of
this proposed determination. Table IV–
2 summarizes the structure of the
equipment classes identified for this
proposed determination and as
designated by the current standards at
10 CFR 431.446.
12 While there is no overlap between the scope of
applicability for electric motor standards at 10 CFR
431.25 and small electric motors standards at 10
CFR 431.446, the pole-efficiency relationships
observed in the electric motor standards from 1 to
3 horsepower can be considered when determining
appropriate pole-efficiency relationships for small
electric motors in this horsepower range.
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TABLE IV–2—SUMMARY OF SMALL ELECTRIC MOTOR EQUIPMENT CLASSES
Motor topology
Pole configuration
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Single-phase
CSIR .................................................................................................................................
CSCR ................................................................................................................................
Polyphase ................................................................................................................................
DOE received a number of comments
on the April 2019 ECS RFI regarding
equipment classes. The CA IOUs, Sierra
Club & Earthjustice, and ASAP, et al.
supported merging the CSIR and CSCR
equipment classes and noted that the
market share estimates reported in the
April 2019 ECS RFI 13 indicated that
CSIR motors no longer appear available
in the market. (CA IOUs, No. 10 at p. 3;
Sierra Club & Earthjustice, No. 13 at p.
1; ASAP, et al., No. 16 at p. 4) The
Sierra Club & Earthjustice commented
that the market indicates that the initial
concern regarding differences in
consumer utility for space-constrained
applications with respect to CSIR and
CSCR small electric motors was not
well-founded. (Sierra Club &
Earthjustice, No. 13 at p. 1)
NEMA commented that while the
CSIR class is no longer a significant
equipment class as a result of the March
2010 Final Rule standards, there is no
reason to make changes to the CSIR and
CSCR equipment classes. NEMA
commented that in order for CSIR
motors to meet current efficiency
standards, significant design changes
were made that resulted in an increase
in size and a subsequent reduction in
utility compared to CSCR motors.
(NEMA, No. 11 at p. 4) NEMA stated
that the vast majority of CSIR shipments
have shifted to CSCR designs or to
special and definite purpose motors
except for the lowest horsepower
ratings. It asserted that sales of small
electric motors have decreased as a
result of the standards and that it would
expect to see a similar impact from
amended standards (NEMA, No. 11 at p.
16) NEMA also commented that there
are no new design options for small
electric motors that would add
consumer utility and, consequently, no
need to consider any new equipment
classes. (NEMA, No. 11 at p. 5)
As discussed previously, DOE has
found that single-phase motor topology
(CSIR vs. CSCR) can impact motor
performance and consumer utility.
Currently, DOE does not have
13 Note: The CA IOU comments referenced the
‘‘2017 RFI’’ but points to tables and discussion that
are in the 2019 SEM ECS RFI. DOE is assuming that
the intent was to refer to the April 2019 ECS RFI.
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conclusive evidence indicating that
CSIR small electric motors are no longer
available in the market and the
statements offered by NEMA suggest the
opposite is the case. In the absence of
compelling evidence suggesting
otherwise, DOE is maintaining both
classes because of the differences in
utility that these different classes of
small electric motors offer—i.e.
dimensional differences. Accordingly,
DOE is not proposing to modify the
equipment classes from those that
currently apply under 10 CFR
431.446(a). These equipment classes are
summarized in Table IV–2.
The CA IOUs commented that the
American Standard for Motors and
Generators ANSI/NEMA MG1 (‘‘NEMA
MG–1’’) does not differentiate between
CSIR and CSCR motors, as they are
considered by the motor industry to be
equivalent motor types. The CA IOUs
also commented that DOE should
consider defining these terms. (CA
IOUs, No. 10 at p. 3) ASAP, et al.
commented that it would be helpful to
provide regulatory definitions for the
three topologies covered by the current
regulations. (ASAP, et al., No. 16 at p.
4) NEMA commented that the current
definitions for the three topologies of
small electric motors are sufficient.
(NEMA, No. 11 at p. 3) 14
NEMA MG–1, the industry consensus
standard referenced in the statutory and
regulatory definition of ‘‘small electric
motor,’’ differentiates between the CSIR
and CSCR motor topologies.
Specifically, the definitions listed in
section 1.20.3 of NEMA MG–1 2016
identifies CSIR and CSCR as two of the
three distinct types of capacitor motors
(‘‘capacitor-start, induction-run’’
defined in section 1.20.3.3.1 of NEMA
MG–1 2016; ‘‘permanent-split’’ 15
defined in section 1.20.3.3.2 of NEMA
MG–1 2016; and ‘‘capacitor-start,
capacitor-run’’ defined in section
14 While NEMA did not specify to which
definitions it was referring, DOE understands
NEMA’s comment to be referring to the definitions
in industry standards.
15 Permanent-split capacitor motors do not meet
the performance requirements for general purpose
motors in NEMA MG 1 and fall outside the scope
of the current standards and test procedures for
small electric motors.
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0.25–3
0.25–3
1.20.3.3.3 of NEMA MG–1 2016). Given
the definitions in the industry
consensus standard, the terms
‘‘capacitor-start, induction-run,’’
‘‘permanent-split capacitor,’’ or
‘‘capacitor-start, capacitor-run’’ are well
understood and therefore DOE is not
proposing to provide explicit definitions
of these motor topologies.
3. Technology Options for Efficiency
Improvement
The purpose of the technology
assessment is to develop a preliminary
list of technology options that could
improve the efficiency of small electric
motors. For the motors covered in this
determination, energy efficiency losses
are grouped into four main categories:
I2R losses,16 core losses, friction and
windage losses, and stray load losses.
The technology options considered in
this section are categorized by these four
categories of losses.
The small electric motors evaluated in
this proposed determination are all AC
induction motors. Induction motors
have two core components: a stator and
a rotor. The components work together
to convert electrical energy into
rotational mechanical energy. This is
done by creating a rotating magnetic
field in the stator, which induces a
current flow in the rotor. This current
flow creates an opposing magnetic field
in the rotor, which creates rotational
forces. Because of the orientation of
these fields, the rotor field follows the
stator field. The rotor is connected to a
shaft that also rotates and provides the
mechanical energy output.
Table IV–3 summarizes the
technology options discussed in this
document. Details of each technology
option can be found in chapter 3 of the
technical support document (‘‘TSD’’)
prepared as part of DOE’s evaluation,
which is available in the docket at
https://www.regulations.gov/docket?
D=EERE-2019-BT-STD-0008.
16 I2R losses refer to conductor losses. In AC
circuits, these losses are computed as the square of
the current (‘‘I’’) multiplied by the conductor
resistance (‘‘R’’).
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TABLE IV–3—SUMMARY OF TECHNOLOGY OPTIONS FOR IMPROVING EFFICIENCY
Type of loss to reduce
Technology option applied
I2R Losses ..........................................................
Core Losses ........................................................
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Friction and Windage Losses .............................
The CA IOUs asserted (without
providing any supporting data or
information) that DOE should consider
the efficiency gains from enhanced
motor technologies considered in the
March 2010 Final Rule because the
availability and affordability of these
technologies has increased since
publication of the that final rule. (CA
IOUs, No. 10 at p. 3) In addition, ASAP,
et al. commented that DOE should
evaluate and consider all of the
technology options that DOE previously
analyzed. (ASAP, et al., No. 16 at p. 3)
NEMA commented that no technical
advancements have been made in small
electric motor technology since the last
rulemaking. (NEMA, No. 11 at p. 3)
For this evaluation, DOE considered
each of the technology options analyzed
in the previous rulemaking and
examined any changes to the cost or
availability of these design options since
the publication of the March 2010 Final
Rule. In addition, DOE also researched
whether there were any new
technologies that could improve the
efficiency of small electric motors. DOE
tentatively determined that no
significant technical advancements in
induction motor technology have been
made since publication of the March
2010 Final Rule. Details of the
technology options DOE considered for
this evaluation can be found in Chapter
3 of the NOPD TSD.
NEMA commented that many of the
motor design options that DOE listed in
Table II–5 of the April 2019 ECS RFI are
interdependent with one or more design
options. In other words, the deployment
of one design option sometimes favors
the co-dependent application of another
design option, but there are cases where
deploying certain combinations of
design options can negatively impact
energy consumption. (NEMA, No. 11 at
p. 5) NEMA also commented that many
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Use a copper die-cast rotor cage.
Reduce skew on conductor cage.
Increase cross-sectional area of rotor conductor bars.
Increase end ring size.
Changing gauges of copper wire in stator.
Manipulate stator slot size.
Decrease radial air gap.
Change run-capacitor rating.
Improve grades of electrical steel.
Use thinner steel laminations.
Anneal steel laminations.
Add stack height (i.e., add electrical steel laminations).
Use high-efficiency lamination materials.
Use plastic bonded iron powder.
Use better bearings and lubricant.
Install a more efficient cooling system.
of the design options listed are already
optimized in practice, and there may
not be further room to pursue efficiency
gains with these design options. Id. at 6.
NEMA asserted that some of the design
options listed could negatively impact
utility (e.g., through loss of starting
torque, increased risk of motor failure,
increase in motor size, etc.) or add to
manufacturer production costs. (NEMA,
No. 11 at pp. 11–12) ABB commented
that substituting a copper rotor in a
motor may require a complete redesign,
and could also require significant
investment for development, tooling,
and manufacturing. (ABB, No. 15 at pp.
1–2) In addition, ABB commented that
components in motors cannot be
arbitrarily substituted without
consequences to the performance and
life of motors. Id. at 2.
DOE acknowledges that the
technology options listed in Table II–5
cannot be considered individually as
they are frequently interdependent (i.e.,
methods of reducing electrical losses in
motors are not completely independent
of one another). This means that some
technology options that decrease one
type of loss may cause an increase in a
different type of loss in the motor. Thus,
maximizing the efficiency gains in a
motor design overall requires balancing
out the loss mechanisms. In this
evaluation, as in the previous
rulemaking, DOE has considered the
interactive effects, practical limitations,
and costs of applying each technology
option before making a determination
whether to screen-in the technology
options as design options for the
engineering analysis. Details of the
screened-in design options considered
for each motor design can be found in
Chapter 4 and 5 of the NOPD TSD.
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B. Screening Analysis
DOE uses the following four screening
criteria to determine which technology
options are suitable 17 for further
consideration of new or amended
energy conservation standards:
(1) Technological feasibility.
Technologies that are not incorporated
in commercial products or in working
prototypes will not be considered
further.
(2) Practicability to manufacture,
install, and service. If it is determined
that mass production and reliable
installation and servicing of a
technology in commercial products
could not be achieved on the scale
necessary to serve the relevant market at
the time of the projected compliance
date of the standard, then that
technology will not be considered
further.
(3) Impacts on product utility or
product availability. If it is determined
that a technology would have a
significant adverse impact on the utility
of the product to significant subgroups
of consumers or would result in the
unavailability of any covered product
type with performance characteristics
(including reliability), features, sizes,
capacities, and volumes that are
substantially the same as products
generally available in the United States
at the time, it will not be considered
further.
(4) Adverse impacts on health or
safety. If it is determined that a
technology would have significant
adverse impacts on health or safety, it
will not be considered further.
See 10 CFR part 430, subpart C,
appendix A, 4(a)(4) and 5(b)
In sum, if DOE determines that a
technology, or a combination of
17 DOE refers to the technology options that pass
the screening criteria as ‘‘design options.’’
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technologies, fails to meet one or more
of the above four criteria, it will be
excluded from further consideration in
the engineering analysis. Additionally,
DOE notes that the four screening
criteria do not directly address the
propriety status of technology options.
DOE only considers potential efficiency
levels achieved through the use of
proprietary designs in the engineering
analysis if they are not part of a unique
pathway to achieve that efficiency level
(i.e., if there are other non-proprietary
technologies capable of achieving the
same efficiency level). The reasons for
eliminating any technology are
discussed below.
Table IV–3 provides a summary of all
the technology options DOE considered
for improving small electric motor
efficiency. For a description of how
each of these technology options
improves small electric motor
efficiency, see NOPD TSD chapter 3. For
the proposed determination, DOE
screened out three of these technology
options: Reducing the air gap below
.0125 inches, amorphous metal
laminations, and plastic bonded iron
powder (‘‘PBIP’’).
Reducing the air gap between the
rotor and stator can improve motor
efficiency. For small electric motors, the
air gap is commonly set at 15
thousandths of an inch. Although
reducing this air gap can improve
efficiency, there is some point at which
the air gap is too tight and becomes
impracticable to manufacture. In the
March 2010 Final Rule DOE screened
out air gaps below 12.5 thousandths of
an inch because it would exceed the
threshold for practicability to
manufacture. 75 FR 10887. In response
to the April 2019 ECS RFI, NEMA
commented that DOE should continue
to screen out decreasing the radial air
gap below 12.5 thousandths of an inch.
(NEMA, No. 11 at p. 7)
A reduction in air gaps is
technologically feasible and DOE is
unaware of any adverse impacts on
health or safety associated with
reducing the radial air gap below 12.5
thousandths of an inch. However, this
technology option fails the screening
criterion of being practicable to
manufacture, install, and service. Such
a tight air gap may cause problems in
manufacturing and service, with the
rotor potentially coming into contact
with the stator. This technology option
also fails the screening criterion of
avoiding adverse impacts on consumer
utility and reliability, because the motor
may experience higher failure rates in
service when the manufactured air gaps
are less than 12.5 thousandths of an
inch.
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Using amorphous metals in the rotor
laminations is another potential
technology option to improve the
efficiency of small electric motors.
Amorphous metal is extremely thin, has
high electrical resistivity, and has little
or no magnetic domain definition.
Because of amorphous steel’s high
resistance, it exhibits a reduction in
hysteresis and eddy current losses,
which in turn reduces overall losses in
small electric motors. However,
amorphous steel is a very brittle
material which makes it difficult to
punch into motor laminations.18
Considering the four screening criteria
for this technology option, DOE
screened out amorphous metal
laminations as a means of improving
efficiency. Although amorphous metals
have the potential to improve efficiency,
DOE does not consider this technology
option technologically feasible, because
it has not been incorporated into a
working prototype of a small electric
motor. Furthermore, DOE is uncertain
whether amorphous metals are
practicable to manufacture, install, and
service, because a prototype amorphous
metal-based small electric motor has not
been made and little information is
available on the feasibility of adapting
this technology for manufacturing small
electric motors to reach any conclusions
regarding the practicability of using this
option. DOE is not aware of any adverse
impacts on consumer utility, reliability,
health, or safety associated with
amorphous metal laminations.
Using PBIP to manufacture small
electric motors could cut production
costs while increasing production
output. Although other researchers may
be working on this technology option,
DOE notes that a research team at Lund
University in Sweden published a paper
in 2007 about using PBIP in
manufacturing. This technology option
is based on an iron powder alloy that is
suspended in plastic, and is used in
certain motor applications such as fans,
pumps, and household appliances.19
The compound is then shaped into
motor components using a centrifugal
mold, reducing the number of
manufacturing steps. Researchers claim
that this technology option could cut
losses by as much as 50 percent. The
Lund University study, which is the
most recent research paper to address
the use of PBIP in the production
18 1 S.R. Ning, J. Gao, and Y.G. Wang. Review on
Applications of Low Loss Amorphous Metals in
Motors. 2010. ShanDong University. Weihai, China.
19 Horrdin, H., and E. Olsson. Technology Shifts
in Power Electronics and Electric Motors for Hybrid
Electric Vehicles: A Study of Silicon Carbide and
Iron Powder Materials. 2007. Chalmers University
of Technology. Go¨teborg, Sweden.
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context, indicated that its study team
already produced inductors,
transformers, and induction heating
coils using PBIP, but had not yet
produced a small electric motor. In
addition, it appears that PBIP
technology is aimed at torus, claw-pole,
and transversal flux motors, none of
which fit the regulatory definition of
small electric motors at 10 CFR 431.442.
DOE has not found evidence of any
significant research or technical
advancement in PBIP methodologies
that could be applied to small electric
motors since publication of the March
2010 Final Rule. In response to the
April 2019 ECS RFI, NEMA commented
that DOE should continue to screen out
this technology option for the same
reasons that DOE had previously cited
in its TSD to the March 2010 Final Rule.
(NEMA, No. 11 at p. 7)
Considering the four screening criteria
for this technology option, DOE
screened out PBIP as a means of
improving efficiency. Although PBIP
has the potential to improve efficiency
while reducing manufacturing costs,
DOE does not consider this technology
option technologically feasible because
it has not been incorporated into a
working prototype of a small electric
motor. Also, DOE is uncertain whether
the material has the structural integrity
to form into the necessary shape of a
small electric motor steel frame.
Specifically, properties of PBIP can
differ depending on the processing. If
the metal particles are too closely
compacted and begin to touch, the
material will gain electrical
conductivity, counteracting one of its
most important features of preventing
electric current from developing, which
is critical because this essentially
eliminates losses in the core due to eddy
currents. If the metal particles are not
compacted closely enough, its structural
integrity could be compromised because
the resulting material will be very
porous.
Furthermore, DOE is uncertain
whether PBIP is practicable to
manufacture, install, and service,
because a prototype PBIP small electric
motor has not yet been made and little
information is available on the
feasibility of adapting this option for
manufacturing small electric motors.
However, DOE is not aware at this time
of any adverse impacts on product
utility, product availability, health, or
safety that may arise from the use of
PBIP in small electric motors.
DOE has determined that the
remaining technology options listed in
Table IV–2 are technologically feasible.
The evaluated technologies all have
been used (or are being used) in
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commercially available products or
working prototypes. These technologies
all incorporate materials and
components that are commercially
available in today’s supply markets for
the small electric motors that are the
subject of this document. Therefore,
DOE has screened in these technology
options as design options in the
engineering analysis.
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C. Engineering Analysis
The engineering analysis estimates
the increase in manufacturer selling
price (‘‘MSP’’) associated with
improvements to the average full load
efficiency of small electric motors. This
section presents DOE’s assumptions and
methodology for the engineering
analysis. The output from the
engineering analysis is a price-efficiency
relationship for each equipment class
that describes how MSP changes as
efficiency increases. The engineering
analysis is used as an input to the LCC
and PBP analyses.
DOE typically structures the
engineering analysis using one of three
approaches: (1) Design option, (2)
efficiency level, or (3) reverse
engineering (or cost assessment). The
design option approach involves adding
the estimated cost and associated
efficiency of various efficiencyimproving design changes to the
baseline product to model different
levels of efficiency. The efficiency level
approach uses estimates of costs and
efficiencies of products available on the
market at distinct efficiency levels to
develop the cost-efficiency relationship.
The reverse engineering approach
involves testing products for efficiency
and determining cost from a detailed
bill of materials (‘‘BOM’’) derived from
reverse engineering representative
products. The efficiency ranges from
that of the least-efficient small electric
motor sold today (i.e., the baseline) to
the maximum technologically feasible
efficiency level.
For analysis purposes, this proposed
determination reflects DOE’s adoption
of a design option approach based on
motor modeling conducted in support of
the March 2010 Final Rule. In this
design option approach, DOE considers
efficiency levels corresponding to motor
designs that meet or exceed the
efficiency requirements of the current
energy conservation standards at 10 CFR
431.446. DOE has tentatively
determined that there are no additional
technology options that pass the
screening criteria that would enable the
consideration of any additional
efficiency levels representing higher
efficiency levels than the maximum
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technologically feasible level analyzed
in the March 2010 Final Rule.
1. Summary of Significant Data Sources
DOE utilized two principal data
sources for the engineering analysis: (1)
A database of small electric motor
manufacturer suggested retail price
(‘‘MSRP’’) and performance data based
on the current market, and (2) motor
modeling data, test data, and
performance specifications from the
March 2010 Final Rule. DOE
determined that relying on the data from
the March 2010 Final Rule was
reasonable because a review of the
catalog data and responses to the April
2019 ECS RFI suggested that there were
no significant technological
advancements in the motor industry
that could lead to more efficient or
lower cost motor designs relative to the
motors modeled for the March 2010
Final Rule. Accordingly, in this
determination, DOE has elected to
evaluate the motor designs that were
modeled for the March 2010 Final Rule
analysis. To confirm this approach, DOE
is again requesting comments regarding
this issue.
DOE collected MSRP and
performance data from product
literature and catalogs distributed by
four major motor manufacturers: ABB
(which includes the manufacturer
formerly known as Baldor Electric
Company), Nidec Motor Corporation
(which includes the US Motors brand),
Regal-Beloit Corporation (which
includes the Marathon and Leeson
brands), and WEG Electric Motors
Corporation.20 Based on market
information from the Low-Voltage
Motors World Market Report,21 DOE
estimates that the four major motor
manufacturers noted above comprise the
majority of the U.S. small electric motor
market and are consistent with the
motor brands considered in the March
2010 Final Rule. (Throughout this
document this data will be referred to as
the ‘‘manufacturer catalog data.’’)
20 ABB (Baldor-Reliance): Online Manufacturer
Catalog, accessed January 3, 2019. Available at
https://www.baldor.com/catalog#category=2; Nidec:
Online Manufacturer Catalog, accessed December
26, 2018. Available at ecatalog.motorboss.com/
Catalog/Motors/ALL; Regal (Marathon and Leeson):
Online Manufacturer Catalog, accessed December
27, 2018. Available at https://www.regalbeloit.com/
Products/Faceted-Search?category=Motors&brand=
Leeson,Marathon%20Motors; WEG: Online
Manufacturer Catalog, accessed December 24, 2018.
Available at https://catalog.wegelectric.com/
21 Based on the Low-Voltage Motors, World
Market Report (IHS Markit Report September 2017,
Edition 2017–2018) Table 5.15: Market Share
Estimates for Low-voltage Motors: Americas;
Suppliers ‘share of the Market in 2015 and 2016.
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2. Representative Equipment Classes
Due to the large number of equipment
classes, DOE did not directly analyze all
62 equipment classes of small electric
motors considered under this proposed
determination. Instead, DOE selected
representative classes based on two
factors: (1) The quantity of motor
models available within an equipment
class and (2) the ability to scale to other
equipment classes.
DOE notes that the minimum energy
conservation standards adopted in the
March 2010 Final Rule correspond to
the efficiency level that represented the
maximum technologically feasible
efficiency for CSIR motors. As discussed
previously, DOE was unable to identify
any additional design options that
passed the screening criteria that would
indicate that a motor design meeting a
higher efficiency level is technologically
feasible and commercially viable (see
NOPD TSD chapter 3). In addition, DOE
was unable to identify any CSIR motors
in the manufacturer catalog data that
exhibited efficiency levels exceeding the
current energy conservation standards
for CSIR motors. From this information,
DOE tentatively concluded that more
stringent energy conservation standards
for CSIR motors do not appear to be
technologically feasible. Consequently,
DOE did not include a representative
CSIR equipment class as part of the
engineering analysis.
The minimum energy conservation
standards adopted in the March 2010
Final Rule corresponded to efficiency
levels below the maximum
technologically feasible levels for the
CSCR and polyphase topologies, and
therefore DOE elected to analyze one
representative equipment class for each
of these motor topologies. Equipment
classes in the both the polyphase and
CSCR topologies were directly analyzed
due to the fundamental differences in
their starting and running electrical
characteristics. These differences in
operation have a direct impact on
performance and indicate that
polyphase motors are typically more
efficient than single-phase motors. In
addition, the efficiency relationships
across horsepower and pole
configuration are different between
single-phase and polyphase motors.
DOE did not vary the pole
configuration of the representative
classes it analyzed because analyzing
the same pole configuration provided
the strongest relationship upon which to
base its scaling. See section IV.C.5 for
details on DOE’s scaling methodology.
Keeping as many design characteristics
constant as possible enabled DOE to
more accurately identify how design
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changes affect efficiency across
horsepower ratings. For each motor
topology, DOE directly analyzed the
most common pole-configuration. For
both motor topologies analyzed, 4-pole
motors constitute the largest fraction of
motor models on the market.
When DOE selected its representative
equipment classes, DOE chose the
horsepower ratings that constitute a
high volume of motor models and
approximate the middle of the range of
covered horsepower ratings so that DOE
could develop a reasonable scaling
methodology. DOE notes that the
representative equipment classes for
polyphase and CSCR motors that were
selected for the engineering analysis
align with the representative classes that
were directly analyzed in the March
2010 Final Rule. 75 FR 10874, 10888.
These representative classes are
outlined in Table IV–4.
TABLE IV–4—REPRESENTATIVE EQUIPMENT CLASSES
Motor topology
Pole configuration
Polyphase ................................................................................................................................
Single-phase CSCR .................................................................................................................
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DOE seeks comment on the selection
of representative equipment classes for
CSCR and polyphase motors and the
tentative determination that more
stringent energy conservation standards
for CSIR motors are not technologically
feasible.
See section VII.B for a complete list of
issues on which DOE seeks comments.
3. Engineering Analysis Methodology
DOE relied on a design option
approach to generate incremental MSPs
and establish efficiency levels, in which
the relative costs of achieving increases
in efficiency are determined based on
the cost of various efficiency-improving
design changes to the baseline motor.
For each representative equipment
class, DOE identified a specific motor as
a fundamental design against which it
would apply changes to improve the
motor’s efficiency. Each increase in
efficiency over the baseline level that
DOE analyzed was assigned an
efficiency level (‘‘EL’’) number.
Consistent with its usual analytical
approach, DOE considered the current
minimum energy conservation
standards to establish the baseline
efficiency levels for each representative
equipment class. In response to the
April 2019 ECS RFI, the CA IOUs
supported using the current standards
as the baseline efficiency level. (CA
IOUs, No. 10 at p. 4) In addition, NEMA
commented that the current energy
conservation standards reasonably
approximate the baseline for covered
equipment. (NEMA, No. 11 at p. 7)
As discussed previously, DOE
selected representative equipment
classes that align with the classes
analyzed in the March 2010 Final Rule.
DOE identified specific motor designs
from the March 2010 Final Rule
engineering analysis that exhibit fullload efficiency ratings that are
representative of the minimum energy
conservation standards for small electric
motors. DOE chose these motor designs
as the baseline designs against which
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4
4
1.00
0.75
design options to improve motor
efficiency would be implemented as
part of DOE’s analysis.
For the March 2010 Final Rule
engineering analysis, DOE purchased
and tested motors with the lowest
catalog efficiency rating available in the
market for each representative
equipment class. DOE’s technical expert
tore down each motor to obtain
dimensions, a BOM, and other pertinent
design information. DOE worked with a
subcontractor to reproduce these motor
designs using modeling software and
then applied design options to a
modeled motor that would increase that
motor’s efficiency to develop a series of
motor designs spanning a range of
efficiency levels. For the current
evaluation, DOE continued to base its
analysis on the modeled motor designs.
In light of its catalog review and the
responses received to the April 2019
ECS RFI indicating that there were no
significant technological advancements
in the motor industry that could lead to
more efficient or lower cost motor
designs relative to the motors modeled
for the March 2010 Final Rule.22 Further
information on the development of
modeled motor designs from the March
2010 Final Rule is available in section
5.3 of the NOPD TSD.
NEMA commented that DOE did not
adequately consider comments
regarding OEM design impacts from the
larger motor dimensions that would
result from re-designing motors to be
compliant with the energy conservation
standards adopted in the March 2010
Final Rule. (NEMA, No. 11 at p. 7)
NEMA added that DOE should seek
input from OEMs on the impact of
increased motor size that would be
needed to increase motor efficiency.
(NEMA, No. 11 at p. 17) AHRI and
AHAM commented that more efficient
motors within a particular topology are
likely to be larger and heavier, which
could decrease consumer utility. AHRI
and AHAM stated that replacement
motors must be able to fit inside the
finished product for which they are
destined, and this factor must be
considered when evaluating more
stringent standards. (AHRI and AHAM,
No. 12 at p. 3)
In developing the modeled motor
designs and associated costs, DOE
considered both space-constrained and
non-space-constrained scenarios. DOE
prepared designs of increased efficiency
covering both scenarios for each
representative equipment class. The
design levels prepared for the spaceconstrained scenario included baseline
and intermediate levels, a level for a
design using a copper rotor, and a maxtech level with a design using a copper
rotor and exotic core steel. The highefficiency space-constrained designs
incorporate copper rotors and exotic
core steel in order to meet comparable
levels of efficiency to the high-efficiency
non-space-constrained designs while
meeting the parameters for minimally
increased stack length. The design
levels created for the non-spaceconstrained scenario corresponded to
the same efficiency levels created for the
space-constrained scenario. Further
information on the development of
modeled motor designs is available in
section 5.3 of the March 2010 Final Rule
TSD. In addition to developing different
MSPs for space-constrained and nonspace-constrained scenarios, DOE
developed a modified OEM markup in
support of the March 2010 Final Rule to
account for the costs faced by OEMs
needing to redesign their products to
incorporate small electric motors of
different sizes.23 In this current
evaluation, DOE continues to analyze
increased efficiency in both space-
22 DOE also notes that ASAP, et al. recommended
that DOE conduct an analysis similar to the
modeling analysis completed for the March 2010
Final Rule. (ASAP, et al., No. 16 at p. 4)
23 For more details see chapter 7 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
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constrained and non-space-constrained
scenarios for each of the representative
equipment classes, in line with the
March 2010 Final Rule.
NEMA also commented that more
stringent energy conservation standards
would result in the design of motors
with lower slip 24 and in turn, higher
full-load speeds. NEMA stated that, as
such, more stringent energy
conservation standards would force
manufacturers of end-use products to
redesign their products to account for
the higher motor speeds. (NEMA, No. 11
at p. 13) This factor, it asserted, would
have the impact of increasing the speed
and therefore the output power
delivered to the motor’s application and
offset some of the improvement in
motor efficiency. NEMA also
commented that small businesses,
including motor manufacturers and
OEMs, would be required to spend more
for motors that provide little additional
energy savings from more stringent
energy conservation standards for the
small electric motors at issue. (NEMA,
No. 11 at p. 18) The designs analyzed
in the engineering analysis did not show
a significant (less than 2 percent) and
consistent (some more efficient designs
had slightly lower speeds) increase in
speed with increasing efficiency across
all ELs (See NOPD TSD Chapter 5).
However, as discussed previously, DOE
has tentatively determined that more
stringent energy conservation standards
would not be cost effective and
therefore is not proposing to amend the
current energy conservation standards
for this equipment.
As discussed in section IV.A.3, DOE
considered each of the design options
analyzed in the previous rulemaking
and also researched whether there were
any new technologies that could
improve the efficiency of small electric
motors. Accordingly, DOE determined
that there were no significant
technological advancements since the
March 2010 Final Rule. In addition,
comments received suggested the same.
(NEMA, No. 11 at p. 3) Given that DOE
was unable to identify any additional
design options for improving efficiency
that passed the screening criteria and
were not already considered in the
March 2010 Final Rule engineering
analysis, DOE analyzed the same motor
designs that were developed for the
March 2010 Final Rule except for CSIR
motors (which, as indicated earlier, did
not appear to have any technologicallyfeasible options available to improve
their efficiency). For each representative
equipment class, DOE established an
efficiency level for each motor design
that exhibited improved efficiency over
the baseline design. As discussed
previously, DOE considered the current
minimum energy conservation
standards as the baseline efficiency
levels for each representative equipment
class. These efficiency levels are
summarized in Table IV–5.
