Margaret Anne Hill, Frank L. Tamulonis III, and Stephen C. Zumbrun ●
After seven years, three presidential administrations, and two appearances before the Supreme Court, the Obama Administration’s “Clean Power Plan” (“CPP”)—a Clean Air Act regulation designed to limit carbon emissions from existing coal-fired power plants (and later revised by the Trump-era “Affordable Clean Energy” (“ACE”) rule)—was struck down by the Supreme Court on June 30, 2022. See West Virginia et al. v. Environmental Protection Agency et al., No. 20-1530.
Relying on Section 111(d) of the Clean Air Act (“CAA”), the Environmental Protection Agency’s (“EPA’s”) CPP set a carbon emission limit that was essentially unattainable for existing coal-fired power plants. Consequently, EPA determined that the “best system of emission reduction” for carbon from these plants was to cause a “generation shift” from higher carbon emitting coal-fired sources to lower-emitting sources, such as natural gas plants or wind or solar energy facilities. Compliance with the CPP would have required a plant operator to: (1) reduce the amount of electricity the plant generated to reduce the plant’s carbon emissions; (2) build a new natural gas plant, wind farm, or solar installation, or invest in someone else’s existing facility and increase generation there; or (3) purchase emission allowances as part of a cap-and-trade regime. See West Virginia at 8.
Continue reading “Supreme Court Limits EPA’s Authority under the Clean Air Act”






On February 19, 2021, the United States Court of Appeals for the District of Columbia Circuit (“D.C. Circuit”) upheld a decision by the Federal Energy Regulatory Commission (“FERC” or the “Commission”) cutting transmission incentives previously granted to three electric transmission companies.






On July 16, 2020, the Federal Energy Regulatory Commission (“FERC” or “Commission”) issued Order No. 872 (“Order”), a final rule that significantly revised its rules implementing the Public Utility Regulatory Policies Act of 1978 (“PURPA”). Congress enacted PURPA to reduce the country’s reliance on oil and natural gas by promoting “Qualifying Facilities” (“QFs”) that rely on alternative energy sources or more efficient generation. Since their promulgation, FERC’s regulations implementing PURPA have been largely unaltered. FERC opined that the energy industry has substantially evolved since PURPA was promulgated and that the final rule is necessary to address the changing landscape and more closely align with underlying congressional intent.




