On March 16, 2023, FERC found that Commonwealth Edison Company’s (“ComEd”) formula rate protocols under the PJM Interconnection, L.L.C. (“PJM”) Open Access Transmission Tariff (“OATT”) appear to be unjust and unreasonable and therefore directed ComEd to show cause as to why its formula rate protocols are just and reasonable or explain what changes to its formula rate protocols would remedy FERC’s concerns relating to the scope of participation, transparency, and challenge procedures.

On September 16, 2022, a panel of three judges on the United States Court of Appeals for the District of Columbia Circuit (“D.C. Circuit”) issued a decision in United Power, Inc. v. FERC affirming FERC’s exclusive jurisdiction over exit fees charged by Tri-State Generation and Transmission Association, Inc. (“Tri-State”), a Colorado generation and transmission cooperative.

On June 30, 2022, in a 6-3 decision, with Chief Justice John G. Roberts Jr. writing for the majority, the United States Supreme Court issued a decision in West Virginia v. EPA limiting the EPA’s ability to regulate carbon emissions from existing power plants. The Court’s decision could have significant implications for other executive branch agencies attempting to issue regulations that implicate “major questions.”