TABLE IV–5—SUMMARY OF EFFICIENCY LEVELS
Representative equipment class
Single-phase CSCR, 4-pole, 0.75-hp ......................................................................................................................
Polyphase, 4-pole, 1-hp ...........................................................................................................................................
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Efficiency
(%)
EL
0
1
2
3
4
5
0
1
2
3
81.8
82.8
84.0
84.6
86.7
87.9
83.5
85.2
86.3
87.8
In response to the April 2019 ECS
RFI, ASAP, et al. commented that DOE
should thoroughly investigate more
stringent efficiency levels than those
currently available in the market (ASAP,
et al., No. 16 at p. 3) ASAP, et al. noted
that DOE had found 15 percent of CSCR
motor models attained efficiencies
exceeding the levels adopted in the
March 2010 Final Rule and stated that
the prior availability of these higher
levels demonstrates technological
feasibility. In addition, ASAP, et al.
suggested that DOE review
manufacturer literature and other data
sources to determine if products
exceeding minimum standards are
available in the market for any regulated
equipment class. (ASAP, et al., No. 16
at pp. 3–4) As noted previously, DOE is
evaluating efficiency levels up to the
maximum technologically feasible
levels for each motor topology,
including efficiency levels that
represent motors that are not yet
commercially available (e.g., a small
electric motor design that is
technologically feasible but not
available on the market because of cost
considerations). As part of this
evaluation, DOE reviewed manufacturer
literature to determine the availability of
small electric motors across all
equipment classes considered in this
document by efficiency level. This
literature includes efficiency values
derived from manufacturer testing using
the mandatory DOE test procedure.
DOE’s review of this information
indicated that for CSCR motors, the
most recent manufacturer catalog data
only included a single model with an
efficiency above the baseline level (i.e.
the current standard required of these
motors). (See also section IV.F.8).
ASAP, et al. recommended that DOE
conduct an analysis similar to the
modeling analysis completed for the
March 2010 Final Rule and added that
while levels of maximum technological
feasibility may not be commercially
available today, energy conservation
standards policy could provide the basis
for making cost-effective improvements
to motors that could not be otherwise
achieved by market forces. (ASAP, et al.,
No. 16 at p. 4) Lenze Americas
commented that DOE should consider
setting standard levels at an
International Efficiency (‘‘IE’’)2 25
equivalent for motors below 1 hp and an
24 Motor slip is the difference between the speed
of the rotor (operating speed) and the speed of the
rotating magnetic field of the stator (synchronous
speed). When net rotor resistance of a motor design
is reduced, efficiency of the motor increases but slip
decreases, resulting in higher operating speeds.
25 The IE designations are efficiency levels
defined by IEC standard 60034–30–1 for 50 and 60
Hz single or three-phase line motors (regardless of
the technology). Motors meeting the IE1 efficiency
level are designated ‘‘standard efficiency,’’ IE2
qualifying motors are designated ‘‘high-efficiency,’’
IE3 qualifying motors are designated ‘‘premium
efficiency,’’ and IE4 qualifying motors are
designated ‘‘super premium efficiency.’’
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IE3 equivalent for motors greater than or
equal to 1 hp. (Lenze Americas, No. 3
at p. 1)
DOE is adopting the motor modeling
approach used in support of the March
2010 Final Rule to analyze and establish
efficiency levels and incremental motor
MSPs. DOE did not identify any
additional design options in the market
for improving efficiency that were not
already considered in the March 2010
Final Rule. In addition, while DOE is
not specifically evaluating the IE levels
in this analysis, the range of motor
efficiency levels analyzed in this
evaluation is inclusive of efficiencies
specified in the IE2 and IE3 efficiency
levels.
The CA IOUs commented that DOE
should conduct independent testing to
verify the efficiency performance of the
motor designs considered in each
representative equipment class. (CA
IOUs, No. 10 at p. 3) ASAP, et al.
suggested that DOE investigate whether
motors rated at the standard level are
more efficient than stated because DOE
regulations permit manufacturers to rate
their products conservatively. (ASAP, et
al., No. 16 at pp. 3–4) DOE notes that
the performance of the motor designs
considered in this analysis were verified
by conducting motor efficiency testing
during the previous rulemaking. Details
of this validation testing can be found
in appendix 5A of the March 2010 Final
Rule TSD.
DOE seeks comment on the
methodologies employed in the
engineering analysis, specifically
regarding the adoption of the motor
designs and associated efficiency levels
considered in the March 2010 Final
Rule analysis as the basis for this
proposed determination.
See section VII.B for a complete list of
issues on which DOE seeks comments.
4. Cost
For representative equipment classes,
each efficiency level is based on a motor
design with a distinct set of
performance characteristics, production
costs, and non-production costs. Full
production cost is a combination of
direct labor, direct materials, and
overhead. Non-production costs include
the cost of selling (market research,
advertising, sales representatives,
logistics), general and administrative
costs, research and development,
interest payments and profit factor.
A standard BOM was constructed for
each motor design that includes direct
material costs and labor time estimates
along with costs. The BOM is then
multiplied by a markup for overhead to
obtain an MPC that is further marked up
to reflect non-production costs to create
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an MSP. DOE notes that the costs
established for direct material costs and
labor time were initially determined in
terms of $2009 for the March 2010 Final
Rule. For this evaluation, DOE updated
these material and labor costs to be
representative of the market in 2018.
DOE adjusted historical material prices
to $2018 using the historical Bureau of
Labor Statistics Producer Price Indices
(‘‘PPI’’) 26 for each commodity’s
industry. In addition, DOE updated
labor costs and markups based on the
most recent and complete version (i.e.
2012) of the Economic Census of
Industry by the U.S. Census Bureau.27
In response to the April 2019 ECS
RFI, NEMA commented that tariffs on
steel and aluminum have caused cost
increases for current motor designs
which could exacerbate the cost impacts
of more stringent standards. (NEMA,
No. 11 at p. 13) DOE notes that changes
in the cost of steel and aluminum
components since 2010 have been
accounted for in this proposed
determination and are considered when
evaluating more stringent energy
conservation standards.
DOE seeks input on whether and how
the costs estimated for motor designs
considered in the March 2010 Final
Rule have changed since the time of that
analysis. DOE also requests information
on the investments (including related
costs) necessary to incorporate specific
design options, including, but not
limited to, costs related to new or
modified tooling (if any), materials,
engineering and development efforts to
implement each design option, and
manufacturing/production impacts.
See section VII.B for a complete list of
issues on which DOE seeks comments.
5. Scaling Relationships
In analyzing the equipment classes,
DOE developed a systematic approach
to scaling efficiency across horsepower
ratings and pole configurations, while
retaining reasonable levels of accuracy,
in a manner similar to the March 2010
Final Rule. DOE’s current energy
conservation standards for small electric
motors found at 10 CFR 431.446 list
minimum required efficiencies over a
range of horsepower and pole
configurations, providing a basis for
scaling efficiency across horsepower
and pole configurations for polyphase
and single-phase motors. The efficiency
relationships in the established
standards are based on a combination of
NEMA recommended efficiency
26 www.bls.gov/ppi/.
27 U.S. Census Bureau, 2012 Economic Census of
Industry Series Reports for Industry, U.S.
Department of Commerce, 2012
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standards, NEMA premium
designations, catalog data, and test data
for individual manufacturer motor
product lines. DOE has elected to apply
the same scaling methodologies used to
support the March 2010 Final Rule to
the engineering analysis for this
proposed determination. 75 FR 10894–
10895. This approach has been
presented previously to stakeholders
and has been updated based on
stakeholder input. In DOE’s view, this
approach has the added advantage of
reducing the analytical complexity
associated with conducting a detailed
engineering analysis of the costefficiency relationship on all 62
equipment classes. Id.
For this NOPD, while the engineering
analysis focuses on two representative
units, the energy use and life-cycle cost
analyses (see sections IV.E and IV.F)
consider two additional representative
units to separately analyze consumers of
integral (i.e., with horsepower greater
than or equal to 1 hp) single-phase
CSCR small electric motors and
fractional (i.e., with horsepower less
than 1 hp) polyphase small electric
motors. To scale to the equipment
classes that were not directly analyzed,
DOE followed several steps. First, DOE
evaluated the efficiency relationships
presented in the recommended
standards provided by NEMA for the
March 2010 Final Rule. DOE then
compiled efficiency data for as many
manufacturers and equipment classes as
possible and filtered the data to ensure
an accurate representation of the small
electric motors that are covered by the
statute. Next, DOE modeled all the
efficiency data in terms of motor losses
and used a best-fit curve to project
values to fill in any potential gaps in
data. Finally, DOE scaled the results of
the engineering analysis based on the
relationships found from the combined
NEMA data and catalog data.
DOE seeks input on implementing a
similar scaling methodology as that
used for the March 2010 Final Rule in
this NOPD.
See section VII.B for a complete list of
issues on which DOE seeks comments.
D. Markups Analysis
The markups analysis develops
appropriate markups (e.g., retailer
markups, distributor markups,
contractor markups) in the distribution
chain to convert the MSP estimates
derived in the engineering analysis to
consumer prices, which are then used in
the LCC and PBP analysis. At each step
in the distribution channel, companies
mark up the price of the equipment to
cover business costs and profit margin.
For small electric motors, the main
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parties in the distribution chain are
manufacturers, distributors, contractors
or installers, OEMs of equipment
incorporating small electric motors, and
consumers.
DOE relied on estimates provided by
NEMA during the March 2010 Final
Rule to establish the proportion of
shipments through each distribution
channel.28 In response to the April 2019
ECS RFI, DOE did not receive any data
to support alternative distribution
channels for small electric motors. DOE
used data from the U.S. Census
Bureau 29 and the Sales Tax
Clearinghouse 30 to develop distribution
channel markups and sales tax
estimates.
DOE also developed baseline and
incremental markups for each actor in
needing to redesign their products in
order to incorporate small electric
motors of different, including larger,
sizes. Nationally, businesses spend
about 2.7 percent of U.S. gross domestic
product on research and development
(‘‘R&D’’).32 DOE estimates that R&D by
equipment OEMs, including the design
of new products, approximately
represents at most 2.7 percent of
company revenue. Similar to what was
done in the March 2010 Final Rule, DOE
accounted for the additional costs to
redesign products and incorporate
differently-shaped motors by adding 2
percent to the OEM markups.33
Table IV–6 summarizes the overall
baseline and incremental markups for
each distribution channel considered for
small electric motors.
the distribution chain. Baseline
markups are applied to the price of
equipment with baseline efficiency,
while incremental markups are applied
to the difference in price between
baseline and higher-efficiency models
(the incremental cost increase). The
incremental markup is typically less
than the baseline markup and is
designed to maintain similar per-unit
operating profit before and after new or
amended standards.31 DOE relied on
economic data from the U.S. Census
Bureau to estimate average baseline and
incremental markups.
Further, in the space-constrained
scenario, DOE developed a modified
OEM markup to account for the costs
faced by those OEMs of equipment
incorporating small electric motors
TABLE IV–6—SMALL ELECTRIC MOTORS DISTRIBUTION CHANNEL MARKUPS
Distribution channel
(from manufacturer)
Direct to OEMs
(65%)
Via wholesalers to OEMs
(30%)
Via wholesalers to end-users
(5%)
Main Party
Baseline
Incremental
Baseline
Incremental
Baseline
Incremental
Motor Wholesaler .....................................
Original Equipment Manufacturer (OEM)*
Equipment Wholesaler .............................
Retailer .....................................................
Contractor ................................................
........................
1.47/1.50
1.41
........................
1.1
........................
1.23/1.25
1.19
........................
1.1
1.35
1.47/1.50
1.41
........................
1.1
1.19
1.23/1.25
1.19
........................
1.1
1.35
........................
........................
1.53
1.1
1.19
........................
........................
1.27
1.1
Sales Tax .................................................
1.0721
Overall ......................................................
2.45/2.50
1.0721
1.72/1.76
3.31/3.37
1.0721
2.06/2.10
2.44
1.78
* Non-space-constrained scenario/space-constrained scenario.
The purpose of the energy use
analysis is to determine the annual
energy consumption of small electric
motors at different efficiency levels and
to assess the energy savings potential of
increased efficiency. The analysis
estimates the range of energy use of
small electric motors in the field (i.e., as
they are actually used by consumers).
The energy use analysis provides the
basis for other analyses DOE performed,
particularly assessments of the energy
savings and the savings in consumer
operating costs that could result from
adoption of amended or new standards.
The analysis focuses on the two
representative units identified in the
engineering analysis (see section IV.C)
for which engineering analysis results
were obtained at levels at and above the
baseline. Two additional representative
units were included to separately
analyze consumers of integral (i.e., with
horsepower greater than or equal to 1
hp) single-phase CSCR small electric
motors and fractional (i.e., with
horsepower less than 1 hp) polyphase
small electric motors (see Table IV–7).34
For each representative unit, DOE
determined the annual energy
consumption value by multiplying the
motor input power by the annual
operating hours for a representative
sample of motor consumers.
28 For more details see chapter 7 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
29 U.S. Census Bureau, 2014 Annual Survey of
Manufacturers; 2012 Economic Census Annual
Wholesale Trade Survey.
30 Sales Tax Clearinghouse, Inc. State sales tax
rates along with combined average city and county
rates, 2017. Available at: https://thestc.com/
STrates.stm.
31 Because the projected price of standardscompliant products is typically higher than the
price of baseline products, using the same markup
for the incremental cost and the baseline cost would
result in higher per-unit operating profit. While
such an outcome is possible, DOE maintains that in
markets that are reasonably competitive it is
unlikely that imposing more stringent standards
would lead to a sustainable increase in profitability
in the long run.
32 National Science Board. January 2018. Science
and Engineering Indicators 2018. Figure 4–3, Ratio
of U.S. R&D to gross domestic product, by roles of
federal, business, and other nonfederal funding for
R&D: 1953–2015. Arlington, VA: National Science
Foundation (NSB–2018–1) Available at https://
www.nsf.gov/statistics/2018/nsb20181/assets/1038/
research-and-development-u-s-trends-andinternational-comparisons.pdf.
33 For more details see chapter 7 of the 2010 small
electric motors final rule TSD, at https//
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
34 Similar to the approach used in the engineering
analysis when selecting representative units, DOE
reviewed model counts from the manufacturer
online catalog data to identify these additional
units. DOE reviewed counts of CSCR, 4-poles small
electric motors and polyphase, 4-poles, small
electric motors models. For CSCR motors, the 1
horsepower value had the most counts and DOE
selected a unit at 1 horsepower. For polyphase
motors, the 0.33, 0.5, and 0.75 horsepower values
had the most counts (and similar counts) and DOE
selected a unit at 0.5 horsepower (i.e. the mid-range
of these horsepower values).
DOE seeks comment on the
methodology and data used for
estimating end-user prices for small
electric motors.
See section VII.B for a complete list of
issues on which DOE seeks comments.
Chapter 6 of the TSD provides details on
the DOE’s markup analysis for small
electric motors.
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E. Energy Use Analysis
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TABLE IV–7—REPRESENTATIVE UNITS ANALYZED IN THE ENERGY USE AND LIFE-CYCLE COST ANALYSES
Representative unit
1
2
3
4
...............................................
...............................................
...............................................
...............................................
Equipment class group
Single-phase, CSCR ................................................................
Polyphase .................................................................................
Single-phase, CSCR ................................................................
Polyphase .................................................................................
DOE seeks comments on how whether
additions or changes should be made to
the energy use analysis as well as any
data supporting alternate inputs to
characterize the variability in annual
energy consumption for small electric
motors.
See section VII.B for a complete list of
issues on which DOE seeks comments.
Chapter 7 of the TSD provides details on
the DOE’s energy use analysis for small
electric motors.
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1. Consumer Sample
For each representative unit, DOE
created consumer samples for three
individual sectors: Residential,
commercial, and industrial. DOE used
the samples to determine small electric
motor annual energy consumption as
well as for conducting the LCC and PBP
analyses. Each consumer in the sample
was assigned a sector and an
application. DOE used data from the
March 2010 Final Rule to establish
distributions of small electric motors by
sector. Five main motor applications
were selected as representative
applications (compressors, fans, pumps,
material handling, and others). In order
to characterize the distributions of small
electric motors across applications in
the industrial sector, DOE used data
from hundreds of field assessments
aggregated in two databases: (1) A
database of motor nameplate and field
data compiled by the Washington State
University (‘‘WSU’’) Extension Energy
Program, Applied Proactive
Technologies, and New York State
Energy Research and Development
Authority, and; (2) a database of motor
nameplate and field data compiled by
the Industrial Assessment Center at
Oregon University (‘‘field assessment
data’’).35 For the commercial and
residential sectors, DOE used data from
a previous DOE publication to estimate
distribution of small electric motors by
35 Strategic Energy Group (January 2008),
Northwest Industrial Motor Database Summary.
Regional Technical Forum. Available at https://
rtf.nwcouncil.org/subcommittees/osumotor/
Default.htm.
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application.36 DOE also assumed that 20
percent of consumers had spaceconstraints and 80 percent were nonspace-constrained based on data from
the March 2010 Final Rule. In response
to the April 2019 ECS RFI, DOE did not
receive any data to support alternative
distributions of small electric motors by
sectors and applications or by spaceconstrained/non-space-constrained
applications.
DOE seeks comment on the approach
used for estimating distribution of
consumers of small electric motors
across applications and sectors, as well
as any data supporting the use of
alternate distributions.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 7 of the TSD for more
details on the resulting distribution of
consumers by sector and applications.
4-pole
4-pole
4-pole
4-pole
......................................
......................................
......................................
......................................
Rated
horsepower
0.75
1
1
0.5
publication of the March 2010 Final
Rule.37
DOE seeks comment on the
methodology used for estimating the
distribution of motor load for each
application and sector, as well as any
data supporting alternate distributions.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 7 of the TSD for the
resulting distribution of load for each
application.
3. Annual Operating Hours
DOE calculated the motor input
power as the sum of the motor rated
horsepower multiplied by the motor
operating load (i.e., the motor output
power) and of the losses at the operating
load (i.e., part-load losses). DOE
determined the part-load losses using
outputs from the engineering analysis
(full-load efficiency at each efficiency
level) and published part-load efficiency
information from manufacturer catalogs
to model motor part-load losses as a
function of the motor’s operating load.
NEMA commented that there was a
range of operating motor loads for small
electric motors and that there was no
typical operating load by application.
NEMA did not provide data to
characterize operating load. (NEMA, No.
11 at p. 15) DOE estimated the operating
load using operating load data specific
to motors in the 0.25–3 hp range, which
was based on additional field
assessments data collected since the
NEMA commented that there was a
range of operating hours for small
electric motors and noted that for this
equipment, operating hours are
generally lower compared to electric
motors and stated that most small
electric motors do not run continuously.
NEMA did not provide data to
characterize operating hours. (NEMA,
No. 11 at p. 15) For the industrial sector,
DOE used data specific to motors in the
0.25–3 hp range from the field
assessment data to establish
distributions of annual operating hours
by application. For the commercial and
residential sectors, DOE used operating
hours data from the March 2010 Final
Rule.38
DOE seeks comment on the
methodology used to estimate annual
operating hours, as well as any data
supporting alternate distribution of
operating hours by application and
sector.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 7 of the TSD for more
details on the distributions of annual
operating hours by application and
sector.
Table IV–8 shows the estimated
average annual energy use at each
efficiency level analyzed.
36 W. Goetzler, T. Sutherland, C. Reis. ‘‘Energy
Savings Potential and Opportunities for HighEfficiency Electric Motors in Residential and
Commercial Equipment’’ U.S. Department of
Energy, December 4, 2013. Available at https://
energy.gov/sites/prod/files/2014/02/f8/
Motor%20Energy%20Savings%20
Potential%20Report%202013-12-4.pdf.
37 This horsepower range was selected as it
corresponds to the motor horsepower of small
electric motors that are currently subject to
standards (see section IV.A.1).
38 For more details see chapter 6 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
2. Motor Input Power
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TABLE IV–8—AVERAGE ANNUAL ENERGY USE BY EFFICIENCY LEVEL
Kilowatt-hours per year
Rep. unit
1
2
3
4
.....................
.....................
.....................
.....................
Description
Single-phase, CSCR, 4-pole, 0.75 hp .........................
Polyphase, 4-pole, 1 hp ..............................................
Single-phase, CSCR, 4-pole, 1 hp ..............................
Polyphase, 4-pole, 0.5 hp ...........................................
F. Life-Cycle Cost and Payback Period
Analysis
DOE conducted LCC and PBP
analyses to evaluate the economic
impacts on individual consumers of
potential energy conservation standards
for small electric motors. The effect of
new or amended energy conservation
standards on individual consumers
usually involves a reduction in
operating cost and an increase in
purchase price. DOE used the following
two metrics to measure consumer
impacts:
• The LCC is the total consumer
expense of equipment over the life of
that equipment, consisting of total
installed cost (MSP, distribution chain
markups, sales tax, and installation
costs) plus operating costs (expenses for
energy use, maintenance, and repair).
To compute the operating costs, DOE
discounts future operating costs to the
time of purchase and sums them over
the lifetime of the equipment.
• The simple PBP is the estimated
amount of time (in years) it takes
consumers to recover the increased
purchase cost (including installation) of
more-efficient equipment through lower
operating costs. DOE calculates the
simple PBP by dividing the change in
purchase cost at higher efficiency levels
by the change in annual operating cost
for the year that amended or new
standards are assumed to take effect.
For any given efficiency level, DOE
measures the change in LCC relative to
the LCC in the no-new-standards case,
which reflects the estimated efficiency
distribution of small electric motors in
the absence of new or amended energy
conservation standards. In contrast, the
EL 0
EL 1
EL 2
EL 3
1,651.6
2,091.2
2,176.6
1,164.9
1,626.2
2,046.1
2,144.1
1,129.8
1,596.7
2,019.3
2,107.9
1,108.3
1,582.0
1,982.4
2,089.3
1,079.4
simple PBP for a given efficiency level
is measured relative to the baseline
equipment. The analysis focuses on the
four representative units identified in
Table IV–7.
For each considered efficiency level
in each equipment class, DOE
calculated the LCC and PBP for a
nationally representative set of
consumers. As stated previously, DOE
developed a sample based on
distributions of consumers across
sectors and applications, as well as
across efficiency levels. For each sample
consumer, DOE determined the unit
energy consumption and appropriate
energy price. By developing a
representative sample of consumers, the
analysis captured the variability in
energy consumption and energy prices
associated with the use of small electric
motors.
Inputs to the calculation of total
installed cost include the cost of the
equipment—which includes MSPs,
retailer markups, and sales taxes—and
installation costs. Inputs to the
calculation of operating expenses
include annual energy consumption,
energy prices and price projections,
repair and maintenance costs,
equipment lifetimes, and discount rates.
DOE created distributions of values for
equipment lifetime, discount rates, and
sales taxes, with probabilities attached
to each value, to account for their
uncertainty and variability.
The computer model DOE uses to
calculate the LCC and PBP relies on a
Monte Carlo simulation to incorporate
uncertainty and variability into the
analysis. The Monte Carlo simulations
randomly sample input values from the
EL 4
EL5
1,534.4
................
2,029.0
................
1,507.5
................
1,994.2
................
probability distributions and consumer
samples. The model calculated the LCC
and PBP for equipment at each
efficiency level for 10,000 consumers
per representative unit per simulation
run. The analytical results include a
distribution of 10,000 data points
showing the range of LCC savings for a
given efficiency level relative to the nonew-standards case efficiency
distribution. In performing an iteration
of the Monte Carlo simulation for a
given consumer, equipment efficiency is
chosen based on its probability. If the
chosen equipment efficiency is greater
than or equal to the efficiency of the
standard level under consideration, the
LCC and PBP calculation reveals that a
consumer is not impacted by the
standard level. By accounting for
consumers who already purchase moreefficient equipment, DOE avoids
overstating the potential benefits from
increasing equipment efficiency.
DOE calculated the LCC and PBP for
all consumers as if each were to
purchase a new motor in the expected
year of compliance with amended
standards. For purposes of its analysis,
DOE estimated that any amended
standards would apply to small electric
motors manufactured 5 years after the
date on which the amended standard is
published. DOE estimated publication
of a final rule in the first half of 2023.
Therefore, for purposes of its analysis,
DOE used 2028 as the first full year of
compliance.
Table IV–9 summarizes the approach
and data DOE used to derive inputs to
the LCC and PBP calculations. The
subsections that follow provide further
discussion.
khammond on DSKJM1Z7X2PROD with PROPOSALS4
TABLE IV–9—SUMMARY OF INPUTS AND METHODS FOR THE LCC AND PBP ANALYSIS *
Inputs
Source/method
Equipment Cost ...............................................................................................................................
Derived by multiplying MSPs by distribution
channel markups and sales tax, as appropriate.
Assumed no change with efficiency level other
than shipping costs.
Motor input power multiplied by annual operating hours per year.
Variability: Based on plant surveys and previous DOE study.
Installation Costs .............................................................................................................................
Annual Energy Use .........................................................................................................................
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TABLE IV–9—SUMMARY OF INPUTS AND METHODS FOR THE LCC AND PBP ANALYSIS *—Continued
Inputs
Source/method
Energy Prices ..................................................................................................................................
Electricity: Used average and marginal prices
(Coughlin and Beraki).
Based on AEO 2019 price projections.
Assumed no change with efficiency level.
Estimated using information from 2010 standards final rule and from DOE’s Advanced
Manufacturing Office.
Residential: Approach involves identifying all
possible debt or asset classes that might be
used to purchase the considered appliances,
or might be affected indirectly. Primary data
source was the Federal Reserve Board’s
Survey of Consumer Finances.
Commercial: Calculated as the weighted average cost of capital for entities purchasing
small electric motors. Primary data source
was Damodaran Online.
2028
Energy Price Trends .......................................................................................................................
Repair and Maintenance Costs ......................................................................................................
Equipment Lifetime .........................................................................................................................
Discount Rates ................................................................................................................................
Compliance Date .............................................................................................................................
* References for the data sources mentioned in this table are provided in the sections following the table.
1. Equipment Cost
To calculate consumer equipment
costs, DOE multiplied the MSPs
developed in the engineering analysis
by the distribution channel markups
described in section IV.D (along with
sales taxes). DOE used different
markups for baseline motors and higherefficiency motors, because DOE applies
an incremental markup to the increase
in MSP associated with higherefficiency equipment. Further, in this
proposed determination, DOE assumed
the prices of small electric motors
would remain constant over time (no
decrease in price).
khammond on DSKJM1Z7X2PROD with PROPOSALS4
2. Installation Cost
Installation cost includes labor,
overhead, and any miscellaneous
materials and parts needed to install the
equipment. In response to the April
2019 ECS RFI, DOE did not receive any
information on small electric motors
consumer installation costs. Based on
information from the March 2010 Final
Rule and installation cost data from RS
Means Electrical Cost Data 2019,39 DOE
estimated that installation costs do not
increase with equipment efficiency
except in terms of shipping costs
depending on the weight of the more
efficient motor.40 To arrive at total
installed costs, DOE included shipping
costs as part of the installation costs.
These were based on weight data from
the engineering analysis, which
39 RS
Means. Electrical Cost Data, 42h Annual
Edition, 2019. Rockland, MA. p. 315.
40 For more details see chapter 8 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
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accounted for updated manufacturer
catalog data collected by DOE.
DOE seeks comment on the
methodology used to estimate
installation costs as well as any data
supporting alternate installation cost
estimates.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 8 of the TSD for more
information on the installation costs for
small electric motors.
3. Annual Energy Consumption
For each sampled consumer, DOE
determined the energy consumption for
small electric motors in each standards
case analyzed using the approach
described in section IV.E of this
proposed determination.
4. Energy Prices
For electricity prices, DOE used
national annual marginal and average
prices from Coughlin and Beraki
(2019).41 To estimate energy prices in
future years, DOE multiplied the energy
prices by a projection of annual change
in average price consistent with the
projections in the AEO 2019, which has
an end year of 2050. To estimate price
trends after 2050, DOE used the average
41 See Coughlin, K. and B. Beraki. Residential
Electricity Prices: A Review of Data Sources and
Estimation Methods. 2018. Lawrence Berkeley
National Lab. (LBNL), Berkeley, CA (United States).
Report No. LBNL–2001169. (Last accessed May 21,
2019.) https://ees.lbl.gov/publications/residentialelectricity-prices-review. See also Coughlin, K. and
B. Beraki. Non-residential Electricity Prices: A
Review of Data Sources and Estimation Methods.
2019. Lawrence Berkeley National Lab. (LBNL),
Berkeley, CA (United States). Report No. LBNL–
2001203. (Last accessed May 21, 2019.) https://
ees.lbl.gov/publications/non-residential-electricityprices.
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annual rate of change in prices from
2030 to 2050.
5. Maintenance and Repair Costs
Repair costs are associated with
repairing or replacing small electric
motor components that have failed;
maintenance costs are associated with
maintaining the operation of the
equipment. Small electric motors are
usually not repaired. Most small motors
are mass produced and are not
constructed or designed to be repaired
because the manufacturing process uses
spot welding welds and rivets to fasten
or secure the frame and assembled
components, not nuts and bolts—
meaning that the small electric motor
cannot be readily disassembled and
reassembled. During the rulemaking for
the March 2010 Final Rule, DOE found
no evidence that repair or maintenance
costs, if any, would increase with higher
motor energy efficiency.42 DOE
reviewed more recent motor repair cost
data for small electric motors and found
no evidence that maintenance and
repair costs increase with efficiency for
small electric motors in scope.43 NEMA
commented that for small electric motor
designs that simply added more active
material to the rotors and/or stators,
repair practices are unlikely to change.
NEMA noted that CSCR motors have
higher repair costs compared to CSIR
motors due to the inclusion of a second
capacitor. NEMA did not provide any
42 For more details see chapter 8 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
43 Vaughen’s (2013), Vaughen’s Motor & Pump
Repair Price Guide, 2013 Edition. Available at
www.vaughens.com.
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additional information to characterize
repair costs. (NEMA, No. 11 at p. 15)
Based on information DOE reviewed,
small electric motors are generally not
repaired and NEMA’s comments suggest
that repair practices are unlikely to
change within each equipment class
group (i.e., polyphase, CSCR, and CSIR).
Accordingly, DOE assumed that more
efficient small electric motors would not
have greater repair or maintenance costs
and therefore did not account for these
costs in the LCC calculation.
