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On September 30, 2025, the D.C. Circuit Court of Appeals denied a joint petition for review brought by Sierra Club and Appalachian Voices (together, Petitioners) challenging FERC’s grant of a certificate of public convenience and necessity (CPCN) to Tennessee Gas Pipeline Company (Tennessee Gas) to construct a new natural gas…

In the latest chapter in a long-running saga dealing with certain credits for transmission upgrades in the Southwest Power Pool (SPP), on September 18, 2025, FERC directed SPP to submit a compliance filing addressing certain aspects of SPP’s proposed plan (Refund Plan) for unwinding credit payment obligations assessed by SPP.

On July 11, 2025, the D.C. Circuit upheld PJM Interconnection L.L.C.’s (“PJM”) assessment of $12 million in penalties against Energy Harbor, LLC (“Energy Harbor”) for failing to perform when called upon by PJM during a major winter storm in December 2022. The D.C. Circuit held that PJM-approved maintenance at Energy Harbor’s coal-fired generation facility, the W.H. Sammis Plant (“Sammis Plant”), was not the sole cause of the Sammis Plant’s nonperformance, and therefore Energy Harbor was not excepted from penalties under PJM’s Open Access Transmission Tariff (“OATT”).

On June 18, 2025, FERC temporarily raised the cost limits for blanket certificate natural gas pipeline projects constructed and placed into service by May 31, 2027, from $41 million to $61.65 million. Citing what it called a pressing nationwide near-term demand for expanded natural gas transportation capacity and reliability concerns…

On May 23, 2025, FERC upheld on rehearing its prior orders authorizing Venture Global CP2 LNG, LLC to build a new liquified natural gas (“LNG”) export terminal (“CP2 LNG Terminal”) and granting Venture Global CP Express, LLC (together, with Venture Global CP2 LNG, LLC, “Venture Global”) a certificate of public convenience and necessity (“CPCN”) to construct and operate a new natural gas pipeline (“CP Express Pipeline,” together, with the CP2 LNG Terminal, the “Projects”) to connect the CP2 LNG Terminal to the existing natural gas pipeline grid (“May 23 Rehearing Order”). In its May 23 Rehearing Order, FERC continued to find that the Projects are environmentally acceptable actions and not inconsistent with the public interest.

On April 10, 2025, FERC addressed arguments on rehearing that clarified, but did not modify the outcome of, a November 1, 2024, order (“Rejection Order”) rejecting PJM Interconnection, L.L.C.’s (“PJM”) proposal to increase the co-located data center load at a Susquehanna Nuclear, LLC (“Susquehanna”) nuclear generating facility. FERC again found that PJM’s amended Interconnection Service Agreement’s (“ISA”) non-conforming provisions were not necessary deviations from the pro forma ISA. However, FERC did clarify that the Rejection Order did not prevent other entities from filing non-conforming ISAs to address issues relating to co-located data center load.

On February 20, 2025, FERC denied Great Basin Transmission, LLC’s (“Great Basin”) request for two transmission incentives for Great Basin’s Southwest Intertie Project-North Transmission Line and associated upgrades to Great Basin’s existing One Nevada Transmission Line (together, the “Project”). FERC found that Great Basin did not demonstrate that the Project…

On January 24, 2025, FERC reinstated a certificate of public convenience and necessity (“CPCN”) for Transcontinental Gas Pipe Line Company’s (“Transco”) Regional Energy Access Expansion Project (“Project”) after the D.C. Circuit vacated and remanded FERC’s initial order certificating the Project (“Certificate Order”).

In January 2023, FERC granted Transco a CPCN…