On December 18, 2025, the Federal Energy Regulatory Commission (FERC) directed PJM Interconnection, L.L.C. (PJM) to create new rules around the co-location of generation and data centers (FERC’s Dec. 18, 2025 Order, Docket Nos. EL25-49, AD24-11, EL25-20). With several proceedings pending at the Commission to address the growing demand for energy from large load entities—including major rulemaking proceeding directed by the Department of Energy (DOE) on October 23, 2025—FERC’s December 18 order offers the first window into how the Commission will address the challenges facing the nation’s electricity grid. These challenges include balancing resource adequacy, grid reliability, and fair cost allocation for any needed grid expansions to accommodate new AI-driven data centers. FERC is expected to issue a proposed rulemaking in the coming weeks with additional guidance on how it plans to shape the future of data center development in the U.S.