DOE seeks comment on the
assumptions for estimating repair and
maintenance costs as well as any data
supporting alternate repair and
maintenance cost estimates.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 8 of the TSD for more
information on the repair and
maintenance costs for small electric
motors.
khammond on DSKJM1Z7X2PROD with PROPOSALS4
6. Motor Lifetime
To characterize lifetimes in a manner
that would reflect the fact that this
factor is dependent on its application,
DOE used two Weibull distributions.44
One characterizes the motor lifetime in
total operating hours (i.e., mechanical
lifetime), while the other characterizes
the lifetime in years of use in the
application (e.g., a pump). DOE used
mechanical lifetime data from the 2010
small electric motors final rule analysis
and from DOE’s Advanced
Manufacturing Office 45 and estimated
an average mechanical lifetime of
30,000 hours for CSCR motors and of
40,000 hours for polyphase motors. The
Weibull parameters from the March
2010 Final Rule were used to derive
these lifetime distributions.46 In the
course of the life-cycle analysis, DOE’s
current analysis further combines these
two distributions with OEM application
lifetimes to estimate the distribution of
small electric motor lifetimes. DOE
determined the mechanical lifetime of
each motor in years by dividing its
mechanical lifetime in hours by its
annual hours of operation. DOE then
compared this mechanical lifetime (in
years) with the sampled application
44 The Weibull distribution is one of the most
commonly used distributions in reliability. It is
commonly used to model time to fail, time to repair
and material strength.
45 U.S. Department of Energy. Advanced
Manufacturing Office. Motors Systems Tip Sheet #3.
Energy Tips: Motor Systems. Extending the
Operating Life of Your Motor. 2012. https://
www.energy.gov/sites/prod/files/2014/04/f15/
extend_motor_operlife_motor_systemts3.pdf.
46 For more details see chapter 8 of the 2010 small
electric motors final rule TSD, at https://
www.regulations.gov/document?D=EERE-2007-BTSTD-0007-0036.
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lifetime (also in years), and assumed
that the motor would be retired at the
younger of these two ages. In the March
2010 Final Rule, this approach resulted
in projected average lifetimes of 7 years
for single-phase CSCR motors and 9
years for polyphase motors. In the April
2019 ECS RFI, DOE presented the
average lifetimes from the March 2010
Final Rule (i.e. 7 years for single-phase
CSCR motors and 9 years for polyphase
motors). NEMA commented that 8 years
was a reasonable starting point to
estimate lifetime for small electric
motors. NEMA did not provide lifetime
estimates by equipment class and noted
that the actual lifetime is heavily
dependent on the application. (NEMA,
No. 11 at p. 15). Because of updates
made to the annual operating hours (see
section IV.E.3), the updated analysis for
this NOPD yielded average lifetimes of
6.6 years for single-phase CSCR motors
and 8.5 years for polyphase motors.
DOE seeks comment on the
methodology it used for estimating
small electric motor lifetimes, as well as
any data supporting alternate values for
these lifetimes.
See section VII.B for a complete list of
issues on which DOE seeks comments.
See chapter 8 of the TSD for more
information on the lifetime of small
electric motors.
7. Discount Rates
In calculating LCC, DOE applies
discount rates appropriate to
commercial, industrial, and residential
consumers to estimate the present value
of future operating costs. DOE estimated
a distribution of discount rates for small
electric motors based on the cost of
capital of publicly traded firms in the
sectors that purchase small electric
motors.
As part of its analysis, DOE also
applies weighted average discount rates
calculated from consumer debt and
asset data, rather than marginal or
implicit discount rates.47 DOE notes that
the LCC does not analyze the equipment
purchase decision, so the implicit
discount rate is not relevant in this
model. The LCC estimates net present
value over the lifetime of the
equipment, so the appropriate discount
rate will reflect the general opportunity
cost of household funds, taking this
time scale into account. Given the long
47 The implicit discount rate is inferred from a
consumer purchase decision between two otherwise
identical goods with different first cost and
operating cost. It is the interest rate that equates the
increment of first cost to the difference in net
present value of lifetime operating cost,
incorporating the influence of several factors:
Transaction costs; risk premiums and response to
uncertainty; time preferences; interest rates at
which a consumer is able to borrow or lend.
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time horizon modeled in the LCC, the
application of a marginal interest rate
associated with an initial source of
funds is inaccurate. Regardless of the
method of purchase, consumers are
expected to continue to rebalance their
debt and asset holdings over the LCC
analysis period, based on the
restrictions consumers face in their debt
payment requirements and the relative
size of the interest rates available on
debts and assets. DOE estimates the
aggregate impact of this rebalancing
using the historical distribution of debts
and assets.
To establish residential discount rates
for the LCC analysis, DOE identified all
relevant household debt or asset classes
in order to approximate a consumer’s
opportunity cost of funds related to
appliance energy cost savings. It
estimated the average percentage shares
of the various types of debt and equity
by household income group using data
from the Federal Reserve Board’s Survey
of Consumer Finances 48 (‘‘SCF’’) for
1995, 1998, 2001, 2004, 2007, 2010,
2013, and 2016. Using the SCF and
other sources, DOE developed a
distribution of rates for each type of
debt and asset by income group to
represent the rates that may apply in the
year in which amended standards
would take effect.
For commercial and industrial
consumers, DOE used the cost of capital
to estimate the present value of cash
flows to be derived from a typical
company project or investment. Most
companies use both debt and equity
capital to fund investments, so the cost
of capital is the weighted-average cost to
the firm of equity and debt financing.
This corporate finance approach is
referred to as the weighted-average cost
of capital. DOE used currently available
economic data in developing discount
rates. See chapter 8 of the TSD for
details on the development of end-user
discount rates.
8. Efficiency Distribution in the NoNew-Standards Case
To accurately estimate the share of
consumers that would be affected by a
potential energy conservation standard
at a particular efficiency level, DOE’s
LCC analysis considered the projected
distribution (market shares) of
equipment efficiencies in the ‘‘no-newstandards’’ case (i.e., the case without
amended or new energy conservation
standards) in the compliance year. In its
analysis for the March 2010 Final Rule,
48 Board of Governors of the Federal Reserve
System. Survey of Consumer Finances. 1995, 1998,
2001, 2004, 2007, 2010, 2013, and 2016. Available
at: https://www.federalreserve.gov/econresdata/scf/
scfindex.htm.
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DOE developed no-new standards case
efficiency distributions based on the
distributions of currently available
models for which small electric motor
efficiency is included in catalog listings.
In preparation for the NOPD, DOE
collected updated catalog data and
analyzed the distribution of small
electric motors in the manufacturer
catalog data for CSCR and polyphase
small electric motors.49 In response to
the April 2019 RFI, DOE did not receive
any input on projected efficiency trends.
DOE projected that these efficiency
distributions would remain constant
throughout 2028. See chapter 8 of the
TSD for the estimated efficiency
distributions.
9. Payback Period Analysis
The PBP is the amount of time it takes
the consumer to recover the additional
installed cost of more-efficient
equipment, compared to baseline
equipment, through energy cost savings.
PBPs are expressed in years. PBPs that
exceed the life of the equipment mean
that the increased total installed cost is
not recovered in reduced operating
expenses.
The inputs to the simple PBP
calculation for each efficiency level are
the change in total installed cost of the
equipment and the change in the firstyear annual operating expenditures
relative to the baseline. The simple PBP
calculation uses the same inputs as the
LCC analysis, except that discount rates
are not needed.
khammond on DSKJM1Z7X2PROD with PROPOSALS4
G. Other Comments Received
In response to the April 2019 ECS
RFI, DOE also received comments on
aspects of the standards for small
electric motors that do not relate to the
methodologies or discussions presented
in other sections of this document. This
section addresses these stakeholder
comments.
The Institute for Policy Integrity
commented on monetizing the benefits
of emissions reductions in analyzing the
national impact and selecting the
maximum economically justified
efficiency level. (Institute for Policy
Integrity, No. 5 at p. 1) DOE also
received a comment from an individual
questioning how DOE would ensure that
GHG (i.e. greenhouse gas) emissions
would not increase as a result of
amended standards. (Zach Belanger, No.
7 at p. 1)
49 DOE relied on 140 models of CSCR small
electric motors and 229 models of polyphase small
electric motors identified in the manufacturer
catalog data. More details on the distributions of
currently available models for which motor catalog
list efficiency is available in Chapter 8 of the TSD.
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As discussed previously, under the
periodic review of energy conservation
standards required by EPCA, DOE is
directed to consider whether amended
standards would result in significant
conservation of energy; are
technologically feasible; and would be
cost effective. (42 U.S.C. 6316(a); 42
U.S.C. 6295(m)(1) and 42 U.S.C. 6295
(n)(2)) In evaluating the costeffectiveness of amended standards,
EPCA requires DOE to consider the
savings in operating costs throughout
the estimated average life of the covered
equipment in the type (or class)
compared to any increase in price,
initial charges, or maintenance expenses
of the covered equipment that are likely
to result from the imposition of the
standard. (See 42 U.S.C. 6295(n)(2)(C)
and 42 U.S.C. 6295(o)(2)(B)(II)) DOE has
tentatively determined that the potential
standards would not be cost-effective as
defined in EPCA. See section V.B., infra.
DOE has not conducted an emissions
analysis as would generally be
performed were DOE to propose
amended energy conservation
standards.
The CA IOUs suggested that DOE
adopt a common metric between small
electric motors and electric motors. The
CA IOUs commented that different
metrics create confusion and represent
an additional burden for the motor
industry. The CA IOUs recommended
consideration of a single metric for both
small electric motors and electric
motors or development of a new metric
in consultation with industry. (CA
IOUs, No. 10 at p. 4)
The energy conservation standards for
small electric motors at 10 CFR 431.446
are expressed in terms of average fullload efficiency, while the standards for
electric motors at 10 CFR 431.25 are
expressed in terms of nominal full-load
efficiency. The nominal efficiency
values for electric motors are based on
a sequence of discretized standard
values in NEMA Standard MG 1–2016
Table 12–10, and are familiar to motor
users. Under this approach, the full-load
efficiency is identified on the electric
motor nameplate by a nominal
efficiency level selected from Table 12–
10 that shall not be greater than the
average efficiency of a large population
of motors of the same design. However,
NEMA has not adopted a comparable set
of standardized values for small electric
motors. Because no standardized
nominal values are published for small
electric motors, DOE is unable to
consider at this time their
appropriateness as a small electric
motor performance metric. Absent
standardized nominal values for small
electric motors, DOE is unable to
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ascertain whether existing energy
conservation standards would require
the same level of stringency if based on
nominal values. Therefore, DOE is not
proposing to amend the metric for small
electric motor energy conservation
standards in this document.
Finally, DOE received a comment
from an individual requesting
information on the RFI data collection
process, specifically in reference to the
privacy of manufacturers and
consumers. (Palubin, No. 2 at p. 1) As
provided in the April 2019 ECS RFI,
DOE accepted written comments from
the public on any subject within the
scope of the small electric motors
energy conservation standards. The
confidentiality of comments submitted
is addressed in section VII of this
document, including requests to have
comments treated as confidential under
10 CFR 1004.11.
V. Analytical Results and Conclusions
The following section addresses the
results from DOE’s analyses with
respect to the considered energy
conservation standards for small electric
motors examined by DOE.
A. Energy Savings
For each standards case considered,
DOE estimated the per unit lifetime
energy savings for small electric motors
purchased in the expected compliance
year of any potential standards. DOE did
not separately evaluate the significance
of the potential energy conservation
under the considered amended standard
because it has tentatively determined
that the potential standards would not
be cost-effective as defined in EPCA. (42
U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A);
42 U.S.C. 6295(n)(2))
B. Cost Effectiveness
In general, higher-efficiency
equipment affects consumers in two
ways: (1) Purchase price increases and
(2) annual operating cost decreases.
Inputs used for calculating the LCC and
PBP include total installed costs (i.e.,
equipment price plus installation costs),
and operating costs (i.e., annual energy
and water use, energy and water prices,
energy and water price trends, repair
costs, and maintenance costs). The LCC
calculation also uses equipment lifetime
and a discount rate.
Table V–1 through Table V–7 show
the LCC and PBP results for the ELs
considered for each equipment class.
Results for each representative unit are
presented by two tables: In the first of
each pair of tables, the simple payback
is measured relative to the baseline
equipment. In the second table, the
impacts are measured relative to the
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efficiency distribution in the no-newstandards case in the expected
compliance year for the potential
standards considered. Because some
consumers purchase equipment with
higher efficiency in the no-new-
standards case, the average savings are
greater than the difference between the
average LCC of the baseline equipment
and the average LCC at each EL. The
savings refer only to consumers who are
affected by a standard at a given EL.
Those who already purchase a small
electric motor with efficiency at or
above a given EL are not affected.
Consumers for whom the LCC-increases
at a given EL experience a net cost.
TABLE V–1—AVERAGE LCC AND PBP RESULTS BY EFFICIENCY LEVEL FOR REPRESENTATIVE UNIT 1: SINGLE-PHASE,
CSCR, 4-POLE, 0.75 HP
Average costs 2018$
Efficiency Level
0
1
2
3
4
5
Total
installed
cost
...............................................................
...............................................................
...............................................................
...............................................................
...............................................................
...............................................................
First year’s
operating
cost
465.8
481.8
502.1
544.4
571.9
1,403.1
Lifetime
operating
cost
156.2
153.8
151.1
149.7
145.2
142.7
600.6
591.4
580.7
575.4
558.1
548.3
Simple
payback years
LCC
1,066.3
1,073.2
1,082.8
1,119.8
1,130.0
1,951.4
Average
lifetime years
........................
6.7
7.0
12.0
9.6
69.2
6.6
6.6
6.6
6.6
6.6
6.6
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is
measured relative to the baseline equipment.
TABLE V–2—LCC SAVINGS RELATIVE TO THE NO-NEW STANDARDS CASE EFFICIENCY DISTRIBUTION FOR
REPRESENTATIVE UNIT 1: SINGLE-PHASE, CSCR, 4-POLE, 0.75 HP
Life-cycle cost savings
Efficiency level
1
2
3
4
5
Percent of customers
that experience
Average savings *
Net cost (percent)
2018$
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
¥6.8
¥16.3
¥53.3
¥63.0
¥884.3
78.3
81.8
90.7
89.8
100.0
* The savings represent the average LCC for affected consumers.
TABLE V–3—AVERAGE LCC AND PBP RESULTS BY EFFICIENCY LEVEL FOR REPRESENTATIVE UNIT 2: POLYPHASE, 4POLE, 1 HP
Average costs 2018$
Efficiency level
0
1
2
3
Total
installed cost
...............................................................
...............................................................
...............................................................
...............................................................
First year’s
operating
cost
450.4
519.7
579.3
1,386.3
Lifetime
operating
cost
192.8
188.7
186.2
182.8
923.1
903.2
891.4
875.2
Simple
payback years
LCC
1,373.5
1,423.0
1,470.7
2,261.4
Average
lifetime years
........................
16.7
19.5
93.6
8.5
8.5
8.5
8.5
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is
measured relative to the baseline equipment.
TABLE V–4—LCC SAVINGS RELATIVE TO THE NO-NEW STANDARDS CASE EFFICIENCY DISTRIBUTION FOR
REPRESENTATIVE UNIT 2: POLYPHASE, 4-POLE, 1 HP
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Life-cycle cost savings
Efficiency level
Percent of customers
that experience
Average Savings *
Net cost (percent)
2018$
1 ...........................................................................................................................
2 ...........................................................................................................................
3 ...........................................................................................................................
85.8
98.7
99.2
* The savings represent the average LCC for affected consumers.
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¥95.3
¥885.4
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TABLE V–5—AVERAGE LCC AND PBP RESULTS BY EFFICIENCY LEVEL FOR REPRESENTATIVE UNIT 3: SINGLE-PHASE,
CSCR, 4-POLE, 1 HP
Average costs 2018$
Efficiency level
0
1
2
3
4
5
Total
installed
cost
...............................................................
...............................................................
...............................................................
...............................................................
...............................................................
...............................................................
First year’s
operating
cost
529.6
547.9
570.9
619.1
650.3
1,594.9
Lifetime
operating
cost
206.3
203.3
199.9
198.1
192.4
189.1
784.1
772.5
759.5
752.8
731.1
718.6
Simple
payback years
LCC
1,313.8
1,320.3
1,330.4
1,371.9
1,381.5
2,313.5
Average
lifetime years
........................
5.9
6.4
10.9
8.7
61.9
6.6
6.6
6.6
6.6
6.6
6.6
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is
measured relative to the baseline equipment.
TABLE V–6—LCC SAVINGS RELATIVE TO THE NO-NEW STANDARDS CASE EFFICIENCY DISTRIBUTION FOR
REPRESENTATIVE UNIT 3: SINGLE-PHASE, CSCR, 4-POLE, 1 HP
Life-cycle cost savings
Efficiency level
1
2
3
4
5
Percent of customers
that experience
Average savings *
Net cost (percent)
2018$
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
...........................................................................................................................
¥6.5
¥16.6
¥58.0
¥66.9
¥998.9
74.5
78.8
87.7
86.8
100.0
* The savings represent the average LCC for affected consumers.
TABLE V–7—AVERAGE LCC AND PBP RESULTS BY EFFICIENCY LEVEL FOR REPRESENTATIVE UNIT 4: POLYPHASE, 4POLE, 0.5 HP
Average costs 2018$
Efficiency level
0
1
2
3
Total
installed
cost
...............................................................
...............................................................
...............................................................
...............................................................
First year’s
operating
cost
374.2
431.7
481.3
1,150.6
Lifetime
operating
cost
107.3
104.1
102.1
99.4
510.8
495.5
486.0
473.4
Simple
payback years
LCC
885.0
927.2
967.3
1,624.0
Average
lifetime years
........................
17.9
20.6
99.0
8.4
8.4
8.4
8.4
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is
measured relative to the baseline equipment.
TABLE V–8—LCC SAVINGS RELATIVE TO THE NO-NEW STANDARDS CASE EFFICIENCY DISTRIBUTION FOR
REPRESENTATIVE UNIT 4: POLYPHASE, 4-POLE, 0.5 HP
Life-cycle cost savings
Efficiency level
Percent of customers
that experience
Average savings *
Net cost (percent)
2018$
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1 ...........................................................................................................................
2 ...........................................................................................................................
3 ...........................................................................................................................
88.2
99.8
100.0
¥42.1
¥80.5
¥737.2
* The savings represent the average LCC for affected consumers.
C. Proposed Determination
For this proposed determination, DOE
considered the amount of energy
savings conservation, technological
feasibility, and cost effectiveness of
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potential amended standards for small
electric motors at each considered EL.
(42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)(A) and 42 U.S.C. 6295 (n)(2))
As presented in the prior section, DOE
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projects that the average customer
purchasing a representative small
electric motor would experience an
increase in LCC at each evaluated
standards case as compared to the no
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B. Review Under Executive Orders
13771 and 13777
reform task force must attempt to
identify regulations that:
(1) Eliminate jobs, or inhibit job
creation;
(2) Are outdated, unnecessary, or
ineffective;
(3) Impose costs that exceed benefits;
(4) Create a serious inconsistency or
otherwise interfere with regulatory
reform initiatives and policies;
(5) Are inconsistent with the
requirements of the Information Quality
Act, or the guidance issued pursuant to
that Act, particularly those regulations
that rely in whole or in part on data,
information, or methods that are not
publicly available or that are
insufficiently transparent to meet the
standard for reproducibility; or
(6) Derive from or implement
Executive Orders or other Presidential
directives that have been subsequently
rescinded or substantially modified.
DOE initially concludes that this
proposed determination is consistent
with the directives set forth in these
executive orders. As discussed in this
document, DOE is proposing not to
amend the current energy conservation
standards for small electric motors and
this proposal is estimated to have no
cost impact. Therefore, if finalized as
proposed, this determination is
expected to be an E.O. 13771 other
action.
On January 30, 2017, the President
issued E.O. 13771, ‘‘Reducing
Regulation and Controlling Regulatory
Costs.’’ E.O. 13771 stated the policy of
the executive branch is to be prudent
and financially responsible in the
expenditure of funds, from both public
and private sources. E.O. 13771 stated it
is essential to manage the costs
associated with the governmental
imposition of private expenditures
required to comply with Federal
regulations.
Additionally, on February 24, 2017,
the President issued E.O. 13777,
‘‘Enforcing the Regulatory Reform
Agenda.’’ See 82 FR 12285 (March 1,
2017). E.O. 13777 required the head of
each agency to designate an agency
official as its Regulatory Reform Officer
(‘‘RRO’’). Each RRO oversees the
implementation of regulatory reform
initiatives and policies to ensure that
agencies effectively carry out regulatory
reforms, consistent with applicable law.
Further, E.O. 13777 requires the
establishment of a regulatory task force
at each agency. The regulatory task force
is required to make recommendations to
the agency head regarding the repeal,
replacement, or modification of existing
regulations, consistent with applicable
law. At a minimum, each regulatory
C. Review Under the Regulatory
Flexibility Act
The Regulatory Flexibility Act (5
U.S.C. 601 et seq.) requires preparation
of an initial regulatory flexibility
analysis (‘‘IRFA’’) and a final regulatory
flexibility analysis (‘‘FRFA’’) for any
rule that by law must be proposed for
public comment, unless the agency
certifies that the rule, if promulgated,
will not have a significant economic
impact on a substantial number of small
entities. As required by Executive Order
13272, ‘‘Proper Consideration of Small
Entities in Agency Rulemaking,’’ 67 FR
53461 (Aug. 16, 2002), DOE published
procedures and policies on February 19,
2003, to ensure that the potential
impacts of its rules on small entities are
properly considered during the
rulemaking process. 68 FR 7990. DOE
has made its procedures and policies
available on the Office of the General
Counsel’s website (https://energy.gov/gc/
office-general-counsel).
DOE reviewed this proposed
determination pursuant to the
Regulatory Flexibility Act and the
procedures and policies discussed
above. DOE has tentatively concluded
that, based on the data and available
information it has been able to review,
amended energy conservation standards
new standards case. The simple PBP for
the average of a representative small
electric motor customer at each EL is
projected to be generally longer than the
mean lifetime of the equipment. Based
on the above considerations, DOE has
tentatively determined that more
stringent amended energy conservation
standards for small electric motors
cannot satisfy the relevant statutory
requirements because such standards
would not be cost effective as required
and described under EPCA. (See 42
U.S.C. 6295(n)(2) and (o)(2)(B)(II))
DOE seeks comment on its analysis
indicating that increasing the stringency
of the energy conservation standards for
small electric motors are not cost
effective.
VI. Procedural Issues and Regulatory
Review
A. Review Under Executive Orders
12866
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This proposed determination has been
determined to be not significant for
purposes of Executive Order (‘‘E.O.’’)
12866, ‘‘Regulatory Planning and
Review.’’ 58 FR 51735 (Oct. 4, 1993). As
a result, the Office of Management and
Budget (‘‘OMB’’) did not review this
proposed determination.
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for small electric motors would not be
cost-effective. Therefore, DOE is not
proposing to amend the current energy
conservation standards for small electric
motors. On the basis of the foregoing,
DOE certifies that this proposed
determination, if adopted, will not have
a significant economic impact on a
substantial number of small entities.
Accordingly, DOE has not prepared an
IRFA for this proposed determination.
DOE will transmit this certification and
supporting statement of factual basis to
the Chief Counsel for Advocacy of the
Small Business Administration for
review under 5 U.S.C. 605(b).
D. Review Under the Paperwork
Reduction Act
Manufacturers of small electric
motors must certify to DOE that their
products comply with any applicable
energy conservation standards. In
certifying compliance, manufacturers
must test their equipment according to
the DOE test procedures, including any
amendments adopted for those test
procedures. DOE has established
regulations for the certification and
recordkeeping requirements for all
covered consumer products and
commercial equipment, including small
electric motors. 76 FR 12422 (March 7,
2011); 80 FR 5099 (Jan. 30, 2015). The
collection-of-information requirement
for the certification and recordkeeping
is subject to review and approval by
OMB under the Paperwork Reduction
Act (‘‘PRA’’). This requirement has been
approved by OMB under OMB control
number 1910–1400. Public reporting
burden for the certification is estimated
to average 30 hours per response,
including the time for reviewing
instructions, searching existing data
sources, gathering and maintaining the
data needed, and completing and
reviewing the collection of information.
Notwithstanding any other provision
of the law, no person is required to
respond to, nor shall any person be
subject to a penalty for failure to comply
with, a collection of information subject
to the requirements of the PRA, unless
that collection of information displays a
currently valid OMB Control Number.
The proposed determination, which
tentatively finds that amended energy
conservation standards for small electric
motors would not be cost effective,
impose no new information or record
keeping requirements. Accordingly, the
Office of Management and Budget
(OMB) clearance is not required under
the Paperwork Reduction Act. (44
U.S.C. 3501 et seq.)
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E. Review Under the National
Environmental Policy Act of 1969
DOE is analyzing this proposed action
in accordance with the National
Environmental Policy Act (‘‘NEPA’’)
and DOE’s NEPA implementing
regulations (10 CFR part 1021). DOE’s
regulations include a categorical
exclusion for actions which are
interpretations or rulings with respect to
existing regulations. 10 CFR part 1021,
subpart D, appendix A4. DOE
anticipates that this action qualifies for
categorical exclusion A4 because it is an
interpretation or ruling in regards to an
existing regulation and otherwise meets
the requirements for application of a
categorical exclusion. See 10 CFR
1021.410. DOE will complete its NEPA
review before issuing the final action.
F. Review Under Executive Order 13132
Executive Order 13132, ‘‘Federalism,’’
64 FR 43255 (Aug. 10, 1999), imposes
certain requirements on Federal
agencies formulating and implementing
policies or regulations that preempt
State law or that have federalism
implications. The Executive Order
requires agencies to examine the
constitutional and statutory authority
supporting any action that would limit
the policymaking discretion of the
States and to carefully assess the
necessity for such actions. The
Executive Order also requires agencies
to have an accountable process to
ensure meaningful and timely input by
State and local officials in the
development of regulatory policies that
have federalism implications. On March
14, 2000, DOE published a statement of
policy describing the intergovernmental
consultation process it will follow in the
development of such regulations. 65 FR
13735. As this proposed determination
does not amend the standards for small
electric motors, there is no impact on
the policymaking discretion of the
States. Therefore, no action is required
by Executive Order 13132.
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G. Review Under Executive Order 12988
With respect to the review of existing
regulations and the promulgation of
new regulations, section 3(a) of
Executive Order 12988, ‘‘Civil Justice
Reform,’’ imposes on Federal agencies
the general duty to adhere to the
following requirements: (1) Eliminate
drafting errors and ambiguity, (2) write
regulations to minimize litigation, (3)
provide a clear legal standard for
affected conduct rather than a general
standard, and (4) promote simplification
and burden reduction. 61 FR 4729 (Feb.
7, 1996). Regarding the review required
by section 3(a), section 3(b) of Executive
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Order 12988 specifically requires that
Executive agencies make every
reasonable effort to ensure that the
regulation (1) clearly specifies the
preemptive effect, if any, (2) clearly
specifies any effect on existing Federal
law or regulation, (3) provides a clear
legal standard for affected conduct
while promoting simplification and
burden reduction, (4) specifies the
retroactive effect, if any, (5) adequately
defines key terms, and (6) addresses
other important issues affecting clarity
and general draftsmanship under any
guidelines issued by the Attorney
General. Section 3(c) of Executive Order
12988 requires Executive agencies to
review regulations in light of applicable
standards in section 3(a) and section
3(b) to determine whether they are met
or it is unreasonable to meet one or
more of them. DOE has completed the
required review and determined that, to
the extent permitted by law, this
proposed determination meets the
relevant standards of Executive Order
12988.
H. Review Under the Unfunded
Mandates Reform Act of 1995
Title II of the Unfunded Mandates
Reform Act of 1995 (‘‘UMRA’’) requires
each Federal agency to assess the effects
of Federal regulatory actions on State,
local, and Tribal governments and the
private sector. Public Law 104–4, sec.
201 (codified at 2 U.S.C. 1531). For a
regulatory action likely to result in a
rule that may cause the expenditure by
State, local, and Tribal governments, in
the aggregate, or by the private sector of
$100 million or more in any one year
(adjusted annually for inflation), section
202 of UMRA requires a Federal agency
to publish a written statement that
estimates the resulting costs, benefits,
and other effects on the national
economy. (2 U.S.C. 1532(a), (b)) The
UMRA also requires a Federal agency to
develop an effective process to permit
timely input by elected officers of State,
local, and Tribal governments on a
‘‘significant intergovernmental
mandate,’’ and requires an agency plan
for giving notice and opportunity for
timely input to potentially affected
small governments before establishing
any requirements that might
significantly or uniquely affect them. On
March 18, 1997, DOE published a
statement of policy on its process for
intergovernmental consultation under
UMRA. 62 FR 12820. DOE’s policy
statement is also available at https://
energy.gov/sites/prod/files/gcprod/
documents/umra_97.pdf. This proposed
determination does not contain a
Federal intergovernmental mandate, nor
is it expected to require expenditures of
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$100 million or more in any one year by
the private sector. As a result, the
analytical requirements of UMRA do not
apply.
I. Review Under the Treasury and
General Government Appropriations
Act, 1999
Section 654 of the Treasury and
General Government Appropriations
Act, 1999 (Pub. L. 105–277) requires
Federal agencies to issue a Family
Policymaking Assessment for any rule
that may affect family well-being. This
proposed determination would not have
any impact on the autonomy or integrity
of the family as an institution.
Accordingly, DOE has concluded that it
is not necessary to prepare a Family
Policymaking Assessment.
J. Review Under Executive Order 12630
Pursuant to Executive Order 12630,
‘‘Governmental Actions and Interference
with Constitutionally Protected Property
Rights,’’ 53 FR 8859 (March 18, 1988),
DOE has determined that this proposed
determination would not result in any
takings that might require compensation
under the Fifth Amendment to the U.S.
Constitution.
K. Review Under the Treasury and
General Government Appropriations
Act, 2001
Section 515 of the Treasury and
General Government Appropriations
Act, 2001 (44 U.S.C. 3516, note)
provides for Federal agencies to review
most disseminations of information to
the public under information quality
guidelines established by each agency
pursuant to general guidelines issued by
OMB. OMB’s guidelines were published
at 67 FR 8452 (Feb. 22, 2002), and
DOE’s guidelines were published at 67
FR 62446 (Oct. 7, 2002). DOE has
reviewed this proposed determination
under the OMB and DOE guidelines and
has concluded that it is consistent with
applicable policies in those guidelines.
L. Review Under Executive Order 13211
Executive Order 13211, ‘‘Actions
Concerning Regulations That
Significantly Affect Energy Supply,
Distribution, or Use,’’ 66 FR 28355 (May
22, 2001), requires Federal agencies to
prepare and submit to the Office of
Information and Regulatory Affairs
(‘‘OIRA’’) at OMB, a Statement of Energy
Effects for any significant energy action.
