
FERC Blocks PJM’s Data Center Curtailment Rules, Citing State Jurisdiction
The Federal Energy Regulatory Commission (FERC) rejected the core components of PJM Interconnection’s plan to manage large loads, specifically the Interim Resource Adequacy Service (IRAS) framework. This framework allowed data centers to connect without matching new generation if they agreed to be curtailed during grid emergencies. FERC ruled that these provisions intrude on state jurisdiction over retail rates and discriminate against large customers. While FERC approved the definition of large loads and a registry system, it blocked the curtailment rules, potentially prolonging high capacity prices in the PJM region.









