Wisconsin Administrative Code
Department of Natural Resources
NR 400-499 - Environmental Protection - Air Pollution Control
Chapter NR 446 - Control Of Mercury Emissions
Subchapter III - Fired Electric Generating Units
Section NR 446.14 - Multipollutant reduction alternative for coal-fired electrical generating units
Universal Citation: WI Admin Code ยง NR 446.14
Current through August 26, 2024
(1) An owner or operator of a large or small coal-fired EGU may elect to meet the emission limitations in this section instead of the emission limitations of s. NR 446.12 or i n 446.13 accordance with the provisions of s. NR 446.17(2). The following annual emission limitations for NOx, SO2 and mercury apply to each unit for which the owner or operator makes an election under this section:
(a) For NOx, beginning
April 16, 2016, 0.07 pounds per mmBtu of heat input.
(b) For SO2, beginning
April 16, 2016, 0.10 pounds per mmBtu of heat input.
(c) For mercury emissions, all of the
following:
1. Beginning April 16, 2016 and to
December 31, 2017, a 70% mercury emission reduction as measured from the
mercury content of fuel combusted or 0.0190 pounds per gigawatt-hour
(1bs/GWh).
2. Beginning January 1,
2018 and to December 31, 2020, an 80% mercury emission reduction as measured
from the mercury content of fuel combusted or 0.0130 pounds per gigawatt-hour
(1bs/GWh).
3. Beginning January 1,
2021, a 90% mercury emission reduction as measured from the mercury content of
fuel combusted or 0.0080 pounds per gigawatt-hour (1bs/GWh).
(2) An owner or operator may achieve compliance with sub. (1) by either of the following methods:
(a)
Unit-by-unit
compliance. Demonstrating that the mercury, NOx and SO2 emissions from
each coal-fired EGU meet the applicable emission limitation in sub. (1) using
the measurement methods and calculation procedures in s.
NR 446.18.
(b)
Unit averaging.
Demonstrating that for each pollutant, the sum of the emissions from all
coal-fired EGUs subject to the emission limits in sub. (1) do not exceed the
sum of the annual allowable mercury, NOx or SO2 emissions for the coal-fired
EGUs using the measurement methods and calculation procedures in s.
NR 446.18.
Disclaimer: These regulations may not be the most recent version. Wisconsin may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.