A ‘‘significant energy action’’ is defined
as any action by an agency that
promulgates or is expected to lead to
promulgation of a final rule, and that (1)
is a significant regulatory action under
Executive Order 12866, or any successor
order; and (2) is likely to have a
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significant adverse effect on the supply,
distribution, or use of energy, or (3) is
designated by the Administrator of
OIRA as a significant energy action. For
any significant energy action, the agency
must give a detailed statement of any
adverse effects on energy supply,
distribution, or use should the proposal
be implemented, and of reasonable
alternatives to the action and their
expected benefits on energy supply,
distribution, and use.
Because this proposed determination
would not amend the current standards
for small electric motors, it is not a
significant energy action, nor has it been
designated as such by the Administrator
at OIRA. Accordingly, DOE has not
prepared a Statement of Energy Effects.
M. Review Under the Information
Quality Bulletin for Peer Review
On December 16, 2004, OMB, in
consultation with the Office of Science
and Technology Policy (‘‘OSTP’’),
issued its Final Information Quality
Bulletin for Peer Review (‘‘the
Bulletin’’). 70 FR 2664 (Jan. 14, 2005).
The Bulletin establishes that certain
scientific information shall be peer
reviewed by qualified specialists before
it is disseminated by the Federal
Government, including influential
scientific information related to agency
regulatory actions. The purpose of the
bulletin is to enhance the quality and
credibility of the Government’s
scientific information. Under the
Bulletin, the energy conservation
standards rulemaking analyses are
‘‘influential scientific information,’’
which the Bulletin defines as ‘‘scientific
information the agency reasonably can
determine will have, or does have, a
clear and substantial impact on
important public policies or private
sector decisions.’’ 70 FR 2667.
In response to OMB’s Bulletin, DOE
conducted formal in-progress peer
reviews of the energy conservation
standards development process and
analyses and has prepared a Peer
Review Report pertaining to the energy
conservation standards rulemaking
analyses. Generation of this report
involved a rigorous, formal, and
documented evaluation using objective
criteria and qualified and independent
reviewers to make a judgment as to the
technical/scientific/business merit, the
actual or anticipated results, and the
productivity and management
effectiveness of programs and/or
projects. The ‘‘Energy Conservation
Standards Rulemaking Peer Review
Report’’ dated February 2007 has been
disseminated and is available at: https://
www.energy.gov/eere/buildings/peerreview.
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VII. Public Participation
A. Submission of Comments
DOE will accept comments, data, and
information regarding this proposed
determination no later than the date
provided in the DATES section at the
beginning of this proposed
determination. Interested parties may
submit comments, data, and other
information using any of the methods
described in the ADDRESSES section at
the beginning of this document.
Submitting comments via https://
www.regulations.gov. The https://
www.regulations.gov web page will
require you to provide your name and
contact information. Your contact
information will be viewable to DOE
Building Technologies staff only. Your
contact information will not be publicly
viewable except for your first and last
names, organization name (if any), and
submitter representative name (if any).
If your comment is not processed
properly because of technical
difficulties, DOE will use this
information to contact you. If DOE
cannot read your comment due to
technical difficulties and cannot contact
you for clarification, DOE may not be
able to consider your comment.
However, your contact information
will be publicly viewable if you include
it in the comment itself or in any
documents attached to your comment.
Any information that you do not want
to be publicly viewable should not be
included in your comment, nor in any
document attached to your comment.
Otherwise, persons viewing comments
will see only first and last names,
organization names, correspondence
containing comments, and any
documents submitted with the
comments.
Do not submit to https://
www.regulations.gov information for
which disclosure is restricted by statute,
such as trade secrets and commercial or
financial information (hereinafter
referred to as Confidential Business
Information (‘‘CBI’’)). Comments
submitted through https://
www.regulations.gov cannot be claimed
as CBI. Comments received through the
website will waive any CBI claims for
the information submitted. For
information on submitting CBI, see the
Confidential Business Information
section.
DOE processes submissions made
through https://www.regulations.gov
before posting. Normally, comments
will be posted within a few days of
being submitted. However, if large
volumes of comments are being
processed simultaneously, your
comment may not be viewable for up to
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several weeks. Please keep the comment
tracking number that https://
www.regulations.gov provides after you
have successfully uploaded your
comment.
Submitting comments via email, hand
delivery/courier, or postal mail.
Comments and documents submitted
via email, hand delivery/courier, or
postal mail also will be posted to https://
www.regulations.gov. If you do not want
your personal contact information to be
publicly viewable, do not include it in
your comment or any accompanying
documents. Instead, provide your
contact information in a cover letter.
Include your first and last names, email
address, telephone number, and
optional mailing address. The cover
letter will not be publicly viewable as
long as it does not include any
comments.
Include contact information each time
you submit comments, data, documents,
and other information to DOE. If you
submit via postal mail or hand delivery/
courier, please provide all items on a
CD, if feasible, in which case it is not
necessary to submit printed copies. No
telefacsimiles (faxes) will be accepted.
Comments, data, and other
information submitted to DOE
electronically should be provided in
PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (‘‘ASCII’’)
file format. Provide documents that are
not secured, that are written in English,
and that are free of any defects or
viruses. Documents should not contain
special characters or any form of
encryption and, if possible, they should
carry the electronic signature of the
author.
Campaign form letters. Please submit
campaign form letters by the originating
organization in batches of between 50 to
500 form letters per PDF or as one form
letter with a list of supporters’ names
compiled into one or more PDFs. This
reduces comment processing and
posting time.
Confidential Business Information.
Pursuant to 10 CFR 1004.11, any person
submitting information that he or she
believes to be confidential and exempt
by law from public disclosure should
submit via email, postal mail, or hand
delivery/courier two well-marked
copies: One copy of the document
marked ‘‘confidential’’ including all the
information believed to be confidential,
and one copy of the document marked
‘‘non-confidential’’ with the information
believed to be confidential deleted.
Submit these documents via email or on
a CD, if feasible. DOE will make its own
determination about the confidential
status of the information and treat it
according to its determination.
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It is DOE’s policy that all comments
may be included in the public docket,
without change and as received,
including any personal information
provided in the comments (except
information deemed to be exempt from
public disclosure).
B. Issues on Which DOE Seeks Comment
khammond on DSKJM1Z7X2PROD with PROPOSALS4
Although DOE welcomes comments
on any aspect of this proposal, DOE is
particularly interested in receiving
comments and views of interested
parties concerning the following issues:
1. DOE seeks comment on the
selection of representative equipment
classes for CSCR and polyphase motors
and the tentative determination that
more stringent energy conservation
standards for CSIR motors are not
technologically feasible.
2. DOE seeks comment on the
methodologies employed in the
engineering analysis, specifically
regarding the adoption of the motor
designs and associated efficiency levels
considered in the March 2010 Final
Rule analysis as the basis for this
proposed determination.
3. DOE seeks input on whether and
how the costs estimated for motor
designs considered in the March 2010
Final Rule have changed since the time
of that analysis. DOE also requests
information on the investments
(including related costs) necessary to
incorporate specific design options,
including, but not limited to, costs
VerDate Sep<11>2014
17:32 Apr 30, 2020
Jkt 250001
related to new or modified tooling (if
any), materials, engineering and
development efforts to implement each
design option, and manufacturing/
production impacts.
4. DOE seeks input on implementing
a similar scaling methodology as that
used for the March 2010 Final Rule in
this NOPD.
5. DOE seeks comment on the
methodology and data used for
estimating end-user prices for small
electric motors.
6. DOE seeks comments on how
whether additions or changes should be
made to the energy use analysis as well
as any data supporting alternate inputs
to characterize the variability in annual
energy consumption for small electric
motors.
7. DOE seeks comment on the
approach used for estimating
distribution of consumers of small
electric motors across applications and
sectors, as well as any data supporting
the use of alternate distributions.
8. DOE seeks comment on the
methodology used for estimating the
distribution of motor load for each
application and sector, as well as any
data supporting alternate distributions.
9. DOE seeks comment on the
methodology used to estimate annual
operating hours, as well as any data
supporting alternate distribution of
operating hours by application and
sector.
10. DOE seeks comment on the
methodology used to estimate
PO 00000
Frm 00028
Fmt 4701
Sfmt 9990
installation costs as well as any data
supporting alternate installation cost
estimates.
11. DOE seeks comment on the
assumptions for estimating repair and
maintenance costs as well as any data
supporting alternate repair and
maintenance cost estimates.
12. DOE seeks comment on the
methodology it used for estimating
small electric motor lifetimes, as well as
any data supporting alternate values for
these lifetimes.
13. DOE seeks comment on its
analysis indicating that increasing the
stringency of the energy conservation
standards for small electric motors are
not cost effective.
14. Additionally, DOE welcomes
comments on other issues relevant to
the conduct of this rulemaking that may
not specifically be identified in this
document.
VIII. Approval of the Office of the
Secretary
The Secretary of Energy has approved
publication of this proposed
determination.
Signed in Washington, DC, on April 6,
2020.
Daniel R Simmons,
Assistant Secretary for Energy, Efficiency and
Renewable Energy.
[FR Doc. 2020–08319 Filed 4–29–20; 8:45 am]
BILLING CODE 6450–01–P
E:\FR\FM\30APP4.SGM
30APP4
Agencies
[Federal Register Volume 85, Number 84 (Thursday, April 30, 2020)]
[Proposed Rules]
[Pages 24146-24172]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2020-08319]
[[Page 24145]]
Vol. 85
Thursday,
No. 84
April 30, 2020
Part III
Department of Energy
-----------------------------------------------------------------------
10 CFR Part 431
Energy Conservation Program: Energy Conservation Standards for Small
Electric Motors; Proposed Rule
Federal Register / Vol. 85 , No. 84 / Thursday, April 30, 2020 /
Proposed Rules
[[Page 24146]]
-----------------------------------------------------------------------
DEPARTMENT OF ENERGY
10 CFR Part 431
[EERE-2019-BT-STD-0008]
RIN 1904-AD29
Energy Conservation Program: Energy Conservation Standards for
Small Electric Motors
AGENCY: Office of Energy Efficiency and Renewable Energy, Department of
Energy.
ACTION: Notification of proposed determination and request for comment.
-----------------------------------------------------------------------
SUMMARY: The Energy Policy and Conservation Act of 1975, as amended,
prescribes energy conservation standards for various consumer products
and certain commercial and industrial equipment, including small
electric motors. EPCA also requires the Secretary of Energy to
periodically determine whether more-stringent, amended standards would
be technologically feasible and cost effective, and would result in
significant conservation of energy. In this document, DOE has
tentatively determined that more stringent small electric motors
standards would not be cost effective, and, thus, is not proposing to
amend its energy conservation standards for this equipment. DOE
requests comment on this proposed determination and associated analyses
and results.
DATES: DOE will accept comments, data, and information regarding this
notification of proposed determination before, but no later than June
29, 2020. See section VII, ``Public Participation,'' for details.
ADDRESSES: Interested persons are encouraged to submit comments using
the Federal eRulemaking Portal at https://www.regulations.gov. Follow
the instructions for submitting comments. Alternatively, interested
persons may submit comments, identified by docket number EERE-2019-BT-
STD-0008, by any of the following methods:
(1) Federal eRulemaking Portal: https://www.regulations.gov. Follow
the instructions for submitting comments.
(2) Email: [email protected]. Include the
docket number EERE-2019-BT-STD-0008 in the subject line of the message.
(3) Postal Mail: Appliance and Equipment Standards Program, U.S.
Department of Energy, Building Technologies Office, Mailstop EE-5B,
1000 Independence Avenue SW., Washington, DC, 20585-0121. Telephone:
(202) 287-1445. If possible, please submit all items on a compact disc
(``CD''), in which case it is not necessary to include printed copies.
(4) Hand Delivery/Courier: Appliance and Equipment Standards
Program, U.S. Department of Energy, Building Technologies Office, 950
L'Enfant Plaza SW, 6th Floor, Washington, DC, 20024. Telephone: (202)
586-6636. If possible, please submit all items on a CD, in which case
it is not necessary to include printed copies.
No telefacsimilies (``faxes'') will be accepted. For detailed
instructions on submitting comments and additional information on the
rulemaking process, see section VII of this document.
Docket: The docket for this activity, which includes Federal
Register notices, comments, and other supporting documents/materials,
is available for review at https://www.regulations.gov. All documents in
the docket are listed in the https://www.regulations.gov index. However,
not all documents listed in the index may be publicly available, such
as information that is exempt from public disclosure.
The docket web page can be found at: https://www.regulations.gov/docket?D=EERE-2019-BT-STD-0008. The docket web page contains
instructions on how to access all documents, including public comments,
in the docket. See section VII for information on how to submit
comments through https://www.regulations.gov.
FOR FURTHER INFORMATION CONTACT: Mr. Jeremy Dommu, U.S. Department of
Energy, Office of Energy Efficiency and Renewable Energy, Building
Technologies Office, EE-5B, 1000 Independence Avenue SW., Washington,
DC, 20585-0121. Email: [email protected].
Mr. Michael Kido, U.S. Department of Energy, Office of the General
Counsel, GC-33, 1000 Independence Avenue SW., Washington, DC, 20585-
0121. Telephone: (202) 586-8145. Email: [email protected].
For further information on how to review the docket, contact the
Appliance and Equipment Standards Program staff at (202) 287-1445 or by
email: [email protected].
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Synopsis of the Proposed Determination
II. Introduction
A. Authority and Background
1. Current Standards
2. History of Standards Rulemakings for Small Electric Motors
III. General Discussion
A. Scope of Coverage and Equipment Classes
B. Test Procedure
C. Technological Feasibility
1. General
2. Maximum Technologically Feasible Levels
D. Energy Savings
E. Cost Effectiveness
IV. Methodology and Discussion of Related Comments
A. Market and Technology Assessment
1. Scope of Coverage
2. Equipment Classes
3. Technology Options for Efficiency Improvement
B. Screening Analysis
C. Engineering Analysis
1. Summary of Significant Data Sources
2. Representative Equipment Classes
3. Engineering Analysis Methodology
4. Cost
5. Scaling Relationships
D. Markups Analysis
E. Energy Use Analysis
1. Consumer Sample
2. Motor Input Power
3. Annual Operating Hours
F. Life-Cycle Cost and Payback Period Analysis
1. Equipment Cost
2. Installation Cost
3. Annual Energy Consumption
4. Energy Prices
5. Maintenance and Repair Costs
6. Motor Lifetime
7. Discount Rates
8. Efficiency Distribution in the No-New-Standards Case
9. Payback Period Analysis
G. Other Comments Received
V. Analytical Results and Conclusions
A. Energy Savings
B. Cost Effectiveness
C. Proposed Determination
VI. Procedural Issues and Regulatory Review
A. Review Under Executive Orders 12866
B. Review Under Executive Orders 13771 and 13777
C. Review Under the Regulatory Flexibility Act
D. Review Under the Paperwork Reduction Act
E. Review Under the National Environmental Policy Act of 1969
F. Review Under Executive Order 13132
G. Review Under Executive Order 12988
H. Review Under the Unfunded Mandates Reform Act of 1995
I. Review Under the Treasury and General Government
Appropriations Act, 1999
J. Review Under Executive Order 12630
K. Review Under the Treasury and General Government
Appropriations Act, 2001
L. Review Under Executive Order 13211
M. Review Under the Information Quality Bulletin for Peer Review
VII. Public Participation
A. Submission of Comments
B. Issues on Which DOE Seeks Comment
VIII. Approval of the Office of the Secretary
[[Page 24147]]
I. Synopsis of the Proposed Determination
Title III, Part C \1\ of the Energy Policy and Conservation Act, as
amended (``EPCA''),\2\ established the Energy Conservation Program for
Certain Industrial Equipment, (42 U.S.C. 6311-6317), which includes
small electric motors, the subject of this notification of proposed
determination (``NOPD'').
---------------------------------------------------------------------------
\1\ For editorial reasons, upon codification in the U.S. Code,
Part C was re-designated Part A-1.
\2\ All references to EPCA in this document refer to the statute
as amended through America's Water Infrastructure Act of 2018,
Public Law 115-270 (October 23, 2018).
---------------------------------------------------------------------------
DOE is issuing this NOPD pursuant to EPCA's requirement that not
later than 6 years after issuance of any final rule establishing or
amending a standard, DOE must publish either a notification of
determination that standards for the product do not need to be amended,
or a notice of proposed rulemaking (``NOPR'') including new proposed
energy conservation standards (proceeding to a final rule, as
appropriate). (42 U.S.C. 6316(a); 42 U.S.C. 6295(m))
For this proposed determination, DOE analyzed the small electric
motors currently subject to the standards found at title 10 of the Code
of Federal Regulations (``CFR'') part 431. See 10 CFR 431.446. Of these
motors, DOE first analyzed the technological feasibility of more
efficient small electric motors. For currently available small electric
motors with efficiencies exceeding the levels of the current energy
conservation standards, DOE preliminarily determined that more
stringent standards would be technologically feasible. For these small
electric motors, DOE evaluated whether more stringent standards would
also be cost effective by conducting preliminary life-cycle cost
(``LCC'') and payback period (``PBP'') analyses.
Based on these analyses, as summarized in section V of this
document, DOE has preliminarily determined that more stringent energy
conservation standards would not be cost effective. Therefore, DOE has
tentatively determined that the current standards for small electric
motors do not need to be amended.
II. Introduction
The following section briefly discusses the statutory authority
underlying this proposed determination, as well as some of the relevant
historical background related to the establishment of standards for
small electric motors.
A. Authority and Background
EPCA authorizes DOE to regulate the energy efficiency of a number
of consumer products and certain industrial equipment. Title III, Part
C of EPCA includes the small electric motors that are the subject of
this proposed determination. (42 U.S.C. 6311(13)(G)) As discussed in
the following paragraphs, EPCA directed DOE to establish test
procedures and prescribe energy conservation standards for small
electric motors. (42 U.S.C. 6317(b))
The energy conservation program under EPCA consists essentially of
four parts: (1) Testing, (2) labeling, (3) Federal energy conservation
standards, and (4) certification and enforcement procedures. Relevant
provisions of the Act specifically include definitions (42 U.S.C.
6311), energy conservation standards (42 U.S.C. 6313), test procedures
(42 U.S.C. 6314), labeling provisions (42 U.S.C. 6315), and the
authority to require information and reports from manufacturers (42
U.S.C. 6316).
EPCA directed DOE to establish a test procedure for those small
electric motors for which DOE determined that energy conservation
standards would (1) be technologically feasible and economically
justified and (2) result in significant energy savings. (42 U.S.C.
6317(b)(1)) Manufacturers of covered equipment must use the Federal
test procedures as the basis for: (1) Certifying to DOE that their
equipment complies with the applicable energy conservation standards
adopted pursuant to EPCA (42 U.S.C. 6316(a); 42 U.S.C. 6295(s)), and
(2) making representations about the efficiency of that equipment (42
U.S.C. 6314(d)). The DOE test procedures for small electric motors
appear at 10 CFR part 431, subpart X.
EPCA further directed DOE to prescribe energy conservation
standards for those small electric motors for which test procedures
were established. (42 U.S.C. 6317(b)(2)) Additionally, EPCA prescribed
that any such standards shall not apply to any small electric motor
which is a component of a covered product under 42 U.S.C. 6292(a) or
covered equipment under 42 U.S.C. 6311 of EPCA. (42 U.S.C. 6317(b)(3))
Federal energy efficiency requirements for covered equipment
established under EPCA generally supersede State laws and regulations
concerning energy conservation testing, labeling, and standards. (See
42 U.S.C. 6316(a) and (b); 42 U.S.C. 6297(a)-(c)).
EPCA requires that, not later than 6 years after the issuance of
any final rule establishing or amending a standard, DOE evaluate the
energy conservation standards for each type of covered equipment,
including those at issue here, and publish either a notification of
determination that the standards do not need to be amended, or a NOPR
that includes new proposed energy conservation standards (proceeding to
a final rule, as appropriate). (42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)). EPCA further provides that, not later than 3 years after
the issuance of a final determination not to amend standards, DOE must
make a new determination not to amend the standards or issue a NOPR
including new proposed energy conservation standards. (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(3)(B)) DOE must make the analysis on which a
determination is based publicly available and provide an opportunity
for written comment. (42 U.S.C. 6316(a); 42 U.S.C. 6295(m)(2))
In making a determination that the standards do not need to be
amended, DOE must evaluate under the criteria of 42 U.S.C. 6295(n)(2)
whether amended standards (1) will result in significant conservation
of energy, (2) are technologically feasible, and (3) are cost effective
as described under 42 U.S.C. 6295(o)(2)(B)(i)(II). (42 U.S.C. 6316(a);
42 U.S.C. 6295(m)(1)(A) and 42 U.S.C. 6295 (n)(2)) Under 42 U.S.C.
6295(o)(2)(B)(i)(II), an evaluation of cost effectiveness requires DOE
to consider savings in operating costs throughout the estimated average
life of the covered product in the type (or class) compared to any
increase in the price of, or in the initial charges for, or maintenance
expenses of, the covered products which are likely to result from the
imposition of the standard.
DOE is publishing this document in accordance with its authority
under EPCA, and in satisfaction of its statutory requirement under
EPCA.
1. Current Standards
The current energy conservation standards for small electric motors
are located in title 10 CFR 431.446, and are presented in Table II-1
and Table II-2.
[[Page 24148]]
Table II-1--Federal Energy Conservation Standards for Polyphase Small Electric Motors
----------------------------------------------------------------------------------------------------------------
Average full load efficiency
-----------------------------------------------
Motor horsepower/standard kilowatt equivalent Open motors (number of poles)
-----------------------------------------------
6 4 2
----------------------------------------------------------------------------------------------------------------
0.25/0.18....................................................... 67.5 69.5 65.6
0.33/0.25....................................................... 71.4 73.4 69.5
0.5/0.37........................................................ 75.3 78.2 73.4
0.75/0.55....................................................... 81.7 81.1 76.8
1/0.75.......................................................... 82.5 83.5 77.0
1.5/1.1......................................................... 83.8 86.5 84.0
2/1.5........................................................... N/A 86.5 85.5
3/2.2........................................................... N/A 86.9 85.5
----------------------------------------------------------------------------------------------------------------
Table II-2--Federal Energy Conservation Standards for Capacitor-Start Induction-Run and Capacitor-Start
Capacitor-Run Small Electric Motors
----------------------------------------------------------------------------------------------------------------
Average full load efficiency
-----------------------------------------------
Motor horsepower/standard kilowatt equivalent Open motors (number of poles)
-----------------------------------------------
6 4 2
----------------------------------------------------------------------------------------------------------------
0.25/0.18....................................................... 62.2 68.5 66.6
0.33/0.25....................................................... 66.6 72.4 70.5
0.5/0.37........................................................ 76.2 76.2 72.4
0.75/0.55....................................................... 80.2 81.8 76.2
1/0.75.......................................................... 81.1 82.6 80.4
1.5/1.1......................................................... N/A 83.8 81.5
2/1.5........................................................... N/A 84.5 82.9
3/2.2........................................................... N/A N/A 84.1
----------------------------------------------------------------------------------------------------------------
2. History of Standards Rulemakings for Small Electric Motors
In 2006, DOE determined that energy conservation standards for
certain single-phase, capacitor-start, induction-run, small electric
motors are technologically feasible and economically justified, and
would result in significant energy savings. 71 FR 38799 (July 10,
2006). Later, in 2010, DOE issued a final rule (the ``March 2010 Final
Rule'') establishing energy conservation standards for small electric
motors manufactured starting on March 9, 2015.\3\ 75 FR 10874 (March 9,
2010).
---------------------------------------------------------------------------
\3\ In a technical correction, DOE revised the compliance date
for energy conservation standards to March 9, 2015, for each small
electric motor manufactured (alone or as a component of another
piece of non-covered equipment), or March 9, 2017, in the case of a
small electric motor which requires listing or certification by a
nationally recognized safety testing laboratory. 75 FR 17036 (April
5, 2010).
---------------------------------------------------------------------------
In April 2019, DOE published a request for information (``April
2019 ECS RFI'') to solicit input and data from interested parties to
aid in the development of the technical analyses for the determination
of whether new and/or amended standards for small electric motors are
warranted. 84 FR 14027 (April 9, 2019). The comment period was re-
opened in response to a request from an interested party, see NEMA, No.
4 at p. 1, until June 7, 2019. See 84 FR 25203 (May 31, 2019).
DOE received a number of comments from interested parties in
response to the April 2019 ECS RFI.\4\ The commenters that provided
relevant comments are listed in Table II-3.\5\
---------------------------------------------------------------------------
\4\ The comments received in response to the April 2019 ECS RFI
are included in the docket for this action and can be found at
https://www.regulations.gov/docket?D=EERE-2019-BT-STD-0008.
\5\ DOE received a comment unrelated to small electric motors
(i.e., Sims, No. 2), which was not addressed.
Table II-3--April 2019 ECS RFI Written Comments
------------------------------------------------------------------------
Reference in this
Commenter/organization(s) NOPD Organization type
------------------------------------------------------------------------
ABB Motors and Mechanical Inc... ABB............... Manufacturer.
Air-Conditioning, Heating, and AHRI and AHAM..... Trade
Refrigeration Institute Associations.
(``AHRI'') and Association of
Home Appliance Manufacturers
(``AHAM'').
Appliance Standards Awareness ASAP, et al....... Advocacy Groups
Project (``ASAP''), Alliance to and State
Save Energy, American Council Governmental
for an Energy-Efficient Agency.
Economy, the California Energy
Commission, the Natural
Resources Defense Council, and
Northwest Energy Efficiency
Alliance.
Belanger, Zach.................. Belanger.......... Individual.
California Investor-Owned CA IOUs........... Utilities.
Utilities (``CA IOUs'')--
Pacific Gas and Electric
Company, San Diego Gas and
Electric, and Southern
California Edison.
Kasimos, Anastasia.............. Kasimos........... Individual.
Lennox International Inc........ Lennox............ Manufacturer.
Lenze Americas.................. Lenze Americas.... Manufacturer.
[[Page 24149]]
National Electrical NEMA.............. Trade Association.
Manufacturers Association
(``NEMA'').
The Institute for Policy NYU............... Non-Governmental
Integrity at New York Organization.
University (``NYU'') School of
Law.
Palubin, Erin................... Palubin........... Individual.
Sierra Club & Earthjustice...... Sierra Club & Advocacy Groups.
Earthjustice.
------------------------------------------------------------------------
DOE also received a number of comments related to certification,
compliance and enforcement issues, but these comments fell outside the
scope of this rulemaking and are not addressed in this document. The
remaining relevant comments and DOE's responses are provided in the
appropriate sections of this document.
III. General Discussion
A. Scope of Coverage and Equipment Classes
This document covers equipment meeting the definition of ``small
electric motor,'' as codified in 10 CFR 431.442. ``Small electric
motor'' means a ``NEMA general purpose alternating current single-speed
induction motor, built in a two-digit frame number series in accordance
with NEMA Standards Publication MG1-1987, including IEC metric
equivalent motors.'' 10 CFR 431.442.\6\ The scope of coverage for these
motors is discussed in further detail in section IV.A.1.
---------------------------------------------------------------------------
\6\ The term ``IEC'' refers to the International
Electrotechnical Commission.
---------------------------------------------------------------------------
When evaluating and establishing energy conservation standards, DOE
divides covered equipment into equipment classes by the type of energy
used, or by capacity or other performance-related features that justify
a different standard. (42 U.S.C. 6316(a); 42 U.S.C. 6295(q)) In
determining whether capacity or another performance-related feature
justifies a different standard, DOE must consider such factors as the
utility of the feature to the consumer and other factors DOE deems
appropriate. (Id.) The equipment classes for this proposed
determination are discussed further in section IV.A.2.
B. Test Procedure
As noted, EPCA directed DOE to establish a test procedure for those
small electric motors for which DOE determined that energy conservation
standards would (1) be technologically feasible and economically
justified and (2) result in significant energy savings. (42 U.S.C.
6317(b)(1)) In a final rule published on July 7, 2009, DOE adopted test
procedures for small electric motors. 74 FR 32059.
Subsequently, DOE updated the test procedures for small electric
motors on May 4, 2012 (the ``May 2012 test procedure final rule''). 77
FR 26608. The existing test procedures for small electric motors
incorporate certain industry standards from the Institute of Electrical
and Electronics Engineers (``IEEE'') and Canadian Standards Association
(``CSA''), as listed in Table III-1.
Table III-1--Industry Standards Currently Incorporated by Reference for
Small Electric Motors
------------------------------------------------------------------------
Equipment description Industry test procedure
------------------------------------------------------------------------
Single-phase small electric motors........... IEEE 114-2010.
CSA C747-09.
Polyphase small electric motors less than or IEEE 112-2004 Test Method
equal to 1 horsepower. A.
CSA C747-09.
Polyphase small electric motors greater than IEEE 112-2004 Test Method
1 horsepower. B.
CSA C390-10.
------------------------------------------------------------------------
In 2017, DOE solicited the public for information pertaining to the
test procedures for small electric motors and electric motors. 82 FR
35468 (July 31, 2017) (the ``July 2017 test procedure RFI''). In the
July 2017 test procedure RFI, DOE sought public comments, data, and
information on all aspects of, and any issues or problems with, the
existing DOE test procedure for small electric motors, including on any
needed updates or revisions. DOE also discussed electric motor
categories (as defined at 10 CFR 431.12) that may be considered in a
future DOE test procedure. 82 FR 35470-35474.
In April 2019, DOE proposed amending its test procedure for small
electric motors. 84 FR 17004 (April 23, 2019). In that NOPR, DOE
proposed harmonizing its procedure with industry practice by
incorporating a new industry standard that manufacturers would be
permitted to use in addition to the three industry standards currently
incorporated by reference as options for use when testing small
electric motor efficiency. 84 FR 17013-17014. In addition, DOE proposed
to adopt industry provisions related to the test conditions to ensure
the comparability of test results for small electric motors. 84 FR
17014-17018. DOE is currently evaluating the comments received on these
proposals.
C. Technological Feasibility
1. General
In evaluating potential amendments to energy conservation
standards, DOE conducts a screening analysis based on information
gathered on all current technology options and prototype designs that
could improve the efficiency of the product or equipment at issue. As
the first step in such an analysis, DOE develops a list of technology
options for consideration in consultation with manufacturers, design
engineers, and other interested parties. DOE then determines which of
those means for improving efficiency are technologically feasible. DOE
considers technologies incorporated in
[[Page 24150]]
commercially available equipment or in working prototypes to be
technologically feasible. See 10 CFR part 430, subpart C, appendix A,
section 4(a)(4)(i).
After DOE has determined that particular options are
technologically feasible, it further evaluates each technology option
in light of the following additional screening criteria: (1)
Practicability to manufacture, install, and service; (2) adverse
impacts on equipment utility or availability; and (3) adverse impacts
on health or safety. See 10 CFR part 430, subpart C, appendix A,
section 4(a)(4)(ii)-(iv).
