Pennsylvania utility regulators have warned that rapid data center growth could cause blackouts in the state within the coming years, citing mounting strain on the PJM interconnection grid. The Pennsylvania Public Utility Commission identified the pace of new large-load interconnection requests as outpacing the grid's ability to add generation and transmission capacity. Officials have not yet specified which utilities or data center operators are most responsible for the demand surge.
A formal regulatory warning from Pennsylvania's PUC about blackout risk is a high-consequence signal for data center siting decisions across the mid-Atlantic region, where PJM serves roughly 65 million people. Developers, utilities, and state legislators across PJM territory will face increasing pressure to address load interconnection timelines.
Named regulatory body, specific blackout risk consequence, and grid reliability framing triggered selection. Note: the already-published list includes a PUC warning story; however, WHYY's article focuses specifically on the blackout framing and new regulatory statements distinct enough to warrant coverage. 1 similar article (WJAC) covering the same PUC concern was reviewed but not selected to avoid duplication.