Michigan Administrative Code
Department - Licensing and Regulatory Affairs
Public Service Commission
Technical Standards For Gas Service
Part 8 - GAS QUALITY
Section R. 460.2382 - Heating value; authorized variations
Current through Vol. 25-4, March 15, 2025
Rule 82.
(1) The heating value of substitute natural gas and mixed gas must be considered as being under the control of the utility. The average heating value on 1 day must not be more than or less than the standard total heating value range set forth in the utility's rules. A utility shall not add air to a gas stream if this results in a heating value that is below 1,000 British thermal units per standard cubic foot.
(2) The average monthly heating value of gas that is supplied by a utility shall be 1,025 British thermal units per standard cubic foot, plus or minus 75 British thermal units. A greater variation may be approved by the commission upon a showing by the utility that the variation will not adversely affect the efficient and satisfactory operation of its customers gas utilization equipment.