Additionally, it is DOE policy not to include in its analysis any
proprietary technology that is a unique pathway to achieving a certain
efficiency level. Section IV.B of this proposed determination discusses
the results of the screening analysis for small electric motors,
particularly the designs DOE considered, those it screened out, and
those that are the basis for the proposed determination. In this NOPD,
based on its review of the market and comments received in response to
the April 2019 ECS RFI, DOE has tentatively determined that no
significant technical advancements in induction motor technology have
been made since publication of the March 2010 Final Rule.
2. Maximum Technologically Feasible Levels
When DOE evaluates the potential for new or amended standards, DOE
must determine the maximum improvement in energy efficiency or maximum
reduction in energy use that is technologically feasible for such
equipment. Accordingly, in the engineering analysis, DOE determined the
maximum technologically feasible (``max tech'') improvements in energy
efficiency for small electric motors. DOE defines a max-tech efficiency
level to represent the theoretical maximum possible efficiency if all
available design options are incorporated in a model. In applying these
design options, DOE would only include those that are compatible with
each other such that when combined, they would represent the
theoretical maximum possible efficiency. In many cases, the max-tech
efficiency level is not commercially available because it is not
economically feasible. The max-tech levels that DOE has determined are
described in section IV.C of this proposed determination.
D. Energy Savings
In determining whether to amend the current energy conservation
standards for small electric motors, DOE must assess whether amended
standards will result in significant conservation of energy. (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(1)(A). See also 42 U.S.C. 6295(n)(2).) For
each considered efficiency level, DOE estimated the lifetime energy
savings for small electric motors purchased in the expected compliance
year for potential standards. See section IV.E for more details for the
energy use analysis.
The term ``significant'' is not defined in EPCA. DOE notes that the
meaning of this term is currently under consideration. See 84 FR 3910,
3922 (Feb. 13, 2019). DOE is also considering whether to apply a two-
pronged threshold approach for determining whether significant energy
savings is present in a given standards rulemaking scenario. See id. at
84 FR 3921-3925. In the present case, when applying the criteria of 42
U.S.C. 6295(n)(2) to determine whether to amend the current standards,
DOE analyzed the available data and has tentatively determined that
amended standards would not be cost-effective as required under EPCA.
(42 U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A) and 42 U.S.C. (n)(2)(C))
See also sections IV.F and V.B (discussing in greater detail DOE's
analysis of the available data in reaching this tentative
determination). Based on available data, DOE's analysis indicates that
the LCC of a small electric motor would increase with more stringent
standards and the payback period to recoup the relevant costs from
investing in more stringent standards would, in most cases, likely
exceed the expected lifetimes of the different classes of small
electric motors DOE examined in its analysis--pointing to the inability
of potential standards to satisfy the cost-effectiveness requirement
under EPCA. Consequently, because DOE's analysis indicates that the
three mandatory prerequisites that need to be satisfied to permit DOE
to move forward with a determination to amend its current standards
cannot be met, DOE did not separately determine whether the potential
energy savings would be significant for purposes of the statutory test
that applies. See 42 U.S.C. 6295(n)(2) (requiring that amended
standards must result in significant conservation energy, be
technologically feasible, and be cost-effective as provided in 42
U.S.C. 6295(o)(2)(B)(i)(II)).\7\
---------------------------------------------------------------------------
\7\ Under 42 U.S.C. 6295(o)(2)(B)(i)(II), DOE must consider
whether ``the savings in operating costs throughout the estimated
average life of the covered product in the type (or class) compared
to any increase in the price of, or in the initial charges for, or
maintenance expenses of, the covered products which are likely to
result from the imposition of the standard.''
---------------------------------------------------------------------------
E. Cost Effectiveness
EPCA requires DOE to consider the cost effectiveness of amended
standards in the context of the savings in operating costs throughout
the estimated average life of the covered equipment class compared to
any increase in the price of, or in the initial charges for, or
maintenance expenses of, the covered equipment that are likely to
result from a standard. (42 U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A))
In considering cost effectiveness, DOE conducted LCC and PBP
analyses. The LCC is the sum of the initial price of equipment
(including its installation) and the operating expense (including
energy, maintenance, and repair expenditures) discounted over the
lifetime of the equipment. The LCC analysis requires a variety of
inputs, such as equipment prices, equipment energy consumption, energy
prices, maintenance and repair costs, equipment lifetime, and discount
rates appropriate for consumers. To account for uncertainty and
variability in specific inputs, such as equipment lifetime and discount
rate, DOE uses a distribution of values, with probabilities attached to
each value.
The PBP is the estimated amount of time (in years) it takes
consumers to recover the increased purchase cost (including
installation) of more-efficient equipment through lower operating
costs. DOE calculates the PBP by dividing the change in purchase cost
due to a more-stringent standard by the change in annual operating cost
for the year that standards are assumed to take effect.
For its LCC and PBP analyses, DOE assumes that consumers would
purchase the covered equipment in the first year of compliance with any
amended standards. The LCC savings for the considered efficiency levels
are calculated relative to the case that reflects projected market
trends in the absence of amended standards. DOE's LCC and PBP analysis
is discussed in further detail in section IV.F of this proposed
determination.
DOE's LCC and PBP analyses indicate that the LCC would increase
with more stringent standards and that the payback period to recoup the
relevant costs from investing in more stringent standards would, in
most cases, likely exceed the expected lifetimes of the different
classes of small electric motors DOE examined in its analysis.\8\
Therefore,
[[Page 24151]]
DOE has tentatively determined that amended standards would not be
cost-effective as required under EPCA. (42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)(A) and 42 U.S.C. 6295(n)(2)(C)) See also sections IV.F and
V.B (discussing in greater detail DOE's analysis of the available data
in reaching this tentative determination).
---------------------------------------------------------------------------
\8\ For polyphase small electric motors, the PBP exceeded the
lifetime of the unit at all ELs considered. For CSCR small electric
motors, the PBP at EL 1 and EL 2 was comparable to and/or lower than
the lifetime of the unit (PBP of 6.7; 7.0; 5.9; and 6.4 years
compared to an average lifetime of 6.6 years). For all equipment
classes and at all ELs considered, the LCC increased with more
stringent standards. (See results in section V.B and chapter 8 of
the NOPD TSD for more details)
---------------------------------------------------------------------------
IV. Methodology and Discussion of Related Comments
This section addresses the analyses DOE performed for this proposed
determination regarding small electric motors. Separate subsections
address each component of DOE's analyses and responses to related
comments.
Lennox commented that DOE should carefully consider and exercise
caution to ensure that more stringent standards for small electric
motors provide significant energy savings and are economically
justified. (Lennox, No. 14 at p. 2) An individual commenter stated that
small electric motors energy conservation standards should be
considered a priority. (Kasimos, No. 9 at p. 1)
As discussed previously, EPCA requires that, not later than 6 years
after the issuance of any final rule establishing or amending a
standard, DOE evaluate the energy conservation standards for each type
of covered equipment, including those at issue here, and publish either
a notification of determination that the standards do not need to be
amended, or a NOPR that includes new proposed energy conservation
standards (proceeding to a final rule, as appropriate). (42 U.S.C.
6316(a); 42 U.S.C. 6295(m)(1)). In making a determination that the
standards do not need to be amended, DOE must evaluate whether amended
standards (1) will result in significant conservation of energy, (2)
are technologically feasible, and (3) are cost effective as described
under 42 U.S.C. 6295(o)(2)(B)(i)(II). (42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)(A); 42 U.S.C. 6295(n)(2)) The following discussion presents
DOE's evaluation and tentative determination as required under EPCA.
A. Market and Technology Assessment
DOE has conducted a preliminary market and technology assessment in
support of a proposed determination for small electric motors. The goal
of the market assessment is to develop a qualitative and quantitative
characterization of the small electric motors industry. This assessment
characterizes the market structure based on publicly available
information as well as data supplied by manufacturers and other
interested parties. The goal of the technology assessment is to develop
a list of technology options that manufacturers can use to improve the
efficiency of small electric motors.
For this proposed determination, DOE evaluated the small electric
motors currently subject to standards at 10 CFR 431.446. The following
section reviews the scope of coverage and the equipment classes used in
the development of the current energy conservation standards for small
electric motors and this proposed determination.
1. Scope of Coverage
By statute, a ``small electric motor'' is ``a NEMA general purpose
alternating-current single-speed induction motor, built in a two-digit
frame number series in accordance with NEMA Standards Publication MG 1-
1987.'' (42 U.S.C. 6311(13)(G)) DOE later clarified by regulation that
this definition also includes IEC metric equivalent motors.'' See 10
CFR 431.442. Equipment meeting this definition are within DOE's scope
of coverage but not all may be subject to DOE's current standards.
DOE's standards regulate the energy efficiency of those small
electric motors that fall within three topologies (i.e., arrangements
of component parts): Capacitor-start induction-run (``CSIR''),
capacitor-start capacitor-run (``CSCR''), and polyphase motors. See 10
CFR 431.446. EPCA prescribes that standards for small electric motors
do not apply to any small electric motor which is a component of a
covered product or covered equipment under EPCA. (42 U.S.C. 6317(b)(3))
DOE's current energy conservation standards only apply to small
electric motors manufactured alone or as a component of another piece
of non-covered equipment. 10 CFR 431.446(a).
Subpart X of 10 CFR part 431 includes energy conservation standards
and test procedures for the small electric motors listed in Table IV-1.
DOE is not proposing any changes to the scope of small electric motors
subject to energy conservation standards (i.e., ``scope of
applicability'').
Table IV-1--Small Electric Motors Currently Subject to Energy
Conservation Standards
[Manufactured alone or as a component of another piece of non-covered
equipment]
------------------------------------------------------------------------
Motor output
Motor topology Pole configuration power
------------------------------------------------------------------------
Single-phase
CSIR..................... 2,4,6 0.25-3 hp
(0.18-2.2 kW) *
CSCR..................... 2,4,6 0.25-3 hp
(0.18-2.2 kW)
Polyphase.................... 2,4,6 0.25-3 hp
(0.18-2.2 kW)
------------------------------------------------------------------------
Certain motor categories are not currently subject to standards. These
include:
Polyphase, 6-pole, 2 and 3 hp motors;
CSCR and CSIR, 6-pole, 1.5, 2, and 3 hp motors;
CSCR and CSIR, 4-pole, 3 hp motors.
* The values in parentheses are the equivalent metric ratings.
In response to the April 2019 ECS RFI, DOE received a number of
comments relevant to the scope of applicability of energy conservation
standards for small electric motors. Lennox, AHRI and AHAM supported
maintaining the existing standards scope for small electric motors.
(Lennox, No. 14 at p. 1; AHRI and AHAM, No. 12 at p. 2) AHRI and AHAM
also specifically opposed testing and regulating special and definite
purpose motors. They argued that regulating special and definite
purpose motors could: (1) Increase the cost of the motor
[[Page 24152]]
and of the finished product without necessarily improving its
performance and (2) significantly increase burden on original equipment
manufacturers (``OEMs'') if all manufacturers of products using special
and definite purpose motors were required to certify compliance with
standards for component parts. (AHRI and AHAM, No. 12 at p. 2-3) Lenze
Americas added that the scope of applicability for small electric motor
standards should not include non-continuous duty motors and motors that
are combined with high-efficiency gears. (Lenze Americas, No. 4 at p.
1)
As previously stated in section III.A, this document pertains only
to equipment meeting the definition of small electric motor, as
codified in 10 CFR 431.442, which includes general purpose motors, but
does not include special purpose and definite purpose motors because
they do not meet the definition of general purpose motors.\9\ In
addition, DOE notes that motors with non-continuous duty rating and
integral gears are not included in the category of NEMA general purpose
single-speed induction motor \10\ and are therefore not subject to the
energy conservation standards prescribed at 10 CFR 431.446.
---------------------------------------------------------------------------
\9\ See 42 U.S.C. 6311(13)(C) (defining a definite purpose motor
as a motor ``designed in standard ratings with standard operating
characteristics or standard mechanical construction for use under
service conditions other than usual or for use on a particular type
of application and which cannot be used in most general purpose
application'') and 42 U.S.C. 6311(13)(D) (defining a special purpose
motor as ``a motor, other than a general purpose motor or definite
purpose motor, which has special operating characteristics or
special mechanical construction, or both, designed for a particular
application'').
\10\ In response to questions from NEMA and various motor
manufacturers, DOE issued a guidance document that identifies some
key design elements that manufacturers should consider when
determining whether a given individual motor meets the small
electric motor definition and is subject to the energy conservation
standards promulgated for small electric motors. See https://www.regulations.gov/document?D=EERE-2017-BT-TP-0047-0082.
---------------------------------------------------------------------------
Sierra Club & Earthjustice commented that DOE did not explain why
it is not considering standards for motors other than currently
regulated small electric motors, despite considering test procedures
for motors that the market considers ``small'' in the July 2017 test
procedure RFI. (Sierra Club & Earthjustice, No. 13 at p. 1) In
addition, ASAP, et al. suggested that DOE carefully consider broadening
the scope to address a wide range of motors that the market considers
``small''. (ASAP, et al., No. 16 at p. 2) In its filing, the CA IOUs
argued that DOE should consider establishing standards for additional
categories of motors considered small by customers and the industry,
including special- and definite-purpose motors, permanent split
capacitor motors, and split phase induction motors. (CA IOUs, No. 10 at
pp. 2-3)
In the July 2017 test procedure RFI, DOE indicated that it may
consider setting test procedures for electric motors that are
considered ``small'' by customers and the electric motors industry, but
that are not currently subject to the small electric motor test
procedure. 82 FR 35470. DOE specified that the motors under
consideration in that test procedure RFI may have similarities to
motors that are currently regulated as small electric motors (such as
horsepower) and may be used in similar applications, but that despite
these similarities, DOE is still determining whether these motors would
be regulated as small electric motor or as electric motors under DOE
regulations. Id. As such, this proposed determination is based on the
current scope of the small electric motor definition and not on any
hypothetical expanded scope that DOE may consider in the future.
As previously noted, the term ``small electric motor'' has a
specific meaning under EPCA. See 42 U.S.C. 6311(13)(G) and 10 CFR
431.442. Special purpose and definite purpose motors are not general
purpose motors and therefore are not covered under the statutory or
regulatory definition of ``small electric motor'' and are not ``small
electric motors'' under DOE's statutory or regulatory framework.
Further, single-speed induction motors, as delineated and described
in MG1-1987, fall into five categories: Split-phase, shaded-pole,
capacitor-start (both CSIR and CSCR), permanent-split capacitor
(``PSC''), and polyphase. Of these five motor categories, DOE
determined in the March 2010 Final Rule that only CSIR, CSCR, and
polyphase motors were able to meet the relevant performance
requirements in NEMA MG1 and fell within the general purpose
alternating current motor category, as shown by the listings found in
manufacturers' catalogs. 75 FR 10882. As stated previously, DOE is not
proposing any changes to the scope of small electric motors subject to
energy conservation standards. Therefore, for this determination, DOE
only considered the currently regulated small electric motors subject
to energy conservation standards.\11\
---------------------------------------------------------------------------
\11\ Moreover, even if the facts supported the expansion of the
current scope for small electric motors, DOE notes that it would
first need to consider the potential test methods to apply when
measuring the efficiency of a motor that is not in the scope of the
current DOE test procedure. Nothing DOE has reviewed--or that
commenters have submitted--have suggested that compatibility exists
between motors that fall outside of the already prescribed small
electric motor scope set by Congress and the definition of small
electric motor. Comments related to the scope of applicability of
the DOE test procedure for small electric motors were discussed as
part of DOE's test procedure NOPR. 84 FR 17004, 17009 (April 23,
2019).
---------------------------------------------------------------------------
NEMA, AHRI and AHAM, and Lennox commented that DOE should apply a
finished-product or system level approach to energy efficiency
regulations. (NEMA, No. 11 at p. 18; AHRI and AHAM, No. 12 at pp. 2-3;
Lennox, No. 14 at p. 2). NEMA, AHRI, and AHAM commented that there are
greater energy savings opportunities when regulating at the finished-
product level compared to component level efficiency improvements of
small electric motors. (NEMA, No. 11 at p. 3; AHRI and AHAM, No. 12 at
p. 3) While acknowledging that such considerations are outside the
scope of a small electric motors rulemaking, NEMA commented that DOE
should focus on system level efficiency for equipment where advanced
technology motors can be applied. (NEMA, No. 11 at p. 18) ABB suggested
that regulating systems such as power pumps, compressors, and conveyors
would provide greater energy savings than requiring incremental
increases in small electric motor efficiency. (ABB, No. 15 at p. 1)
Lennox stated that regulating components in covered products and
covered equipment undermines innovation in developing more efficient
finished-product systems, inhibits OEM flexibility to design better
products at lower prices, and adds significant burden. (Lennox, No. 15
at p. 2)
EPCA prescribes that energy conservation standards for small
electric motors do not apply to any small electric motor that is a
component of a covered product or covered equipment under EPCA. (42
U.S.C. 6317(b)(3)) Small electric motors can also be incorporated in
non-covered products and equipment, and in these scenarios, DOE would
be unable to regulate--without first satisfying the statutory
requirements for setting regulatory coverage over these non-covered
products and equipment--the final product/equipment into which these
motors would fit.
The CA IOUs commented that DOE should consider motors with
integrated controls to capture energy savings from part-load operation.
They noted that the IEC 61800-9 Power Driven Systems Standard describes
how to classify and test motors with controls and motors that are
considered variable-speed systems. (CA IOUs, No. 10 at p. 4) DOE
[[Page 24153]]
notes that the statutory definition of small electric motors (42 U.S.C.
6311(13)(G)), which is reflected in the regulatory definition at 10 CFR
431.442, is limited to motors that are single-speed. Consequently,
motors with integrated controls or variable-speed configurations are
beyond the statutory (and regulatory) definition of small electric
motors.
2. Equipment Classes
When evaluating and establishing energy conservation standards, DOE
divides covered equipment into equipment classes by the type of energy
used, or by capacity or other performance-related features that justify
a different standard. (42 U.S.C. 6316(a); 42 U.S.C. 6295(q)) In
determining whether capacity or another performance-related feature
justifies a different standard, DOE must consider such factors as the
utility of the feature to the consumer and other factors DOE deems
appropriate. (Id.) For the analysis in this proposed determination, DOE
considered the 62 equipment classes that it already regulates based on
motor category, horsepower rating, and number of poles. This section
reviews the motor characteristics used to delineate equipment classes
for small electric motors under the current energy conservation
standards and this proposed determination.
The first characteristic used to establish equipment classes is
phase count. Polyphase and single-phase equipment classes are used to
differentiate motors based on the fundamental differences in how the
two types of motors operate. 10 CFR 431.446(a). For a rotor to move,
the stator (i.e., the stationary part of the motor) must produce a
rotating magnetic field. To operate on single-phase alternating current
(``AC'') power, the single-phase motor uses an auxiliary winding (or
start winding) with current and voltage out of phase with the original
(main) winding to produce a net rotating magnetic field. To operate on
three-phase power, the polyphase motor uses windings arranged such that
when supplied by three-phase alternating current, a rotating magnetic
field is produced. In short, three-phase power in a polyphase motor
naturally produces rotation, whereas a single-phase motor requires the
auxiliary winding to ``engineer'' the conditions for rotation. Due to
these differences, polyphase motors are inherently more efficient but
require use of a three-phase power source. Based on the differences in
efficiency and consumer utility, DOE separated equipment classes based
on phase count in the March 2010 Final Rule. 75 FR 10886. This proposed
determination maintains this approach.
In addition to differentiating equipment classes by phase count,
equipment classes are differentiated by the topology of single-phase
motors. 10 CFR 431.446(a). DOE identified two topologies of single-
phase motors meeting the statutory definition of small electric motors:
CSIR and CSCR. CSIR and CSCR motors both utilize a capacitor (``start-
capacitor'') and two windings (``start-winding'' and ``run-winding'').
The difference between the two motors occurs when reaching operating
speed; while CSIR motors run on the run-winding alone with no
capacitor, CSCR motors run using an additional ``run-capacitor'' and
both windings. While this additional capacitor can boost CSCR motor
efficiency to levels higher than those exhibited by CSIR motor designs,
it usually constitutes dimensional changes due to the need to mount the
run-capacitor externally on the motor housing. This additional spatial
requirement could potentially limit the use of CSCR motors in space-
constrained applications, and would cause motor topology to directly
impact consumer utility. Given that motor topology can affect motor
performance and consumer utility, DOE differentiated single-phase
equipment classes by topology in the March 2010 Final Rule. 75 FR
10886. DOE maintains this approach in this proposed determination.
The current energy conservation standards also differentiate
classes based on the number of poles in a motor. 10 CFR 431.446(a). The
number of poles in an induction motor determines the synchronous speed
(i.e., revolutions per minute). There is an inverse relationship
between the number of poles and speed: As a motor design increases from
two to eight poles, the synchronous speed drops from 3,600 to 900
revolutions per minute. The desired synchronous speed varies by end use
application, making the number of poles in a motor a factor directly
impacting consumer utility. By examining the efficiency ratings for 1-
200 horsepower polyphase electric motors (10 CFR 431.25),\12\ motors
meeting the NEMA Premium Motor standard, and manufacturer catalogs, DOE
observed that full-load efficiency percentages tend to decrease with
the number of poles. Therefore, DOE determined that the number of poles
has a direct impact on the motor's performance and consumer utility,
and consequently, the number of poles is a further means of
differentiating among equipment classes. 75 FR 10886. DOE maintains
this approach in this proposed determination.
---------------------------------------------------------------------------
\12\ While there is no overlap between the scope of
applicability for electric motor standards at 10 CFR 431.25 and
small electric motors standards at 10 CFR 431.446, the pole-
efficiency relationships observed in the electric motor standards
from 1 to 3 horsepower can be considered when determining
appropriate pole-efficiency relationships for small electric motors
in this horsepower range.
---------------------------------------------------------------------------
Finally, DOE employs motor horsepower as an equipment class setting
factor under the current energy conservation standards. 10 CFR
431.446(a). Average full load efficiency generally correlates with
motor horsepower (e.g., a 3-horsepower motor is usually more efficient
than a \1/4\-horsepower motor). DOE found that motor efficiency varies
with motor horsepower by evaluating manufacturers' catalog data, the
efficiency ratings of the established small electric motor energy
conservation standards (10 CFR 431.446), and the efficiency
requirements of the NEMA Premium Motor program. Additionally, motor
horsepower dictates the maximum load that a motor can drive, which
means that a motor's rated horsepower can influence and limit the end
use applications where that motor can be used. Horsepower is a critical
performance attribute of a small electric motor, and since horsepower
has a direct relationship with average full load efficiency and
consumer utility, DOE used this element as a criterion for
distinguishing among equipment classes in the March 2010 Final Rule. 75
FR 10886. DOE maintains this approach in this proposed determination.
DOE did not identify any other performance-related features
affecting consumer utility or efficiency applying to the motors falling
within the scope of this proposed determination. Table IV-2 summarizes
the structure of the equipment classes identified for this proposed
determination and as designated by the current standards at 10 CFR
431.446.
[[Page 24154]]
Table IV-2--Summary of Small Electric Motor Equipment Classes
----------------------------------------------------------------------------------------------------------------
Motor topology Pole configuration Motor output power hp
----------------------------------------------------------------------------------------------------------------
Single-phase
CSIR...................................................... 2,4,6 0.25-3
CSCR...................................................... 2,4,6 0.25-3
Polyphase..................................................... 2,4,6 0.25-3
----------------------------------------------------------------------------------------------------------------
DOE received a number of comments on the April 2019 ECS RFI
regarding equipment classes. The CA IOUs, Sierra Club & Earthjustice,
and ASAP, et al. supported merging the CSIR and CSCR equipment classes
and noted that the market share estimates reported in the April 2019
ECS RFI \13\ indicated that CSIR motors no longer appear available in
the market. (CA IOUs, No. 10 at p. 3; Sierra Club & Earthjustice, No.
13 at p. 1; ASAP, et al., No. 16 at p. 4) The Sierra Club &
Earthjustice commented that the market indicates that the initial
concern regarding differences in consumer utility for space-constrained
applications with respect to CSIR and CSCR small electric motors was
not well-founded. (Sierra Club & Earthjustice, No. 13 at p. 1)
---------------------------------------------------------------------------
\13\ Note: The CA IOU comments referenced the ``2017 RFI'' but
points to tables and discussion that are in the 2019 SEM ECS RFI.
DOE is assuming that the intent was to refer to the April 2019 ECS
RFI.
---------------------------------------------------------------------------
NEMA commented that while the CSIR class is no longer a significant
equipment class as a result of the March 2010 Final Rule standards,
there is no reason to make changes to the CSIR and CSCR equipment
classes. NEMA commented that in order for CSIR motors to meet current
efficiency standards, significant design changes were made that
resulted in an increase in size and a subsequent reduction in utility
compared to CSCR motors. (NEMA, No. 11 at p. 4) NEMA stated that the
vast majority of CSIR shipments have shifted to CSCR designs or to
special and definite purpose motors except for the lowest horsepower
ratings. It asserted that sales of small electric motors have decreased
as a result of the standards and that it would expect to see a similar
impact from amended standards (NEMA, No. 11 at p. 16) NEMA also
commented that there are no new design options for small electric
motors that would add consumer utility and, consequently, no need to
consider any new equipment classes. (NEMA, No. 11 at p. 5)
As discussed previously, DOE has found that single-phase motor
topology (CSIR vs. CSCR) can impact motor performance and consumer
utility. Currently, DOE does not have conclusive evidence indicating
that CSIR small electric motors are no longer available in the market
and the statements offered by NEMA suggest the opposite is the case. In
the absence of compelling evidence suggesting otherwise, DOE is
maintaining both classes because of the differences in utility that
these different classes of small electric motors offer--i.e.
dimensional differences. Accordingly, DOE is not proposing to modify
the equipment classes from those that currently apply under 10 CFR
431.446(a). These equipment classes are summarized in Table IV-2.
The CA IOUs commented that the American Standard for Motors and
Generators ANSI/NEMA MG1 (``NEMA MG-1'') does not differentiate between
CSIR and CSCR motors, as they are considered by the motor industry to
be equivalent motor types. The CA IOUs also commented that DOE should
consider defining these terms. (CA IOUs, No. 10 at p. 3) ASAP, et al.
commented that it would be helpful to provide regulatory definitions
for the three topologies covered by the current regulations. (ASAP, et
al., No. 16 at p. 4) NEMA commented that the current definitions for
the three topologies of small electric motors are sufficient. (NEMA,
No. 11 at p. 3) \14\
---------------------------------------------------------------------------
\14\ While NEMA did not specify to which definitions it was
referring, DOE understands NEMA's comment to be referring to the
definitions in industry standards.
---------------------------------------------------------------------------
NEMA MG-1, the industry consensus standard referenced in the
statutory and regulatory definition of ``small electric motor,''
differentiates between the CSIR and CSCR motor topologies.
Specifically, the definitions listed in section 1.20.3 of NEMA MG-1
2016 identifies CSIR and CSCR as two of the three distinct types of
capacitor motors (``capacitor-start, induction-run'' defined in section
1.20.3.3.1 of NEMA MG-1 2016; ``permanent-split'' \15\ defined in
section 1.20.3.3.2 of NEMA MG-1 2016; and ``capacitor-start, capacitor-
run'' defined in section 1.20.3.3.3 of NEMA MG-1 2016). Given the
definitions in the industry consensus standard, the terms ``capacitor-
start, induction-run,'' ``permanent-split capacitor,'' or ``capacitor-
start, capacitor-run'' are well understood and therefore DOE is not
proposing to provide explicit definitions of these motor topologies.
---------------------------------------------------------------------------
\15\ Permanent-split capacitor motors do not meet the
performance requirements for general purpose motors in NEMA MG 1 and
fall outside the scope of the current standards and test procedures
for small electric motors.
---------------------------------------------------------------------------
3. Technology Options for Efficiency Improvement
The purpose of the technology assessment is to develop a
preliminary list of technology options that could improve the
efficiency of small electric motors. For the motors covered in this
determination, energy efficiency losses are grouped into four main
categories: I\2\R losses,\16\ core losses, friction and windage losses,
and stray load losses. The technology options considered in this
section are categorized by these four categories of losses.
---------------------------------------------------------------------------
\16\ I\2\R losses refer to conductor losses. In AC circuits,
these losses are computed as the square of the current (``I'')
multiplied by the conductor resistance (``R'').
---------------------------------------------------------------------------
The small electric motors evaluated in this proposed determination
are all AC induction motors. Induction motors have two core components:
a stator and a rotor. The components work together to convert
electrical energy into rotational mechanical energy. This is done by
creating a rotating magnetic field in the stator, which induces a
current flow in the rotor. This current flow creates an opposing
magnetic field in the rotor, which creates rotational forces. Because
of the orientation of these fields, the rotor field follows the stator
field. The rotor is connected to a shaft that also rotates and provides
the mechanical energy output.
Table IV-3 summarizes the technology options discussed in this
document. Details of each technology option can be found in chapter 3
of the technical support document (``TSD'') prepared as part of DOE's
evaluation, which is available in the docket at https://www.regulations.gov/docket?D=EERE-2019-BT-STD-0008.
[[Page 24155]]
Table IV-3--Summary of Technology Options for Improving Efficiency
------------------------------------------------------------------------
Type of loss to reduce Technology option applied
------------------------------------------------------------------------
I\2\R Losses................. Use a copper die-cast rotor cage.
Reduce skew on conductor cage.
Increase cross-sectional area of rotor
conductor bars.
Increase end ring size.
Changing gauges of copper wire in stator.
Manipulate stator slot size.
Decrease radial air gap.
Change run-capacitor rating.
Core Losses.................. Improve grades of electrical steel.
Use thinner steel laminations.
Anneal steel laminations.
Add stack height (i.e., add electrical
steel laminations).
Use high-efficiency lamination materials.
Use plastic bonded iron powder.
Friction and Windage Losses.. Use better bearings and lubricant.
Install a more efficient cooling system.
------------------------------------------------------------------------
The CA IOUs asserted (without providing any supporting data or
information) that DOE should consider the efficiency gains from
enhanced motor technologies considered in the March 2010 Final Rule
because the availability and affordability of these technologies has
increased since publication of the that final rule. (CA IOUs, No. 10 at
p. 3) In addition, ASAP, et al. commented that DOE should evaluate and
consider all of the technology options that DOE previously analyzed.
(ASAP, et al., No. 16 at p. 3) NEMA commented that no technical
advancements have been made in small electric motor technology since
the last rulemaking. (NEMA, No. 11 at p. 3)
For this evaluation, DOE considered each of the technology options
analyzed in the previous rulemaking and examined any changes to the
cost or availability of these design options since the publication of
the March 2010 Final Rule. In addition, DOE also researched whether
there were any new technologies that could improve the efficiency of
small electric motors. DOE tentatively determined that no significant
technical advancements in induction motor technology have been made
since publication of the March 2010 Final Rule. Details of the
technology options DOE considered for this evaluation can be found in
Chapter 3 of the NOPD TSD.
