PJM will curtail 50‑MW+ data centers from June 2027 to avert blackouts
PJM Interconnection, the U.S.’s largest grid operator, announced it will temporarily cut power to data centers that draw 50 MW or more starting June 2027 when demand spikes. The move, intended to protect 67 million residential customers, forces big facilities to secure on‑site generation or rely on costly diesel backups, reshaping data‑center economics and capacity planning.