NEMA commented that many of the motor design options that DOE
listed in Table II-5 of the April 2019 ECS RFI are interdependent with
one or more design options. In other words, the deployment of one
design option sometimes favors the co-dependent application of another
design option, but there are cases where deploying certain combinations
of design options can negatively impact energy consumption. (NEMA, No.
11 at p. 5) NEMA also commented that many of the design options listed
are already optimized in practice, and there may not be further room to
pursue efficiency gains with these design options. Id. at 6. NEMA
asserted that some of the design options listed could negatively impact
utility (e.g., through loss of starting torque, increased risk of motor
failure, increase in motor size, etc.) or add to manufacturer
production costs. (NEMA, No. 11 at pp. 11-12) ABB commented that
substituting a copper rotor in a motor may require a complete redesign,
and could also require significant investment for development, tooling,
and manufacturing. (ABB, No. 15 at pp. 1-2) In addition, ABB commented
that components in motors cannot be arbitrarily substituted without
consequences to the performance and life of motors. Id. at 2.
DOE acknowledges that the technology options listed in Table II-5
cannot be considered individually as they are frequently interdependent
(i.e., methods of reducing electrical losses in motors are not
completely independent of one another). This means that some technology
options that decrease one type of loss may cause an increase in a
different type of loss in the motor. Thus, maximizing the efficiency
gains in a motor design overall requires balancing out the loss
mechanisms. In this evaluation, as in the previous rulemaking, DOE has
considered the interactive effects, practical limitations, and costs of
applying each technology option before making a determination whether
to screen-in the technology options as design options for the
engineering analysis. Details of the screened-in design options
considered for each motor design can be found in Chapter 4 and 5 of the
NOPD TSD.
B. Screening Analysis
DOE uses the following four screening criteria to determine which
technology options are suitable \17\ for further consideration of new
or amended energy conservation standards:
---------------------------------------------------------------------------
\17\ DOE refers to the technology options that pass the
screening criteria as ``design options.''
---------------------------------------------------------------------------
(1) Technological feasibility. Technologies that are not
incorporated in commercial products or in working prototypes will not
be considered further.
(2) Practicability to manufacture, install, and service. If it is
determined that mass production and reliable installation and servicing
of a technology in commercial products could not be achieved on the
scale necessary to serve the relevant market at the time of the
projected compliance date of the standard, then that technology will
not be considered further.
(3) Impacts on product utility or product availability. If it is
determined that a technology would have a significant adverse impact on
the utility of the product to significant subgroups of consumers or
would result in the unavailability of any covered product type with
performance characteristics (including reliability), features, sizes,
capacities, and volumes that are substantially the same as products
generally available in the United States at the time, it will not be
considered further.
(4) Adverse impacts on health or safety. If it is determined that a
technology would have significant adverse impacts on health or safety,
it will not be considered further.
See 10 CFR part 430, subpart C, appendix A, 4(a)(4) and 5(b)
In sum, if DOE determines that a technology, or a combination of
[[Page 24156]]
technologies, fails to meet one or more of the above four criteria, it
will be excluded from further consideration in the engineering
analysis. Additionally, DOE notes that the four screening criteria do
not directly address the propriety status of technology options. DOE
only considers potential efficiency levels achieved through the use of
proprietary designs in the engineering analysis if they are not part of
a unique pathway to achieve that efficiency level (i.e., if there are
other non-proprietary technologies capable of achieving the same
efficiency level). The reasons for eliminating any technology are
discussed below.
Table IV-3 provides a summary of all the technology options DOE
considered for improving small electric motor efficiency. For a
description of how each of these technology options improves small
electric motor efficiency, see NOPD TSD chapter 3. For the proposed
determination, DOE screened out three of these technology options:
Reducing the air gap below .0125 inches, amorphous metal laminations,
and plastic bonded iron powder (``PBIP'').
Reducing the air gap between the rotor and stator can improve motor
efficiency. For small electric motors, the air gap is commonly set at
15 thousandths of an inch. Although reducing this air gap can improve
efficiency, there is some point at which the air gap is too tight and
becomes impracticable to manufacture. In the March 2010 Final Rule DOE
screened out air gaps below 12.5 thousandths of an inch because it
would exceed the threshold for practicability to manufacture. 75 FR
10887. In response to the April 2019 ECS RFI, NEMA commented that DOE
should continue to screen out decreasing the radial air gap below 12.5
thousandths of an inch. (NEMA, No. 11 at p. 7)
A reduction in air gaps is technologically feasible and DOE is
unaware of any adverse impacts on health or safety associated with
reducing the radial air gap below 12.5 thousandths of an inch. However,
this technology option fails the screening criterion of being
practicable to manufacture, install, and service. Such a tight air gap
may cause problems in manufacturing and service, with the rotor
potentially coming into contact with the stator. This technology option
also fails the screening criterion of avoiding adverse impacts on
consumer utility and reliability, because the motor may experience
higher failure rates in service when the manufactured air gaps are less
than 12.5 thousandths of an inch.
Using amorphous metals in the rotor laminations is another
potential technology option to improve the efficiency of small electric
motors. Amorphous metal is extremely thin, has high electrical
resistivity, and has little or no magnetic domain definition. Because
of amorphous steel's high resistance, it exhibits a reduction in
hysteresis and eddy current losses, which in turn reduces overall
losses in small electric motors. However, amorphous steel is a very
brittle material which makes it difficult to punch into motor
laminations.\18\
---------------------------------------------------------------------------
\18\ 1 S.R. Ning, J. Gao, and Y.G. Wang. Review on Applications
of Low Loss Amorphous Metals in Motors. 2010. ShanDong University.
Weihai, China.
---------------------------------------------------------------------------
Considering the four screening criteria for this technology option,
DOE screened out amorphous metal laminations as a means of improving
efficiency. Although amorphous metals have the potential to improve
efficiency, DOE does not consider this technology option
technologically feasible, because it has not been incorporated into a
working prototype of a small electric motor. Furthermore, DOE is
uncertain whether amorphous metals are practicable to manufacture,
install, and service, because a prototype amorphous metal-based small
electric motor has not been made and little information is available on
the feasibility of adapting this technology for manufacturing small
electric motors to reach any conclusions regarding the practicability
of using this option. DOE is not aware of any adverse impacts on
consumer utility, reliability, health, or safety associated with
amorphous metal laminations.
Using PBIP to manufacture small electric motors could cut
production costs while increasing production output. Although other
researchers may be working on this technology option, DOE notes that a
research team at Lund University in Sweden published a paper in 2007
about using PBIP in manufacturing. This technology option is based on
an iron powder alloy that is suspended in plastic, and is used in
certain motor applications such as fans, pumps, and household
appliances.\19\ The compound is then shaped into motor components using
a centrifugal mold, reducing the number of manufacturing steps.
Researchers claim that this technology option could cut losses by as
much as 50 percent. The Lund University study, which is the most recent
research paper to address the use of PBIP in the production context,
indicated that its study team already produced inductors, transformers,
and induction heating coils using PBIP, but had not yet produced a
small electric motor. In addition, it appears that PBIP technology is
aimed at torus, claw-pole, and transversal flux motors, none of which
fit the regulatory definition of small electric motors at 10 CFR
431.442. DOE has not found evidence of any significant research or
technical advancement in PBIP methodologies that could be applied to
small electric motors since publication of the March 2010 Final Rule.
In response to the April 2019 ECS RFI, NEMA commented that DOE should
continue to screen out this technology option for the same reasons that
DOE had previously cited in its TSD to the March 2010 Final Rule.
(NEMA, No. 11 at p. 7)
---------------------------------------------------------------------------
\19\ Horrdin, H., and E. Olsson. Technology Shifts in Power
Electronics and Electric Motors for Hybrid Electric Vehicles: A
Study of Silicon Carbide and Iron Powder Materials. 2007. Chalmers
University of Technology. G[ouml]teborg, Sweden.
---------------------------------------------------------------------------
Considering the four screening criteria for this technology option,
DOE screened out PBIP as a means of improving efficiency. Although PBIP
has the potential to improve efficiency while reducing manufacturing
costs, DOE does not consider this technology option technologically
feasible because it has not been incorporated into a working prototype
of a small electric motor. Also, DOE is uncertain whether the material
has the structural integrity to form into the necessary shape of a
small electric motor steel frame. Specifically, properties of PBIP can
differ depending on the processing. If the metal particles are too
closely compacted and begin to touch, the material will gain electrical
conductivity, counteracting one of its most important features of
preventing electric current from developing, which is critical because
this essentially eliminates losses in the core due to eddy currents. If
the metal particles are not compacted closely enough, its structural
integrity could be compromised because the resulting material will be
very porous.
Furthermore, DOE is uncertain whether PBIP is practicable to
manufacture, install, and service, because a prototype PBIP small
electric motor has not yet been made and little information is
available on the feasibility of adapting this option for manufacturing
small electric motors. However, DOE is not aware at this time of any
adverse impacts on product utility, product availability, health, or
safety that may arise from the use of PBIP in small electric motors.
DOE has determined that the remaining technology options listed in
Table IV-2 are technologically feasible. The evaluated technologies all
have been used (or are being used) in
[[Page 24157]]
commercially available products or working prototypes. These
technologies all incorporate materials and components that are
commercially available in today's supply markets for the small electric
motors that are the subject of this document. Therefore, DOE has
screened in these technology options as design options in the
engineering analysis.
C. Engineering Analysis
The engineering analysis estimates the increase in manufacturer
selling price (``MSP'') associated with improvements to the average
full load efficiency of small electric motors. This section presents
DOE's assumptions and methodology for the engineering analysis. The
output from the engineering analysis is a price-efficiency relationship
for each equipment class that describes how MSP changes as efficiency
increases. The engineering analysis is used as an input to the LCC and
PBP analyses.
DOE typically structures the engineering analysis using one of
three approaches: (1) Design option, (2) efficiency level, or (3)
reverse engineering (or cost assessment). The design option approach
involves adding the estimated cost and associated efficiency of various
efficiency-improving design changes to the baseline product to model
different levels of efficiency. The efficiency level approach uses
estimates of costs and efficiencies of products available on the market
at distinct efficiency levels to develop the cost-efficiency
relationship. The reverse engineering approach involves testing
products for efficiency and determining cost from a detailed bill of
materials (``BOM'') derived from reverse engineering representative
products. The efficiency ranges from that of the least-efficient small
electric motor sold today (i.e., the baseline) to the maximum
technologically feasible efficiency level.
For analysis purposes, this proposed determination reflects DOE's
adoption of a design option approach based on motor modeling conducted
in support of the March 2010 Final Rule. In this design option
approach, DOE considers efficiency levels corresponding to motor
designs that meet or exceed the efficiency requirements of the current
energy conservation standards at 10 CFR 431.446. DOE has tentatively
determined that there are no additional technology options that pass
the screening criteria that would enable the consideration of any
additional efficiency levels representing higher efficiency levels than
the maximum technologically feasible level analyzed in the March 2010
Final Rule.
1. Summary of Significant Data Sources
DOE utilized two principal data sources for the engineering
analysis: (1) A database of small electric motor manufacturer suggested
retail price (``MSRP'') and performance data based on the current
market, and (2) motor modeling data, test data, and performance
specifications from the March 2010 Final Rule. DOE determined that
relying on the data from the March 2010 Final Rule was reasonable
because a review of the catalog data and responses to the April 2019
ECS RFI suggested that there were no significant technological
advancements in the motor industry that could lead to more efficient or
lower cost motor designs relative to the motors modeled for the March
2010 Final Rule. Accordingly, in this determination, DOE has elected to
evaluate the motor designs that were modeled for the March 2010 Final
Rule analysis. To confirm this approach, DOE is again requesting
comments regarding this issue.
DOE collected MSRP and performance data from product literature and
catalogs distributed by four major motor manufacturers: ABB (which
includes the manufacturer formerly known as Baldor Electric Company),
Nidec Motor Corporation (which includes the US Motors brand), Regal-
Beloit Corporation (which includes the Marathon and Leeson brands), and
WEG Electric Motors Corporation.\20\ Based on market information from
the Low-Voltage Motors World Market Report,\21\ DOE estimates that the
four major motor manufacturers noted above comprise the majority of the
U.S. small electric motor market and are consistent with the motor
brands considered in the March 2010 Final Rule. (Throughout this
document this data will be referred to as the ``manufacturer catalog
data.'')
---------------------------------------------------------------------------
\20\ ABB (Baldor-Reliance): Online Manufacturer Catalog,
accessed January 3, 2019. Available at https://www.baldor.com/catalog#category=2; Nidec: Online Manufacturer Catalog, accessed
December 26, 2018. Available at ecatalog.motorboss.com/Catalog/Motors/ALL; Regal (Marathon and Leeson): Online Manufacturer
Catalog, accessed December 27, 2018. Available at https://www.regalbeloit.com/Products/Faceted-Search?category=Motors&brand=Leeson,Marathon%20Motors; WEG: Online
Manufacturer Catalog, accessed December 24, 2018. Available at
https://catalog.wegelectric.com/
\21\ Based on the Low-Voltage Motors, World Market Report (IHS
Markit Report September 2017, Edition 2017-2018) Table 5.15: Market
Share Estimates for Low-voltage Motors: Americas; Suppliers `share
of the Market in 2015 and 2016.
---------------------------------------------------------------------------
2. Representative Equipment Classes
Due to the large number of equipment classes, DOE did not directly
analyze all 62 equipment classes of small electric motors considered
under this proposed determination. Instead, DOE selected representative
classes based on two factors: (1) The quantity of motor models
available within an equipment class and (2) the ability to scale to
other equipment classes.
DOE notes that the minimum energy conservation standards adopted in
the March 2010 Final Rule correspond to the efficiency level that
represented the maximum technologically feasible efficiency for CSIR
motors. As discussed previously, DOE was unable to identify any
additional design options that passed the screening criteria that would
indicate that a motor design meeting a higher efficiency level is
technologically feasible and commercially viable (see NOPD TSD chapter
3). In addition, DOE was unable to identify any CSIR motors in the
manufacturer catalog data that exhibited efficiency levels exceeding
the current energy conservation standards for CSIR motors. From this
information, DOE tentatively concluded that more stringent energy
conservation standards for CSIR motors do not appear to be
technologically feasible. Consequently, DOE did not include a
representative CSIR equipment class as part of the engineering
analysis.
The minimum energy conservation standards adopted in the March 2010
Final Rule corresponded to efficiency levels below the maximum
technologically feasible levels for the CSCR and polyphase topologies,
and therefore DOE elected to analyze one representative equipment class
for each of these motor topologies. Equipment classes in the both the
polyphase and CSCR topologies were directly analyzed due to the
fundamental differences in their starting and running electrical
characteristics. These differences in operation have a direct impact on
performance and indicate that polyphase motors are typically more
efficient than single-phase motors. In addition, the efficiency
relationships across horsepower and pole configuration are different
between single-phase and polyphase motors.
DOE did not vary the pole configuration of the representative
classes it analyzed because analyzing the same pole configuration
provided the strongest relationship upon which to base its scaling. See
section IV.C.5 for details on DOE's scaling methodology. Keeping as
many design characteristics constant as possible enabled DOE to more
accurately identify how design
[[Page 24158]]
changes affect efficiency across horsepower ratings. For each motor
topology, DOE directly analyzed the most common pole-configuration. For
both motor topologies analyzed, 4-pole motors constitute the largest
fraction of motor models on the market.
When DOE selected its representative equipment classes, DOE chose
the horsepower ratings that constitute a high volume of motor models
and approximate the middle of the range of covered horsepower ratings
so that DOE could develop a reasonable scaling methodology. DOE notes
that the representative equipment classes for polyphase and CSCR motors
that were selected for the engineering analysis align with the
representative classes that were directly analyzed in the March 2010
Final Rule. 75 FR 10874, 10888. These representative classes are
outlined in Table IV-4.
Table IV-4--Representative Equipment Classes
----------------------------------------------------------------------------------------------------------------
Motor topology Pole configuration Motor output power hp
----------------------------------------------------------------------------------------------------------------
Polyphase..................................................... 4 1.00
Single-phase CSCR............................................. 4 0.75
----------------------------------------------------------------------------------------------------------------
DOE seeks comment on the selection of representative equipment
classes for CSCR and polyphase motors and the tentative determination
that more stringent energy conservation standards for CSIR motors are
not technologically feasible.
See section VII.B for a complete list of issues on which DOE seeks
comments.
3. Engineering Analysis Methodology
DOE relied on a design option approach to generate incremental MSPs
and establish efficiency levels, in which the relative costs of
achieving increases in efficiency are determined based on the cost of
various efficiency-improving design changes to the baseline motor. For
each representative equipment class, DOE identified a specific motor as
a fundamental design against which it would apply changes to improve
the motor's efficiency. Each increase in efficiency over the baseline
level that DOE analyzed was assigned an efficiency level (``EL'')
number.
Consistent with its usual analytical approach, DOE considered the
current minimum energy conservation standards to establish the baseline
efficiency levels for each representative equipment class. In response
to the April 2019 ECS RFI, the CA IOUs supported using the current
standards as the baseline efficiency level. (CA IOUs, No. 10 at p. 4)
In addition, NEMA commented that the current energy conservation
standards reasonably approximate the baseline for covered equipment.
(NEMA, No. 11 at p. 7)
As discussed previously, DOE selected representative equipment
classes that align with the classes analyzed in the March 2010 Final
Rule. DOE identified specific motor designs from the March 2010 Final
Rule engineering analysis that exhibit full-load efficiency ratings
that are representative of the minimum energy conservation standards
for small electric motors. DOE chose these motor designs as the
baseline designs against which design options to improve motor
efficiency would be implemented as part of DOE's analysis.
For the March 2010 Final Rule engineering analysis, DOE purchased
and tested motors with the lowest catalog efficiency rating available
in the market for each representative equipment class. DOE's technical
expert tore down each motor to obtain dimensions, a BOM, and other
pertinent design information. DOE worked with a subcontractor to
reproduce these motor designs using modeling software and then applied
design options to a modeled motor that would increase that motor's
efficiency to develop a series of motor designs spanning a range of
efficiency levels. For the current evaluation, DOE continued to base
its analysis on the modeled motor designs. In light of its catalog
review and the responses received to the April 2019 ECS RFI indicating
that there were no significant technological advancements in the motor
industry that could lead to more efficient or lower cost motor designs
relative to the motors modeled for the March 2010 Final Rule.\22\
Further information on the development of modeled motor designs from
the March 2010 Final Rule is available in section 5.3 of the NOPD TSD.
---------------------------------------------------------------------------
\22\ DOE also notes that ASAP, et al. recommended that DOE
conduct an analysis similar to the modeling analysis completed for
the March 2010 Final Rule. (ASAP, et al., No. 16 at p. 4)
---------------------------------------------------------------------------
NEMA commented that DOE did not adequately consider comments
regarding OEM design impacts from the larger motor dimensions that
would result from re-designing motors to be compliant with the energy
conservation standards adopted in the March 2010 Final Rule. (NEMA, No.
11 at p. 7) NEMA added that DOE should seek input from OEMs on the
impact of increased motor size that would be needed to increase motor
efficiency. (NEMA, No. 11 at p. 17) AHRI and AHAM commented that more
efficient motors within a particular topology are likely to be larger
and heavier, which could decrease consumer utility. AHRI and AHAM
stated that replacement motors must be able to fit inside the finished
product for which they are destined, and this factor must be considered
when evaluating more stringent standards. (AHRI and AHAM, No. 12 at p.
3)
In developing the modeled motor designs and associated costs, DOE
considered both space-constrained and non-space-constrained scenarios.
DOE prepared designs of increased efficiency covering both scenarios
for each representative equipment class. The design levels prepared for
the space-constrained scenario included baseline and intermediate
levels, a level for a design using a copper rotor, and a max-tech level
with a design using a copper rotor and exotic core steel. The high-
efficiency space-constrained designs incorporate copper rotors and
exotic core steel in order to meet comparable levels of efficiency to
the high-efficiency non-space-constrained designs while meeting the
parameters for minimally increased stack length. The design levels
created for the non-space-constrained scenario corresponded to the same
efficiency levels created for the space-constrained scenario. Further
information on the development of modeled motor designs is available in
section 5.3 of the March 2010 Final Rule TSD. In addition to developing
different MSPs for space-constrained and non-space-constrained
scenarios, DOE developed a modified OEM markup in support of the March
2010 Final Rule to account for the costs faced by OEMs needing to
redesign their products to incorporate small electric motors of
different sizes.\23\ In this current evaluation, DOE continues to
analyze increased efficiency in both space-
[[Page 24159]]
constrained and non-space-constrained scenarios for each of the
representative equipment classes, in line with the March 2010 Final
Rule.
---------------------------------------------------------------------------
\23\ For more details see chapter 7 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
---------------------------------------------------------------------------
NEMA also commented that more stringent energy conservation
standards would result in the design of motors with lower slip \24\ and
in turn, higher full-load speeds. NEMA stated that, as such, more
stringent energy conservation standards would force manufacturers of
end-use products to redesign their products to account for the higher
motor speeds. (NEMA, No. 11 at p. 13) This factor, it asserted, would
have the impact of increasing the speed and therefore the output power
delivered to the motor's application and offset some of the improvement
in motor efficiency. NEMA also commented that small businesses,
including motor manufacturers and OEMs, would be required to spend more
for motors that provide little additional energy savings from more
stringent energy conservation standards for the small electric motors
at issue. (NEMA, No. 11 at p. 18) The designs analyzed in the
engineering analysis did not show a significant (less than 2 percent)
and consistent (some more efficient designs had slightly lower speeds)
increase in speed with increasing efficiency across all ELs (See NOPD
TSD Chapter 5). However, as discussed previously, DOE has tentatively
determined that more stringent energy conservation standards would not
be cost effective and therefore is not proposing to amend the current
energy conservation standards for this equipment.
---------------------------------------------------------------------------
\24\ Motor slip is the difference between the speed of the rotor
(operating speed) and the speed of the rotating magnetic field of
the stator (synchronous speed). When net rotor resistance of a motor
design is reduced, efficiency of the motor increases but slip
decreases, resulting in higher operating speeds.
---------------------------------------------------------------------------
As discussed in section IV.A.3, DOE considered each of the design
options analyzed in the previous rulemaking and also researched whether
there were any new technologies that could improve the efficiency of
small electric motors. Accordingly, DOE determined that there were no
significant technological advancements since the March 2010 Final Rule.
In addition, comments received suggested the same. (NEMA, No. 11 at p.
3) Given that DOE was unable to identify any additional design options
for improving efficiency that passed the screening criteria and were
not already considered in the March 2010 Final Rule engineering
analysis, DOE analyzed the same motor designs that were developed for
the March 2010 Final Rule except for CSIR motors (which, as indicated
earlier, did not appear to have any technologically-feasible options
available to improve their efficiency). For each representative
equipment class, DOE established an efficiency level for each motor
design that exhibited improved efficiency over the baseline design. As
discussed previously, DOE considered the current minimum energy
conservation standards as the baseline efficiency levels for each
representative equipment class. These efficiency levels are summarized
in Table IV-5.
Table IV-5--Summary of Efficiency Levels
------------------------------------------------------------------------
Efficiency
Representative equipment class EL (%)
------------------------------------------------------------------------
Single-phase CSCR, 4-pole, 0.75-hp...... 0 81.8
1 82.8
2 84.0
3 84.6
4 86.7
5 87.9
Polyphase, 4-pole, 1-hp................. 0 83.5
1 85.2
2 86.3
3 87.8
------------------------------------------------------------------------
In response to the April 2019 ECS RFI, ASAP, et al. commented that
DOE should thoroughly investigate more stringent efficiency levels than
those currently available in the market (ASAP, et al., No. 16 at p. 3)
ASAP, et al. noted that DOE had found 15 percent of CSCR motor models
attained efficiencies exceeding the levels adopted in the March 2010
Final Rule and stated that the prior availability of these higher
levels demonstrates technological feasibility. In addition, ASAP, et
al. suggested that DOE review manufacturer literature and other data
sources to determine if products exceeding minimum standards are
available in the market for any regulated equipment class. (ASAP, et
al., No. 16 at pp. 3-4) As noted previously, DOE is evaluating
efficiency levels up to the maximum technologically feasible levels for
each motor topology, including efficiency levels that represent motors
that are not yet commercially available (e.g., a small electric motor
design that is technologically feasible but not available on the market
because of cost considerations). As part of this evaluation, DOE
reviewed manufacturer literature to determine the availability of small
electric motors across all equipment classes considered in this
document by efficiency level. This literature includes efficiency
values derived from manufacturer testing using the mandatory DOE test
procedure. DOE's review of this information indicated that for CSCR
motors, the most recent manufacturer catalog data only included a
single model with an efficiency above the baseline level (i.e. the
current standard required of these motors). (See also section IV.F.8).
ASAP, et al. recommended that DOE conduct an analysis similar to
the modeling analysis completed for the March 2010 Final Rule and added
that while levels of maximum technological feasibility may not be
commercially available today, energy conservation standards policy
could provide the basis for making cost-effective improvements to
motors that could not be otherwise achieved by market forces. (ASAP, et
al., No. 16 at p. 4) Lenze Americas commented that DOE should consider
setting standard levels at an International Efficiency (``IE'')2 \25\
equivalent for motors below 1 hp and an
[[Page 24160]]
IE3 equivalent for motors greater than or equal to 1 hp. (Lenze
Americas, No. 3 at p. 1)
---------------------------------------------------------------------------
\25\ The IE designations are efficiency levels defined by IEC
standard 60034-30-1 for 50 and 60 Hz single or three-phase line
motors (regardless of the technology). Motors meeting the IE1
efficiency level are designated ``standard efficiency,'' IE2
qualifying motors are designated ``high-efficiency,'' IE3 qualifying
motors are designated ``premium efficiency,'' and IE4 qualifying
motors are designated ``super premium efficiency.''
---------------------------------------------------------------------------
DOE is adopting the motor modeling approach used in support of the
March 2010 Final Rule to analyze and establish efficiency levels and
incremental motor MSPs. DOE did not identify any additional design
options in the market for improving efficiency that were not already
considered in the March 2010 Final Rule. In addition, while DOE is not
specifically evaluating the IE levels in this analysis, the range of
motor efficiency levels analyzed in this evaluation is inclusive of
efficiencies specified in the IE2 and IE3 efficiency levels.
The CA IOUs commented that DOE should conduct independent testing
to verify the efficiency performance of the motor designs considered in
each representative equipment class. (CA IOUs, No. 10 at p. 3) ASAP, et
al. suggested that DOE investigate whether motors rated at the standard
level are more efficient than stated because DOE regulations permit
manufacturers to rate their products conservatively. (ASAP, et al., No.
16 at pp. 3-4) DOE notes that the performance of the motor designs
considered in this analysis were verified by conducting motor
efficiency testing during the previous rulemaking. Details of this
validation testing can be found in appendix 5A of the March 2010 Final
Rule TSD.
DOE seeks comment on the methodologies employed in the engineering
analysis, specifically regarding the adoption of the motor designs and
associated efficiency levels considered in the March 2010 Final Rule
analysis as the basis for this proposed determination.
See section VII.B for a complete list of issues on which DOE seeks
comments.
4. Cost
For representative equipment classes, each efficiency level is
based on a motor design with a distinct set of performance
characteristics, production costs, and non-production costs. Full
production cost is a combination of direct labor, direct materials, and
overhead. Non-production costs include the cost of selling (market
research, advertising, sales representatives, logistics), general and
administrative costs, research and development, interest payments and
profit factor.
A standard BOM was constructed for each motor design that includes
direct material costs and labor time estimates along with costs. The
BOM is then multiplied by a markup for overhead to obtain an MPC that
is further marked up to reflect non-production costs to create an MSP.
DOE notes that the costs established for direct material costs and
labor time were initially determined in terms of $2009 for the March
2010 Final Rule. For this evaluation, DOE updated these material and
labor costs to be representative of the market in 2018. DOE adjusted
historical material prices to $2018 using the historical Bureau of
Labor Statistics Producer Price Indices (``PPI'') \26\ for each
commodity's industry. In addition, DOE updated labor costs and markups
based on the most recent and complete version (i.e. 2012) of the
Economic Census of Industry by the U.S. Census Bureau.\27\
---------------------------------------------------------------------------
\26\ www.bls.gov/ppi/.
\27\ U.S. Census Bureau, 2012 Economic Census of Industry Series
Reports for Industry, U.S. Department of Commerce, 2012
---------------------------------------------------------------------------
In response to the April 2019 ECS RFI, NEMA commented that tariffs
on steel and aluminum have caused cost increases for current motor
designs which could exacerbate the cost impacts of more stringent
standards. (NEMA, No. 11 at p. 13) DOE notes that changes in the cost
of steel and aluminum components since 2010 have been accounted for in
this proposed determination and are considered when evaluating more
stringent energy conservation standards.
DOE seeks input on whether and how the costs estimated for motor
designs considered in the March 2010 Final Rule have changed since the
time of that analysis. DOE also requests information on the investments
(including related costs) necessary to incorporate specific design
options, including, but not limited to, costs related to new or
modified tooling (if any), materials, engineering and development
efforts to implement each design option, and manufacturing/production
impacts.
See section VII.B for a complete list of issues on which DOE seeks
comments.
5. Scaling Relationships
In analyzing the equipment classes, DOE developed a systematic
approach to scaling efficiency across horsepower ratings and pole
configurations, while retaining reasonable levels of accuracy, in a
manner similar to the March 2010 Final Rule. DOE's current energy
conservation standards for small electric motors found at 10 CFR
431.446 list minimum required efficiencies over a range of horsepower
and pole configurations, providing a basis for scaling efficiency
across horsepower and pole configurations for polyphase and single-
phase motors. The efficiency relationships in the established standards
are based on a combination of NEMA recommended efficiency standards,
NEMA premium designations, catalog data, and test data for individual
manufacturer motor product lines. DOE has elected to apply the same
scaling methodologies used to support the March 2010 Final Rule to the
engineering analysis for this proposed determination. 75 FR 10894-
10895. This approach has been presented previously to stakeholders and
has been updated based on stakeholder input. In DOE's view, this
approach has the added advantage of reducing the analytical complexity
associated with conducting a detailed engineering analysis of the cost-
efficiency relationship on all 62 equipment classes. Id.
For this NOPD, while the engineering analysis focuses on two
representative units, the energy use and life-cycle cost analyses (see
sections IV.E and IV.F) consider two additional representative units to
separately analyze consumers of integral (i.e., with horsepower greater
than or equal to 1 hp) single-phase CSCR small electric motors and
fractional (i.e., with horsepower less than 1 hp) polyphase small
electric motors. To scale to the equipment classes that were not
directly analyzed, DOE followed several steps. First, DOE evaluated the
efficiency relationships presented in the recommended standards
provided by NEMA for the March 2010 Final Rule. DOE then compiled
efficiency data for as many manufacturers and equipment classes as
possible and filtered the data to ensure an accurate representation of
the small electric motors that are covered by the statute. Next, DOE
modeled all the efficiency data in terms of motor losses and used a
best-fit curve to project values to fill in any potential gaps in data.
Finally, DOE scaled the results of the engineering analysis based on
the relationships found from the combined NEMA data and catalog data.
DOE seeks input on implementing a similar scaling methodology as
that used for the March 2010 Final Rule in this NOPD.
See section VII.B for a complete list of issues on which DOE seeks
comments.
D. Markups Analysis
The markups analysis develops appropriate markups (e.g., retailer
markups, distributor markups, contractor markups) in the distribution
chain to convert the MSP estimates derived in the engineering analysis
to consumer prices, which are then used in the LCC and PBP analysis. At
each step in the distribution channel, companies mark up the price of
the equipment to cover business costs and profit margin. For small
electric motors, the main
[[Page 24161]]
parties in the distribution chain are manufacturers, distributors,
contractors or installers, OEMs of equipment incorporating small
electric motors, and consumers.
DOE relied on estimates provided by NEMA during the March 2010
Final Rule to establish the proportion of shipments through each
distribution channel.\28\ In response to the April 2019 ECS RFI, DOE
did not receive any data to support alternative distribution channels
for small electric motors. DOE used data from the U.S. Census Bureau
\29\ and the Sales Tax Clearinghouse \30\ to develop distribution
channel markups and sales tax estimates.
---------------------------------------------------------------------------
\28\ For more details see chapter 7 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
\29\ U.S. Census Bureau, 2014 Annual Survey of Manufacturers;
2012 Economic Census Annual Wholesale Trade Survey.
\30\ Sales Tax Clearinghouse, Inc. State sales tax rates along
with combined average city and county rates, 2017. Available at:
https://thestc.com/STrates.stm.
---------------------------------------------------------------------------
DOE also developed baseline and incremental markups for each actor
in the distribution chain. Baseline markups are applied to the price of
equipment with baseline efficiency, while incremental markups are
applied to the difference in price between baseline and higher-
efficiency models (the incremental cost increase). The incremental
markup is typically less than the baseline markup and is designed to
maintain similar per-unit operating profit before and after new or
amended standards.\31\ DOE relied on economic data from the U.S. Census
Bureau to estimate average baseline and incremental markups.
---------------------------------------------------------------------------
\31\ Because the projected price of standards-compliant products
is typically higher than the price of baseline products, using the
same markup for the incremental cost and the baseline cost would
result in higher per-unit operating profit. While such an outcome is
possible, DOE maintains that in markets that are reasonably
competitive it is unlikely that imposing more stringent standards
would lead to a sustainable increase in profitability in the long
run.
---------------------------------------------------------------------------
Further, in the space-constrained scenario, DOE developed a
modified OEM markup to account for the costs faced by those OEMs of
equipment incorporating small electric motors needing to redesign their
products in order to incorporate small electric motors of different,
including larger, sizes. Nationally, businesses spend about 2.7 percent
of U.S. gross domestic product on research and development
(``R&D'').\32\ DOE estimates that R&D by equipment OEMs, including the
design of new products, approximately represents at most 2.7 percent of
company revenue. Similar to what was done in the March 2010 Final Rule,
DOE accounted for the additional costs to redesign products and
incorporate differently-shaped motors by adding 2 percent to the OEM
markups.\33\
---------------------------------------------------------------------------
\32\ National Science Board. January 2018. Science and
Engineering Indicators 2018. Figure 4-3, Ratio of U.S. R&D to gross
domestic product, by roles of federal, business, and other
nonfederal funding for R&D: 1953-2015. Arlington, VA: National
Science Foundation (NSB-2018-1) Available at https://www.nsf.gov/statistics/2018/nsb20181/assets/1038/research-and-development-u-s-trends-and-international-comparisons.pdf.
\33\ For more details see chapter 7 of the 2010 small electric
motors final rule TSD, at https//www.regulations.gov/
document?D=EERE-2007-BT-STD-0007-0036.
---------------------------------------------------------------------------
Table IV-6 summarizes the overall baseline and incremental markups
for each distribution channel considered for small electric motors.
Table IV-6--Small Electric Motors Distribution Channel Markups
--------------------------------------------------------------------------------------------------------------------------------------------------------
Distribution channel (from manufacturer) Direct to OEMs (65%) Via wholesalers to OEMs (30%) Via wholesalers to end-users
------------------------------------------------------------------------------------------------------------------------- (5%)
-------------------------------
Main Party Baseline Incremental Baseline Incremental Baseline Incremental
--------------------------------------------------------------------------------------------------------------------------------------------------------
Motor Wholesaler........................................ .............. .............. 1.35 1.19 1.35 1.19
Original Equipment Manufacturer (OEM)*.................. 1.47/1.50 1.23/1.25 1.47/1.50 1.23/1.25 .............. ..............
Equipment Wholesaler.................................... 1.41 1.19 1.41 1.19 .............. ..............
Retailer................................................ .............. .............. .............. .............. 1.53 1.27
Contractor.............................................. 1.1 1.1 1.1 1.1 1.1 1.1
--------------------------------------------------------------------------------------------------------------------------------------------------------
Sales Tax............................................... 1.0721
1.0721
1.0721
--------------------------------------------------------------------------------------------------------------------------------------------------------
Overall................................................. 2.45/2.50 1.72/1.76 3.31/3.37 2.06/2.10 2.44 1.78
--------------------------------------------------------------------------------------------------------------------------------------------------------
* Non-space-constrained scenario/space-constrained scenario.
DOE seeks comment on the methodology and data used for estimating
end-user prices for small electric motors.
See section VII.B for a complete list of issues on which DOE seeks
comments. Chapter 6 of the TSD provides details on the DOE's markup
analysis for small electric motors.
E. Energy Use Analysis
The purpose of the energy use analysis is to determine the annual
energy consumption of small electric motors at different efficiency
levels and to assess the energy savings potential of increased
efficiency. The analysis estimates the range of energy use of small
electric motors in the field (i.e., as they are actually used by
consumers). The energy use analysis provides the basis for other
analyses DOE performed, particularly assessments of the energy savings
and the savings in consumer operating costs that could result from
adoption of amended or new standards.
The analysis focuses on the two representative units identified in
the engineering analysis (see section IV.C) for which engineering
analysis results were obtained at levels at and above the baseline. Two
additional representative units were included to separately analyze
consumers of integral (i.e., with horsepower greater than or equal to 1
hp) single-phase CSCR small electric motors and fractional (i.e., with
horsepower less than 1 hp) polyphase small electric motors (see Table
IV-7).\34\ For each representative unit, DOE determined the annual
energy consumption value by multiplying the motor input power by the
annual operating hours for a representative sample of motor consumers.
---------------------------------------------------------------------------
\34\ Similar to the approach used in the engineering analysis
when selecting representative units, DOE reviewed model counts from
the manufacturer online catalog data to identify these additional
units. DOE reviewed counts of CSCR, 4-poles small electric motors
and polyphase, 4-poles, small electric motors models. For CSCR
motors, the 1 horsepower value had the most counts and DOE selected
a unit at 1 horsepower. For polyphase motors, the 0.33, 0.5, and
0.75 horsepower values had the most counts (and similar counts) and
DOE selected a unit at 0.5 horsepower (i.e. the mid-range of these
horsepower values).
[[Page 24162]]
Table IV-7--Representative Units Analyzed in the Energy Use and Life-Cycle Cost Analyses
----------------------------------------------------------------------------------------------------------------
Rated
Representative unit Equipment class group Pole configuration horsepower
----------------------------------------------------------------------------------------------------------------
1....................................... Single-phase, CSCR........ 4-pole.................... 0.75
2....................................... Polyphase................. 4-pole.................... 1
3....................................... Single-phase, CSCR........ 4-pole.................... 1
4....................................... Polyphase................. 4-pole.................... 0.5
----------------------------------------------------------------------------------------------------------------
DOE seeks comments on how whether additions or changes should be
made to the energy use analysis as well as any data supporting
alternate inputs to characterize the variability in annual energy
consumption for small electric motors.
See section VII.B for a complete list of issues on which DOE seeks
comments. Chapter 7 of the TSD provides details on the DOE's energy use
analysis for small electric motors.
1. Consumer Sample
For each representative unit, DOE created consumer samples for
three individual sectors: Residential, commercial, and industrial. DOE
used the samples to determine small electric motor annual energy
consumption as well as for conducting the LCC and PBP analyses. Each
consumer in the sample was assigned a sector and an application. DOE
used data from the March 2010 Final Rule to establish distributions of
small electric motors by sector. Five main motor applications were
selected as representative applications (compressors, fans, pumps,
material handling, and others). In order to characterize the
distributions of small electric motors across applications in the
industrial sector, DOE used data from hundreds of field assessments
aggregated in two databases: (1) A database of motor nameplate and
field data compiled by the Washington State University (``WSU'')
Extension Energy Program, Applied Proactive Technologies, and New York
State Energy Research and Development Authority, and; (2) a database of
motor nameplate and field data compiled by the Industrial Assessment
Center at Oregon University (``field assessment data'').\35\ For the
commercial and residential sectors, DOE used data from a previous DOE
publication to estimate distribution of small electric motors by
application.\36\ DOE also assumed that 20 percent of consumers had
space-constraints and 80 percent were non-space-constrained based on
data from the March 2010 Final Rule. In response to the April 2019 ECS
RFI, DOE did not receive any data to support alternative distributions
of small electric motors by sectors and applications or by space-
constrained/non-space-constrained applications.
---------------------------------------------------------------------------
\35\ Strategic Energy Group (January 2008), Northwest Industrial
Motor Database Summary. Regional Technical Forum. Available at
https://rtf.nwcouncil.org/subcommittees/osumotor/Default.htm.
\36\ W. Goetzler, T. Sutherland, C. Reis. ``Energy Savings
Potential and Opportunities for High-Efficiency Electric Motors in
Residential and Commercial Equipment'' U.S. Department of Energy,
December 4, 2013. Available at https://energy.gov/sites/prod/files/2014/02/f8/Motor%20Energy%20Savings%20Potential%20Report%202013-12-4.pdf.
---------------------------------------------------------------------------
DOE seeks comment on the approach used for estimating distribution
of consumers of small electric motors across applications and sectors,
as well as any data supporting the use of alternate distributions.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 7 of the TSD for more details on the resulting
distribution of consumers by sector and applications.
2. Motor Input Power
DOE calculated the motor input power as the sum of the motor rated
horsepower multiplied by the motor operating load (i.e., the motor
output power) and of the losses at the operating load (i.e., part-load
losses). DOE determined the part-load losses using outputs from the
engineering analysis (full-load efficiency at each efficiency level)
and published part-load efficiency information from manufacturer
catalogs to model motor part-load losses as a function of the motor's
operating load. NEMA commented that there was a range of operating
motor loads for small electric motors and that there was no typical
operating load by application. NEMA did not provide data to
characterize operating load. (NEMA, No. 11 at p. 15) DOE estimated the
operating load using operating load data specific to motors in the
0.25-3 hp range, which was based on additional field assessments data
collected since the publication of the March 2010 Final Rule.\37\
---------------------------------------------------------------------------
\37\ This horsepower range was selected as it corresponds to the
motor horsepower of small electric motors that are currently subject
to standards (see section IV.A.1).
---------------------------------------------------------------------------
DOE seeks comment on the methodology used for estimating the
distribution of motor load for each application and sector, as well as
any data supporting alternate distributions.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 7 of the TSD for the resulting distribution of
load for each application.
3. Annual Operating Hours
NEMA commented that there was a range of operating hours for small
electric motors and noted that for this equipment, operating hours are
generally lower compared to electric motors and stated that most small
electric motors do not run continuously. NEMA did not provide data to
characterize operating hours. (NEMA, No. 11 at p. 15) For the
industrial sector, DOE used data specific to motors in the 0.25-3 hp
range from the field assessment data to establish distributions of
annual operating hours by application. For the commercial and
residential sectors, DOE used operating hours data from the March 2010
Final Rule.\38\
---------------------------------------------------------------------------
\38\ For more details see chapter 6 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
---------------------------------------------------------------------------
DOE seeks comment on the methodology used to estimate annual
operating hours, as well as any data supporting alternate distribution
of operating hours by application and sector.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 7 of the TSD for more details on the
distributions of annual operating hours by application and sector.
Table IV-8 shows the estimated average annual energy use at each
efficiency level analyzed.
[[Page 24163]]
Table IV-8--Average Annual Energy Use by Efficiency Level
----------------------------------------------------------------------------------------------------------------
Kilowatt-hours per year
Rep. unit Description -----------------------------------------------------------------
EL 0 EL 1 EL 2 EL 3 EL 4 EL5
----------------------------------------------------------------------------------------------------------------
1....................... Single-phase, CSCR, 1,651.6 1,626.2 1,596.7 1,582.0 1,534.4 1,507.5
4-pole, 0.75 hp.
2....................... Polyphase, 4-pole, 1 2,091.2 2,046.1 2,019.3 1,982.4 ......... .........
hp.
3....................... Single-phase, CSCR, 2,176.6 2,144.1 2,107.9 2,089.3 2,029.0 1,994.2
4-pole, 1 hp.
4....................... Polyphase, 4-pole, 1,164.9 1,129.8 1,108.3 1,079.4 ......... .........
0.5 hp.
----------------------------------------------------------------------------------------------------------------
F. Life-Cycle Cost and Payback Period Analysis
DOE conducted LCC and PBP analyses to evaluate the economic impacts
on individual consumers of potential energy conservation standards for
small electric motors. The effect of new or amended energy conservation
standards on individual consumers usually involves a reduction in
operating cost and an increase in purchase price. DOE used the
following two metrics to measure consumer impacts:
The LCC is the total consumer expense of equipment over
the life of that equipment, consisting of total installed cost (MSP,
distribution chain markups, sales tax, and installation costs) plus
operating costs (expenses for energy use, maintenance, and repair). To
compute the operating costs, DOE discounts future operating costs to
the time of purchase and sums them over the lifetime of the equipment.
The simple PBP is the estimated amount of time (in years)
it takes consumers to recover the increased purchase cost (including
installation) of more-efficient equipment through lower operating
costs. DOE calculates the simple PBP by dividing the change in purchase
cost at higher efficiency levels by the change in annual operating cost
for the year that amended or new standards are assumed to take effect.
For any given efficiency level, DOE measures the change in LCC
relative to the LCC in the no-new-standards case, which reflects the
estimated efficiency distribution of small electric motors in the
absence of new or amended energy conservation standards. In contrast,
the simple PBP for a given efficiency level is measured relative to the
baseline equipment. The analysis focuses on the four representative
units identified in Table IV-7.
For each considered efficiency level in each equipment class, DOE
calculated the LCC and PBP for a nationally representative set of
consumers. As stated previously, DOE developed a sample based on
distributions of consumers across sectors and applications, as well as
across efficiency levels. For each sample consumer, DOE determined the
unit energy consumption and appropriate energy price. By developing a
representative sample of consumers, the analysis captured the
variability in energy consumption and energy prices associated with the
use of small electric motors.
Inputs to the calculation of total installed cost include the cost
of the equipment--which includes MSPs, retailer markups, and sales
taxes--and installation costs. Inputs to the calculation of operating
expenses include annual energy consumption, energy prices and price
projections, repair and maintenance costs, equipment lifetimes, and
discount rates. DOE created distributions of values for equipment
lifetime, discount rates, and sales taxes, with probabilities attached
to each value, to account for their uncertainty and variability.
The computer model DOE uses to calculate the LCC and PBP relies on
a Monte Carlo simulation to incorporate uncertainty and variability
into the analysis. The Monte Carlo simulations randomly sample input
values from the probability distributions and consumer samples. The
model calculated the LCC and PBP for equipment at each efficiency level
for 10,000 consumers per representative unit per simulation run. The
analytical results include a distribution of 10,000 data points showing
the range of LCC savings for a given efficiency level relative to the
no-new-standards case efficiency distribution. In performing an
iteration of the Monte Carlo simulation for a given consumer, equipment
efficiency is chosen based on its probability. If the chosen equipment
efficiency is greater than or equal to the efficiency of the standard
level under consideration, the LCC and PBP calculation reveals that a
consumer is not impacted by the standard level. By accounting for
consumers who already purchase more-efficient equipment, DOE avoids
overstating the potential benefits from increasing equipment
efficiency.
DOE calculated the LCC and PBP for all consumers as if each were to
purchase a new motor in the expected year of compliance with amended
standards. For purposes of its analysis, DOE estimated that any amended
standards would apply to small electric motors manufactured 5 years
after the date on which the amended standard is published. DOE
estimated publication of a final rule in the first half of 2023.
Therefore, for purposes of its analysis, DOE used 2028 as the first
full year of compliance.
Table IV-9 summarizes the approach and data DOE used to derive
inputs to the LCC and PBP calculations. The subsections that follow
provide further discussion.
Table IV-9--Summary of Inputs and Methods for the LCC and PBP Analysis *
------------------------------------------------------------------------
Inputs Source/method
------------------------------------------------------------------------
Equipment Cost............................... Derived by multiplying
MSPs by distribution
channel markups and
sales tax, as
appropriate.
Installation Costs........................... Assumed no change with
efficiency level other
than shipping costs.
Annual Energy Use............................ Motor input power
multiplied by annual
operating hours per
year.
Variability: Based on
plant surveys and
previous DOE study.
[[Page 24164]]
Energy Prices................................ Electricity: Used average
and marginal prices
(Coughlin and Beraki).
Energy Price Trends.......................... Based on AEO 2019 price
projections.
Repair and Maintenance Costs................. Assumed no change with
efficiency level.
Equipment Lifetime........................... Estimated using
information from 2010
standards final rule and
from DOE's Advanced
Manufacturing Office.
Discount Rates............................... Residential: Approach
involves identifying all
possible debt or asset
classes that might be
used to purchase the
considered appliances,
or might be affected
indirectly. Primary data
source was the Federal
Reserve Board's Survey
of Consumer Finances.
Commercial: Calculated as
the weighted average
cost of capital for
entities purchasing
small electric motors.
Primary data source was
Damodaran Online.
Compliance Date.............................. 2028
------------------------------------------------------------------------
* References for the data sources mentioned in this table are provided
in the sections following the table.
1. Equipment Cost
To calculate consumer equipment costs, DOE multiplied the MSPs
developed in the engineering analysis by the distribution channel
markups described in section IV.D (along with sales taxes). DOE used
different markups for baseline motors and higher-efficiency motors,
because DOE applies an incremental markup to the increase in MSP
associated with higher-efficiency equipment. Further, in this proposed
determination, DOE assumed the prices of small electric motors would
remain constant over time (no decrease in price).
2. Installation Cost
Installation cost includes labor, overhead, and any miscellaneous
materials and parts needed to install the equipment. In response to the
April 2019 ECS RFI, DOE did not receive any information on small
electric motors consumer installation costs. Based on information from
the March 2010 Final Rule and installation cost data from RS Means
Electrical Cost Data 2019,\39\ DOE estimated that installation costs do
not increase with equipment efficiency except in terms of shipping
costs depending on the weight of the more efficient motor.\40\ To
arrive at total installed costs, DOE included shipping costs as part of
the installation costs. These were based on weight data from the
engineering analysis, which accounted for updated manufacturer catalog
data collected by DOE.
---------------------------------------------------------------------------
\39\ RS Means. Electrical Cost Data, 42\h\ Annual Edition, 2019.
Rockland, MA. p. 315.
\40\ For more details see chapter 8 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
---------------------------------------------------------------------------
DOE seeks comment on the methodology used to estimate installation
costs as well as any data supporting alternate installation cost
estimates.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 8 of the TSD for more information on the
installation costs for small electric motors.
3. Annual Energy Consumption
For each sampled consumer, DOE determined the energy consumption
for small electric motors in each standards case analyzed using the
approach described in section IV.E of this proposed determination.
4. Energy Prices
For electricity prices, DOE used national annual marginal and
average prices from Coughlin and Beraki (2019).\41\ To estimate energy
prices in future years, DOE multiplied the energy prices by a
projection of annual change in average price consistent with the
projections in the AEO 2019, which has an end year of 2050. To estimate
price trends after 2050, DOE used the average annual rate of change in
prices from 2030 to 2050.
---------------------------------------------------------------------------
\41\ See Coughlin, K. and B. Beraki. Residential Electricity
Prices: A Review of Data Sources and Estimation Methods. 2018.
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United
States). Report No. LBNL-2001169. (Last accessed May 21, 2019.)
https://ees.lbl.gov/publications/residential-electricity-prices-review. See also Coughlin, K. and B. Beraki. Non-residential
Electricity Prices: A Review of Data Sources and Estimation Methods.
2019. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United
States). Report No. LBNL-2001203. (Last accessed May 21, 2019.)
https://ees.lbl.gov/publications/non-residential-electricity-prices.
---------------------------------------------------------------------------
5. Maintenance and Repair Costs
Repair costs are associated with repairing or replacing small
electric motor components that have failed; maintenance costs are
associated with maintaining the operation of the equipment. Small
electric motors are usually not repaired. Most small motors are mass
produced and are not constructed or designed to be repaired because the
manufacturing process uses spot welding welds and rivets to fasten or
secure the frame and assembled components, not nuts and bolts--meaning
that the small electric motor cannot be readily disassembled and
reassembled. During the rulemaking for the March 2010 Final Rule, DOE
found no evidence that repair or maintenance costs, if any, would
increase with higher motor energy efficiency.\42\ DOE reviewed more
recent motor repair cost data for small electric motors and found no
evidence that maintenance and repair costs increase with efficiency for
small electric motors in scope.\43\ NEMA commented that for small
electric motor designs that simply added more active material to the
rotors and/or stators, repair practices are unlikely to change. NEMA
noted that CSCR motors have higher repair costs compared to CSIR motors
due to the inclusion of a second capacitor. NEMA did not provide any
[[Page 24165]]
additional information to characterize repair costs. (NEMA, No. 11 at
p. 15)
---------------------------------------------------------------------------
\42\ For more details see chapter 8 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
\43\ Vaughen's (2013), Vaughen's Motor & Pump Repair Price
Guide, 2013 Edition. Available at www.vaughens.com.
---------------------------------------------------------------------------
Based on information DOE reviewed, small electric motors are
generally not repaired and NEMA's comments suggest that repair
practices are unlikely to change within each equipment class group
(i.e., polyphase, CSCR, and CSIR). Accordingly, DOE assumed that more
efficient small electric motors would not have greater repair or
maintenance costs and therefore did not account for these costs in the
LCC calculation.
DOE seeks comment on the assumptions for estimating repair and
maintenance costs as well as any data supporting alternate repair and
maintenance cost estimates.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 8 of the TSD for more information on the repair
and maintenance costs for small electric motors.
6. Motor Lifetime
To characterize lifetimes in a manner that would reflect the fact
that this factor is dependent on its application, DOE used two Weibull
distributions.\44\ One characterizes the motor lifetime in total
operating hours (i.e., mechanical lifetime), while the other
characterizes the lifetime in years of use in the application (e.g., a
pump). DOE used mechanical lifetime data from the 2010 small electric
motors final rule analysis and from DOE's Advanced Manufacturing Office
\45\ and estimated an average mechanical lifetime of 30,000 hours for
CSCR motors and of 40,000 hours for polyphase motors. The Weibull
parameters from the March 2010 Final Rule were used to derive these
lifetime distributions.\46\ In the course of the life-cycle analysis,
DOE's current analysis further combines these two distributions with
OEM application lifetimes to estimate the distribution of small
electric motor lifetimes. DOE determined the mechanical lifetime of
each motor in years by dividing its mechanical lifetime in hours by its
annual hours of operation. DOE then compared this mechanical lifetime
(in years) with the sampled application lifetime (also in years), and
assumed that the motor would be retired at the younger of these two
ages. In the March 2010 Final Rule, this approach resulted in projected
average lifetimes of 7 years for single-phase CSCR motors and 9 years
for polyphase motors. In the April 2019 ECS RFI, DOE presented the
average lifetimes from the March 2010 Final Rule (i.e. 7 years for
single-phase CSCR motors and 9 years for polyphase motors). NEMA
commented that 8 years was a reasonable starting point to estimate
lifetime for small electric motors. NEMA did not provide lifetime
estimates by equipment class and noted that the actual lifetime is
heavily dependent on the application. (NEMA, No. 11 at p. 15). Because
of updates made to the annual operating hours (see section IV.E.3), the
updated analysis for this NOPD yielded average lifetimes of 6.6 years
for single-phase CSCR motors and 8.5 years for polyphase motors.
---------------------------------------------------------------------------
\44\ The Weibull distribution is one of the most commonly used
distributions in reliability. It is commonly used to model time to
fail, time to repair and material strength.
\45\ U.S. Department of Energy. Advanced Manufacturing Office.
Motors Systems Tip Sheet #3. Energy Tips: Motor Systems. Extending
the Operating Life of Your Motor. 2012. https://www.energy.gov/sites/prod/files/2014/04/f15/extend_motor_operlife_motor_systemts3.pdf.
\46\ For more details see chapter 8 of the 2010 small electric
motors final rule TSD, at https://www.regulations.gov/document?D=EERE-2007-BT-STD-0007-0036.
---------------------------------------------------------------------------
DOE seeks comment on the methodology it used for estimating small
electric motor lifetimes, as well as any data supporting alternate
values for these lifetimes.
See section VII.B for a complete list of issues on which DOE seeks
comments. See chapter 8 of the TSD for more information on the lifetime
of small electric motors.
7. Discount Rates
In calculating LCC, DOE applies discount rates appropriate to
commercial, industrial, and residential consumers to estimate the
present value of future operating costs. DOE estimated a distribution
of discount rates for small electric motors based on the cost of
capital of publicly traded firms in the sectors that purchase small
electric motors.
As part of its analysis, DOE also applies weighted average discount
rates calculated from consumer debt and asset data, rather than
marginal or implicit discount rates.\47\ DOE notes that the LCC does
not analyze the equipment purchase decision, so the implicit discount
rate is not relevant in this model. The LCC estimates net present value
over the lifetime of the equipment, so the appropriate discount rate
will reflect the general opportunity cost of household funds, taking
this time scale into account. Given the long time horizon modeled in
the LCC, the application of a marginal interest rate associated with an
initial source of funds is inaccurate. Regardless of the method of
purchase, consumers are expected to continue to rebalance their debt
and asset holdings over the LCC analysis period, based on the
restrictions consumers face in their debt payment requirements and the
relative size of the interest rates available on debts and assets. DOE
estimates the aggregate impact of this rebalancing using the historical
distribution of debts and assets.
---------------------------------------------------------------------------
\47\ The implicit discount rate is inferred from a consumer
purchase decision between two otherwise identical goods with
different first cost and operating cost. It is the interest rate
that equates the increment of first cost to the difference in net
present value of lifetime operating cost, incorporating the
influence of several factors: Transaction costs; risk premiums and
response to uncertainty; time preferences; interest rates at which a
consumer is able to borrow or lend.
---------------------------------------------------------------------------
To establish residential discount rates for the LCC analysis, DOE
identified all relevant household debt or asset classes in order to
approximate a consumer's opportunity cost of funds related to appliance
energy cost savings. It estimated the average percentage shares of the
various types of debt and equity by household income group using data
from the Federal Reserve Board's Survey of Consumer Finances \48\
(``SCF'') for 1995, 1998, 2001, 2004, 2007, 2010, 2013, and 2016. Using
the SCF and other sources, DOE developed a distribution of rates for
each type of debt and asset by income group to represent the rates that
may apply in the year in which amended standards would take effect.
---------------------------------------------------------------------------
\48\ Board of Governors of the Federal Reserve System. Survey of
Consumer Finances. 1995, 1998, 2001, 2004, 2007, 2010, 2013, and
2016. Available at: https://www.federalreserve.gov/econresdata/scf/scfindex.htm.
---------------------------------------------------------------------------
For commercial and industrial consumers, DOE used the cost of
capital to estimate the present value of cash flows to be derived from
a typical company project or investment. Most companies use both debt
and equity capital to fund investments, so the cost of capital is the
weighted-average cost to the firm of equity and debt financing. This
corporate finance approach is referred to as the weighted-average cost
of capital. DOE used currently available economic data in developing
discount rates. See chapter 8 of the TSD for details on the development
of end-user discount rates.
8. Efficiency Distribution in the No-New-Standards Case
To accurately estimate the share of consumers that would be
affected by a potential energy conservation standard at a particular
efficiency level, DOE's LCC analysis considered the projected
distribution (market shares) of equipment efficiencies in the ``no-new-
standards'' case (i.e., the case without amended or new energy
conservation standards) in the compliance year. In its analysis for the
March 2010 Final Rule,
[[Page 24166]]
DOE developed no-new standards case efficiency distributions based on
the distributions of currently available models for which small
electric motor efficiency is included in catalog listings. In
preparation for the NOPD, DOE collected updated catalog data and
analyzed the distribution of small electric motors in the manufacturer
catalog data for CSCR and polyphase small electric motors.\49\ In
response to the April 2019 RFI, DOE did not receive any input on
projected efficiency trends. DOE projected that these efficiency
distributions would remain constant throughout 2028. See chapter 8 of
the TSD for the estimated efficiency distributions.
---------------------------------------------------------------------------
\49\ DOE relied on 140 models of CSCR small electric motors and
229 models of polyphase small electric motors identified in the
manufacturer catalog data. More details on the distributions of
currently available models for which motor catalog list efficiency
is available in Chapter 8 of the TSD.
---------------------------------------------------------------------------
9. Payback Period Analysis
The PBP is the amount of time it takes the consumer to recover the
additional installed cost of more-efficient equipment, compared to
baseline equipment, through energy cost savings. PBPs are expressed in
years. PBPs that exceed the life of the equipment mean that the
increased total installed cost is not recovered in reduced operating
expenses.
The inputs to the simple PBP calculation for each efficiency level
are the change in total installed cost of the equipment and the change
in the first-year annual operating expenditures relative to the
baseline. The simple PBP calculation uses the same inputs as the LCC
analysis, except that discount rates are not needed.
G. Other Comments Received
In response to the April 2019 ECS RFI, DOE also received comments
on aspects of the standards for small electric motors that do not
relate to the methodologies or discussions presented in other sections
of this document. This section addresses these stakeholder comments.
The Institute for Policy Integrity commented on monetizing the
benefits of emissions reductions in analyzing the national impact and
selecting the maximum economically justified efficiency level.
(Institute for Policy Integrity, No. 5 at p. 1) DOE also received a
comment from an individual questioning how DOE would ensure that GHG
(i.e. greenhouse gas) emissions would not increase as a result of
amended standards. (Zach Belanger, No. 7 at p. 1)
As discussed previously, under the periodic review of energy
conservation standards required by EPCA, DOE is directed to consider
whether amended standards would result in significant conservation of
energy; are technologically feasible; and would be cost effective. (42
U.S.C. 6316(a); 42 U.S.C. 6295(m)(1) and 42 U.S.C. 6295 (n)(2)) In
evaluating the cost-effectiveness of amended standards, EPCA requires
DOE to consider the savings in operating costs throughout the estimated
average life of the covered equipment in the type (or class) compared
to any increase in price, initial charges, or maintenance expenses of
the covered equipment that are likely to result from the imposition of
the standard. (See 42 U.S.C. 6295(n)(2)(C) and 42 U.S.C.
6295(o)(2)(B)(II)) DOE has tentatively determined that the potential
standards would not be cost-effective as defined in EPCA. See section
V.B., infra. DOE has not conducted an emissions analysis as would
generally be performed were DOE to propose amended energy conservation
standards.
The CA IOUs suggested that DOE adopt a common metric between small
electric motors and electric motors. The CA IOUs commented that
different metrics create confusion and represent an additional burden
for the motor industry. The CA IOUs recommended consideration of a
single metric for both small electric motors and electric motors or
development of a new metric in consultation with industry. (CA IOUs,
No. 10 at p. 4)
The energy conservation standards for small electric motors at 10
CFR 431.446 are expressed in terms of average full-load efficiency,
while the standards for electric motors at 10 CFR 431.25 are expressed
in terms of nominal full-load efficiency. The nominal efficiency values
for electric motors are based on a sequence of discretized standard
values in NEMA Standard MG 1-2016 Table 12-10, and are familiar to
motor users. Under this approach, the full-load efficiency is
identified on the electric motor nameplate by a nominal efficiency
level selected from Table 12-10 that shall not be greater than the
average efficiency of a large population of motors of the same design.
However, NEMA has not adopted a comparable set of standardized values
for small electric motors. Because no standardized nominal values are
published for small electric motors, DOE is unable to consider at this
time their appropriateness as a small electric motor performance
metric. Absent standardized nominal values for small electric motors,
DOE is unable to ascertain whether existing energy conservation
standards would require the same level of stringency if based on
nominal values. Therefore, DOE is not proposing to amend the metric for
small electric motor energy conservation standards in this document.
Finally, DOE received a comment from an individual requesting
information on the RFI data collection process, specifically in
reference to the privacy of manufacturers and consumers. (Palubin, No.
2 at p. 1) As provided in the April 2019 ECS RFI, DOE accepted written
comments from the public on any subject within the scope of the small
electric motors energy conservation standards. The confidentiality of
comments submitted is addressed in section VII of this document,
including requests to have comments treated as confidential under 10
CFR 1004.11.
V. Analytical Results and Conclusions
The following section addresses the results from DOE's analyses
with respect to the considered energy conservation standards for small
electric motors examined by DOE.
A. Energy Savings
For each standards case considered, DOE estimated the per unit
lifetime energy savings for small electric motors purchased in the
expected compliance year of any potential standards. DOE did not
separately evaluate the significance of the potential energy
conservation under the considered amended standard because it has
tentatively determined that the potential standards would not be cost-
effective as defined in EPCA. (42 U.S.C. 6316(a); 42 U.S.C.
6295(m)(1)(A); 42 U.S.C. 6295(n)(2))
B. Cost Effectiveness
In general, higher-efficiency equipment affects consumers in two
ways: (1) Purchase price increases and (2) annual operating cost
decreases. Inputs used for calculating the LCC and PBP include total
installed costs (i.e., equipment price plus installation costs), and
operating costs (i.e., annual energy and water use, energy and water
prices, energy and water price trends, repair costs, and maintenance
costs). The LCC calculation also uses equipment lifetime and a discount
rate.
Table V-1 through Table V-7 show the LCC and PBP results for the
ELs considered for each equipment class. Results for each
representative unit are presented by two tables: In the first of each
pair of tables, the simple payback is measured relative to the baseline
equipment. In the second table, the impacts are measured relative to
the
[[Page 24167]]
efficiency distribution in the no-new-standards case in the expected
compliance year for the potential standards considered. Because some
consumers purchase equipment with higher efficiency in the no-new-
standards case, the average savings are greater than the difference
between the average LCC of the baseline equipment and the average LCC
at each EL. The savings refer only to consumers who are affected by a
standard at a given EL. Those who already purchase a small electric
motor with efficiency at or above a given EL are not affected.
Consumers for whom the LCC-increases at a given EL experience a net
cost.
Table V-1--Average LCC and PBP Results by Efficiency Level for Representative Unit 1: Single-Phase, CSCR, 4-Pole, 0.75 hp
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average costs 2018$
---------------------------------------------------------------- Simple payback Average
Efficiency Level Total First year's Lifetime years lifetime years
installed cost operating cost operating cost LCC
--------------------------------------------------------------------------------------------------------------------------------------------------------
0....................................................... 465.8 156.2 600.6 1,066.3 .............. 6.6
1....................................................... 481.8 153.8 591.4 1,073.2 6.7 6.6
2....................................................... 502.1 151.1 580.7 1,082.8 7.0 6.6
3....................................................... 544.4 149.7 575.4 1,119.8 12.0 6.6
4....................................................... 571.9 145.2 558.1 1,130.0 9.6 6.6
5....................................................... 1,403.1 142.7 548.3 1,951.4 69.2 6.6
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is measured
relative to the baseline equipment.
Table V-2--LCC Savings Relative to the No-New Standards Case Efficiency Distribution for Representative Unit 1:
Single-Phase, CSCR, 4-Pole, 0.75 hp
----------------------------------------------------------------------------------------------------------------
Life-cycle cost savings
-----------------------------------------------------------
Percent of customers that Average savings *
Efficiency level experience -----------------------------
------------------------------
Net cost (percent) 2018$
----------------------------------------------------------------------------------------------------------------
1................................................... 78.3 -6.8
2................................................... 81.8 -16.3
3................................................... 90.7 -53.3
4................................................... 89.8 -63.0
5................................................... 100.0 -884.3
----------------------------------------------------------------------------------------------------------------
* The savings represent the average LCC for affected consumers.
Table V-3--Average LCC and PBP Results by Efficiency Level for Representative Unit 2: Polyphase, 4-Pole, 1 hp
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average costs 2018$
---------------------------------------------------------------- Simple payback Average
Efficiency level Total First year's Lifetime years lifetime years
installed cost operating cost operating cost LCC
--------------------------------------------------------------------------------------------------------------------------------------------------------
0....................................................... 450.4 192.8 923.1 1,373.5 .............. 8.5
1....................................................... 519.7 188.7 903.2 1,423.0 16.7 8.5
2....................................................... 579.3 186.2 891.4 1,470.7 19.5 8.5
3....................................................... 1,386.3 182.8 875.2 2,261.4 93.6 8.5
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is measured
relative to the baseline equipment.
Table V-4--LCC Savings Relative to the No-New Standards Case Efficiency Distribution for Representative Unit 2:
Polyphase, 4-pole, 1 hp
----------------------------------------------------------------------------------------------------------------
Life-cycle cost savings
-----------------------------------------------------------
Percent of customers that Average Savings *
Efficiency level experience -----------------------------
------------------------------
Net cost (percent) 2018$
----------------------------------------------------------------------------------------------------------------
1................................................... 85.8 -49.4
2................................................... 98.7 -95.3
3................................................... 99.2 -885.4
----------------------------------------------------------------------------------------------------------------
* The savings represent the average LCC for affected consumers.
[[Page 24168]]
Table V-5--Average LCC and PBP Results by Efficiency Level for Representative Unit 3: Single-Phase, CSCR, 4-Pole, 1 hp
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average costs 2018$
----------------------------------------------------------------
Efficiency level Total First year's Lifetime Simple Average
installed operating operating LCC payback years lifetime years
cost cost cost
--------------------------------------------------------------------------------------------------------------------------------------------------------
0....................................................... 529.6 206.3 784.1 1,313.8 .............. 6.6
1....................................................... 547.9 203.3 772.5 1,320.3 5.9 6.6
2....................................................... 570.9 199.9 759.5 1,330.4 6.4 6.6
3....................................................... 619.1 198.1 752.8 1,371.9 10.9 6.6
4....................................................... 650.3 192.4 731.1 1,381.5 8.7 6.6
5....................................................... 1,594.9 189.1 718.6 2,313.5 61.9 6.6
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is measured
relative to the baseline equipment.
Table V-6--LCC Savings Relative to the No-New Standards Case Efficiency Distribution for Representative Unit 3:
Single-Phase, CSCR, 4-Pole, 1 hp
----------------------------------------------------------------------------------------------------------------
Life-cycle cost savings
-----------------------------------------------------------
Percent of customers that Average savings *
Efficiency level experience -----------------------------
------------------------------
Net cost (percent) 2018$
----------------------------------------------------------------------------------------------------------------
1................................................... 74.5 -6.5
2................................................... 78.8 -16.6
3................................................... 87.7 -58.0
4................................................... 86.8 -66.9
5................................................... 100.0 -998.9
----------------------------------------------------------------------------------------------------------------
* The savings represent the average LCC for affected consumers.
Table V-7--Average LCC and PBP Results by Efficiency Level for Representative Unit 4: Polyphase, 4-Pole, 0.5 hp
--------------------------------------------------------------------------------------------------------------------------------------------------------
Average costs 2018$
---------------------------------------------------------------- Simple payback Average
Efficiency level Total First year's Lifetime years lifetime years
installed cost operating cost operating cost LCC
--------------------------------------------------------------------------------------------------------------------------------------------------------
0....................................................... 374.2 107.3 510.8 885.0 .............. 8.4
1....................................................... 431.7 104.1 495.5 927.2 17.9 8.4
2....................................................... 481.3 102.1 486.0 967.3 20.6 8.4
3....................................................... 1,150.6 99.4 473.4 1,624.0 99.0 8.4
--------------------------------------------------------------------------------------------------------------------------------------------------------
Note: The results for each EL represent the average value if all purchasers in the sample use equipment with that efficiency level. The PBP is measured
relative to the baseline equipment.
Table V-8--LCC Savings Relative to the No-New Standards Case Efficiency Distribution for Representative Unit 4:
Polyphase, 4-Pole, 0.5 hp
----------------------------------------------------------------------------------------------------------------
Life-cycle cost savings
-----------------------------------------------------------
Percent of customers that Average savings *
Efficiency level experience -----------------------------
------------------------------
Net cost (percent) 2018$
----------------------------------------------------------------------------------------------------------------
1................................................... 88.2 -42.1
2................................................... 99.8 -80.5
3................................................... 100.0 -737.2
----------------------------------------------------------------------------------------------------------------
* The savings represent the average LCC for affected consumers.
C. Proposed Determination
For this proposed determination, DOE considered the amount of
energy savings conservation, technological feasibility, and cost
effectiveness of potential amended standards for small electric motors
at each considered EL. (42 U.S.C. 6316(a); 42 U.S.C. 6295(m)(1)(A) and
42 U.S.C. 6295 (n)(2)) As presented in the prior section, DOE projects
that the average customer purchasing a representative small electric
motor would experience an increase in LCC at each evaluated standards
case as compared to the no
[[Page 24169]]
new standards case. The simple PBP for the average of a representative
small electric motor customer at each EL is projected to be generally
longer than the mean lifetime of the equipment. Based on the above
considerations, DOE has tentatively determined that more stringent
amended energy conservation standards for small electric motors cannot
satisfy the relevant statutory requirements because such standards
would not be cost effective as required and described under EPCA. (See
42 U.S.C. 6295(n)(2) and (o)(2)(B)(II))
DOE seeks comment on its analysis indicating that increasing the
stringency of the energy conservation standards for small electric
motors are not cost effective.
VI. Procedural Issues and Regulatory Review
A. Review Under Executive Orders 12866
This proposed determination has been determined to be not
significant for purposes of Executive Order (``E.O.'') 12866,
``Regulatory Planning and Review.'' 58 FR 51735 (Oct. 4, 1993). As a
result, the Office of Management and Budget (``OMB'') did not review
this proposed determination.
B. Review Under Executive Orders 13771 and 13777
On January 30, 2017, the President issued E.O. 13771, ``Reducing
Regulation and Controlling Regulatory Costs.'' E.O. 13771 stated the
policy of the executive branch is to be prudent and financially
responsible in the expenditure of funds, from both public and private
sources. E.O. 13771 stated it is essential to manage the costs
associated with the governmental imposition of private expenditures
required to comply with Federal regulations.
Additionally, on February 24, 2017, the President issued E.O.
13777, ``Enforcing the Regulatory Reform Agenda.'' See 82 FR 12285
(March 1, 2017). E.O. 13777 required the head of each agency to
designate an agency official as its Regulatory Reform Officer
(``RRO''). Each RRO oversees the implementation of regulatory reform
initiatives and policies to ensure that agencies effectively carry out
regulatory reforms, consistent with applicable law. Further, E.O. 13777
requires the establishment of a regulatory task force at each agency.
The regulatory task force is required to make recommendations to the
agency head regarding the repeal, replacement, or modification of
existing regulations, consistent with applicable law. At a minimum,
each regulatory reform task force must attempt to identify regulations
that:
(1) Eliminate jobs, or inhibit job creation;
(2) Are outdated, unnecessary, or ineffective;
(3) Impose costs that exceed benefits;
(4) Create a serious inconsistency or otherwise interfere with
regulatory reform initiatives and policies;
(5) Are inconsistent with the requirements of the Information
Quality Act, or the guidance issued pursuant to that Act, particularly
those regulations that rely in whole or in part on data, information,
or methods that are not publicly available or that are insufficiently
transparent to meet the standard for reproducibility; or
(6) Derive from or implement Executive Orders or other Presidential
directives that have been subsequently rescinded or substantially
modified.
DOE initially concludes that this proposed determination is
consistent with the directives set forth in these executive orders. As
discussed in this document, DOE is proposing not to amend the current
energy conservation standards for small electric motors and this
proposal is estimated to have no cost impact. Therefore, if finalized
as proposed, this determination is expected to be an E.O. 13771 other
action.
C. Review Under the Regulatory Flexibility Act
The Regulatory Flexibility Act (5 U.S.C. 601 et seq.) requires
preparation of an initial regulatory flexibility analysis (``IRFA'')
and a final regulatory flexibility analysis (``FRFA'') for any rule
that by law must be proposed for public comment, unless the agency
certifies that the rule, if promulgated, will not have a significant
economic impact on a substantial number of small entities. As required
by Executive Order 13272, ``Proper Consideration of Small Entities in
Agency Rulemaking,'' 67 FR 53461 (Aug. 16, 2002), DOE published
procedures and policies on February 19, 2003, to ensure that the
potential impacts of its rules on small entities are properly
considered during the rulemaking process. 68 FR 7990. DOE has made its
procedures and policies available on the Office of the General
Counsel's website (https://energy.gov/gc/office-general-counsel).
DOE reviewed this proposed determination pursuant to the Regulatory
Flexibility Act and the procedures and policies discussed above. DOE
has tentatively concluded that, based on the data and available
information it has been able to review, amended energy conservation
standards for small electric motors would not be cost-effective.
Therefore, DOE is not proposing to amend the current energy
conservation standards for small electric motors. On the basis of the
foregoing, DOE certifies that this proposed determination, if adopted,
will not have a significant economic impact on a substantial number of
small entities. Accordingly, DOE has not prepared an IRFA for this
proposed determination. DOE will transmit this certification and
supporting statement of factual basis to the Chief Counsel for Advocacy
of the Small Business Administration for review under 5 U.S.C. 605(b).
D. Review Under the Paperwork Reduction Act
Manufacturers of small electric motors must certify to DOE that
their products comply with any applicable energy conservation
standards. In certifying compliance, manufacturers must test their
equipment according to the DOE test procedures, including any
amendments adopted for those test procedures. DOE has established
regulations for the certification and recordkeeping requirements for
all covered consumer products and commercial equipment, including small
electric motors. 76 FR 12422 (March 7, 2011); 80 FR 5099 (Jan. 30,
2015). The collection-of-information requirement for the certification
and recordkeeping is subject to review and approval by OMB under the
Paperwork Reduction Act (``PRA''). This requirement has been approved
by OMB under OMB control number 1910-1400. Public reporting burden for
the certification is estimated to average 30 hours per response,
including the time for reviewing instructions, searching existing data
sources, gathering and maintaining the data needed, and completing and
reviewing the collection of information.
Notwithstanding any other provision of the law, no person is
required to respond to, nor shall any person be subject to a penalty
for failure to comply with, a collection of information subject to the
requirements of the PRA, unless that collection of information displays
a currently valid OMB Control Number.
The proposed determination, which tentatively finds that amended
energy conservation standards for small electric motors would not be
cost effective, impose no new information or record keeping
requirements. Accordingly, the Office of Management and Budget (OMB)
clearance is not required under the Paperwork Reduction Act. (44 U.S.C.
3501 et seq.)
[[Page 24170]]
E. Review Under the National Environmental Policy Act of 1969
DOE is analyzing this proposed action in accordance with the
National Environmental Policy Act (``NEPA'') and DOE's NEPA
implementing regulations (10 CFR part 1021). DOE's regulations include
a categorical exclusion for actions which are interpretations or
rulings with respect to existing regulations. 10 CFR part 1021, subpart
D, appendix A4. DOE anticipates that this action qualifies for
categorical exclusion A4 because it is an interpretation or ruling in
regards to an existing regulation and otherwise meets the requirements
for application of a categorical exclusion. See 10 CFR 1021.410. DOE
will complete its NEPA review before issuing the final action.
F. Review Under Executive Order 13132
Executive Order 13132, ``Federalism,'' 64 FR 43255 (Aug. 10, 1999),
imposes certain requirements on Federal agencies formulating and
implementing policies or regulations that preempt State law or that
have federalism implications. The Executive Order requires agencies to
examine the constitutional and statutory authority supporting any
action that would limit the policymaking discretion of the States and
to carefully assess the necessity for such actions. The Executive Order
also requires agencies to have an accountable process to ensure
meaningful and timely input by State and local officials in the
development of regulatory policies that have federalism implications.
On March 14, 2000, DOE published a statement of policy describing the
intergovernmental consultation process it will follow in the
development of such regulations. 65 FR 13735. As this proposed
determination does not amend the standards for small electric motors,
there is no impact on the policymaking discretion of the States.
Therefore, no action is required by Executive Order 13132.
G. Review Under Executive Order 12988
With respect to the review of existing regulations and the
promulgation of new regulations, section 3(a) of Executive Order 12988,
``Civil Justice Reform,'' imposes on Federal agencies the general duty
to adhere to the following requirements: (1) Eliminate drafting errors
and ambiguity, (2) write regulations to minimize litigation, (3)
provide a clear legal standard for affected conduct rather than a
general standard, and (4) promote simplification and burden reduction.
61 FR 4729 (Feb. 7, 1996). Regarding the review required by section
3(a), section 3(b) of Executive Order 12988 specifically requires that
Executive agencies make every reasonable effort to ensure that the
regulation (1) clearly specifies the preemptive effect, if any, (2)
clearly specifies any effect on existing Federal law or regulation, (3)
provides a clear legal standard for affected conduct while promoting
simplification and burden reduction, (4) specifies the retroactive
effect, if any, (5) adequately defines key terms, and (6) addresses
other important issues affecting clarity and general draftsmanship
under any guidelines issued by the Attorney General. Section 3(c) of
Executive Order 12988 requires Executive agencies to review regulations
in light of applicable standards in section 3(a) and section 3(b) to
determine whether they are met or it is unreasonable to meet one or
more of them. DOE has completed the required review and determined
that, to the extent permitted by law, this proposed determination meets
the relevant standards of Executive Order 12988.
H. Review Under the Unfunded Mandates Reform Act of 1995
Title II of the Unfunded Mandates Reform Act of 1995 (``UMRA'')
requires each Federal agency to assess the effects of Federal
regulatory actions on State, local, and Tribal governments and the
private sector. Public Law 104-4, sec. 201 (codified at 2 U.S.C. 1531).
For a regulatory action likely to result in a rule that may cause the
expenditure by State, local, and Tribal governments, in the aggregate,
or by the private sector of $100 million or more in any one year
(adjusted annually for inflation), section 202 of UMRA requires a
Federal agency to publish a written statement that estimates the
resulting costs, benefits, and other effects on the national economy.
(2 U.S.C. 1532(a), (b)) The UMRA also requires a Federal agency to
develop an effective process to permit timely input by elected officers
of State, local, and Tribal governments on a ``significant
intergovernmental mandate,'' and requires an agency plan for giving
notice and opportunity for timely input to potentially affected small
governments before establishing any requirements that might
significantly or uniquely affect them. On March 18, 1997, DOE published
a statement of policy on its process for intergovernmental consultation
under UMRA. 62 FR 12820. DOE's policy statement is also available at
https://energy.gov/sites/prod/files/gcprod/documents/umra_97.pdf. This
proposed determination does not contain a Federal intergovernmental
mandate, nor is it expected to require expenditures of $100 million or
more in any one year by the private sector. As a result, the analytical
requirements of UMRA do not apply.
I. Review Under the Treasury and General Government Appropriations Act,
1999
Section 654 of the Treasury and General Government Appropriations
Act, 1999 (Pub. L. 105-277) requires Federal agencies to issue a Family
Policymaking Assessment for any rule that may affect family well-being.
This proposed determination would not have any impact on the autonomy
or integrity of the family as an institution. Accordingly, DOE has
concluded that it is not necessary to prepare a Family Policymaking
Assessment.
J. Review Under Executive Order 12630
Pursuant to Executive Order 12630, ``Governmental Actions and
Interference with Constitutionally Protected Property Rights,'' 53 FR
8859 (March 18, 1988), DOE has determined that this proposed
determination would not result in any takings that might require
compensation under the Fifth Amendment to the U.S. Constitution.
K. Review Under the Treasury and General Government Appropriations Act,
2001
Section 515 of the Treasury and General Government Appropriations
Act, 2001 (44 U.S.C. 3516, note) provides for Federal agencies to
review most disseminations of information to the public under
information quality guidelines established by each agency pursuant to
general guidelines issued by OMB. OMB's guidelines were published at 67
FR 8452 (Feb. 22, 2002), and DOE's guidelines were published at 67 FR
62446 (Oct. 7, 2002). DOE has reviewed this proposed determination
under the OMB and DOE guidelines and has concluded that it is
consistent with applicable policies in those guidelines.
L. Review Under Executive Order 13211
Executive Order 13211, ``Actions Concerning Regulations That
Significantly Affect Energy Supply, Distribution, or Use,'' 66 FR 28355
(May 22, 2001), requires Federal agencies to prepare and submit to the
Office of Information and Regulatory Affairs (``OIRA'') at OMB, a
Statement of Energy Effects for any significant energy action. A
``significant energy action'' is defined as any action by an agency
that promulgates or is expected to lead to promulgation of a final
rule, and that (1) is a significant regulatory action under Executive
Order 12866, or any successor order; and (2) is likely to have a
[[Page 24171]]
significant adverse effect on the supply, distribution, or use of
energy, or (3) is designated by the Administrator of OIRA as a
significant energy action. For any significant energy action, the
agency must give a detailed statement of any adverse effects on energy
supply, distribution, or use should the proposal be implemented, and of
reasonable alternatives to the action and their expected benefits on
energy supply, distribution, and use.
Because this proposed determination would not amend the current
standards for small electric motors, it is not a significant energy
action, nor has it been designated as such by the Administrator at
OIRA. Accordingly, DOE has not prepared a Statement of Energy Effects.
M. Review Under the Information Quality Bulletin for Peer Review
On December 16, 2004, OMB, in consultation with the Office of
Science and Technology Policy (``OSTP''), issued its Final Information
Quality Bulletin for Peer Review (``the Bulletin''). 70 FR 2664 (Jan.
14, 2005). The Bulletin establishes that certain scientific information
shall be peer reviewed by qualified specialists before it is
disseminated by the Federal Government, including influential
scientific information related to agency regulatory actions. The
purpose of the bulletin is to enhance the quality and credibility of
the Government's scientific information. Under the Bulletin, the energy
conservation standards rulemaking analyses are ``influential scientific
information,'' which the Bulletin defines as ``scientific information
the agency reasonably can determine will have, or does have, a clear
and substantial impact on important public policies or private sector
decisions.'' 70 FR 2667.
In response to OMB's Bulletin, DOE conducted formal in-progress
peer reviews of the energy conservation standards development process
and analyses and has prepared a Peer Review Report pertaining to the
energy conservation standards rulemaking analyses. Generation of this
report involved a rigorous, formal, and documented evaluation using
objective criteria and qualified and independent reviewers to make a
judgment as to the technical/scientific/business merit, the actual or
anticipated results, and the productivity and management effectiveness
of programs and/or projects. The ``Energy Conservation Standards
Rulemaking Peer Review Report'' dated February 2007 has been
disseminated and is available at: https://www.energy.gov/eere/buildings/peer-review.
VII. Public Participation
A. Submission of Comments
DOE will accept comments, data, and information regarding this
proposed determination no later than the date provided in the DATES
section at the beginning of this proposed determination. Interested
parties may submit comments, data, and other information using any of
the methods described in the ADDRESSES section at the beginning of this
document.
Submitting comments via https://www.regulations.gov. The https://www.regulations.gov web page will require you to provide your name and
contact information. Your contact information will be viewable to DOE
Building Technologies staff only. Your contact information will not be
publicly viewable except for your first and last names, organization
name (if any), and submitter representative name (if any). If your
comment is not processed properly because of technical difficulties,
DOE will use this information to contact you. If DOE cannot read your
comment due to technical difficulties and cannot contact you for
clarification, DOE may not be able to consider your comment.
However, your contact information will be publicly viewable if you
include it in the comment itself or in any documents attached to your
comment. Any information that you do not want to be publicly viewable
should not be included in your comment, nor in any document attached to
your comment. Otherwise, persons viewing comments will see only first
and last names, organization names, correspondence containing comments,
and any documents submitted with the comments.
Do not submit to https://www.regulations.gov information for which
disclosure is restricted by statute, such as trade secrets and
commercial or financial information (hereinafter referred to as
Confidential Business Information (``CBI'')). Comments submitted
through https://www.regulations.gov cannot be claimed as CBI. Comments
received through the website will waive any CBI claims for the
information submitted. For information on submitting CBI, see the
Confidential Business Information section.
DOE processes submissions made through https://www.regulations.gov
before posting. Normally, comments will be posted within a few days of
being submitted. However, if large volumes of comments are being
processed simultaneously, your comment may not be viewable for up to
several weeks. Please keep the comment tracking number that https://www.regulations.gov provides after you have successfully uploaded your
comment.
Submitting comments via email, hand delivery/courier, or postal
mail. Comments and documents submitted via email, hand delivery/
courier, or postal mail also will be posted to https://www.regulations.gov. If you do not want your personal contact
information to be publicly viewable, do not include it in your comment
or any accompanying documents. Instead, provide your contact
information in a cover letter. Include your first and last names, email
address, telephone number, and optional mailing address. The cover
letter will not be publicly viewable as long as it does not include any
comments.
Include contact information each time you submit comments, data,
documents, and other information to DOE. If you submit via postal mail
or hand delivery/courier, please provide all items on a CD, if
feasible, in which case it is not necessary to submit printed copies.
No telefacsimiles (faxes) will be accepted.
Comments, data, and other information submitted to DOE
electronically should be provided in PDF (preferred), Microsoft Word or
Excel, WordPerfect, or text (``ASCII'') file format. Provide documents
that are not secured, that are written in English, and that are free of
any defects or viruses. Documents should not contain special characters
or any form of encryption and, if possible, they should carry the
electronic signature of the author.
Campaign form letters. Please submit campaign form letters by the
originating organization in batches of between 50 to 500 form letters
per PDF or as one form letter with a list of supporters' names compiled
into one or more PDFs. This reduces comment processing and posting
time.
Confidential Business Information. Pursuant to 10 CFR 1004.11, any
person submitting information that he or she believes to be
confidential and exempt by law from public disclosure should submit via
email, postal mail, or hand delivery/courier two well-marked copies:
One copy of the document marked ``confidential'' including all the
information believed to be confidential, and one copy of the document
marked ``non-confidential'' with the information believed to be
confidential deleted. Submit these documents via email or on a CD, if
feasible. DOE will make its own determination about the confidential
status of the information and treat it according to its determination.
[[Page 24172]]
It is DOE's policy that all comments may be included in the public
docket, without change and as received, including any personal
information provided in the comments (except information deemed to be
exempt from public disclosure).
B. Issues on Which DOE Seeks Comment
Although DOE welcomes comments on any aspect of this proposal, DOE
is particularly interested in receiving comments and views of
interested parties concerning the following issues:
1. DOE seeks comment on the selection of representative equipment
classes for CSCR and polyphase motors and the tentative determination
that more stringent energy conservation standards for CSIR motors are
not technologically feasible.
2. DOE seeks comment on the methodologies employed in the
engineering analysis, specifically regarding the adoption of the motor
designs and associated efficiency levels considered in the March 2010
Final Rule analysis as the basis for this proposed determination.
3. DOE seeks input on whether and how the costs estimated for motor
designs considered in the March 2010 Final Rule have changed since the
time of that analysis. DOE also requests information on the investments
(including related costs) necessary to incorporate specific design
options, including, but not limited to, costs related to new or
modified tooling (if any), materials, engineering and development
efforts to implement each design option, and manufacturing/production
impacts.
4. DOE seeks input on implementing a similar scaling methodology as
that used for the March 2010 Final Rule in this NOPD.
5. DOE seeks comment on the methodology and data used for
estimating end-user prices for small electric motors.
6. DOE seeks comments on how whether additions or changes should be
made to the energy use analysis as well as any data supporting
alternate inputs to characterize the variability in annual energy
consumption for small electric motors.
7. DOE seeks comment on the approach used for estimating
distribution of consumers of small electric motors across applications
and sectors, as well as any data supporting the use of alternate
distributions.
8. DOE seeks comment on the methodology used for estimating the
distribution of motor load for each application and sector, as well as
any data supporting alternate distributions.
9. DOE seeks comment on the methodology used to estimate annual
operating hours, as well as any data supporting alternate distribution
of operating hours by application and sector.
10. DOE seeks comment on the methodology used to estimate
installation costs as well as any data supporting alternate
installation cost estimates.
11. DOE seeks comment on the assumptions for estimating repair and
maintenance costs as well as any data supporting alternate repair and
maintenance cost estimates.
12. DOE seeks comment on the methodology it used for estimating
small electric motor lifetimes, as well as any data supporting
alternate values for these lifetimes.
13. DOE seeks comment on its analysis indicating that increasing
the stringency of the energy conservation standards for small electric
motors are not cost effective.
14. Additionally, DOE welcomes comments on other issues relevant to
the conduct of this rulemaking that may not specifically be identified
in this document.
VIII. Approval of the Office of the Secretary
The Secretary of Energy has approved publication of this proposed
determination.
Signed in Washington, DC, on April 6, 2020.
Daniel R Simmons,
Assistant Secretary for Energy, Efficiency and Renewable Energy.
[FR Doc. 2020-08319 Filed 4-29-20; 8:45 am]
BILLING CODE 6450-01-P