Overview
- FERC issued unanimous show‑cause orders Thursday directing PJM, MISO, SPP, CAISO, ISO‑NE and NYISO to justify or revise rules for connecting loads above 20 megawatts and to file 30‑day capacity reports and 60‑day tariff responses.
- The orders require large customers such as AI data centers to pay the costs of any transmission upgrades they trigger so those costs are not socialized onto residential bills.
- FERC encouraged faster, standardized pathways including co‑location with generation and curtailable or flexible‑load arrangements that could shorten some approvals to about 60 days.
- The action stops short of regulating Texas’ ERCOT system, raises a likely federal‑state jurisdiction fight with state utility commissions, and prompts expectations of legal challenges or formal disputes.
- Analysts say the rules could shift where hyperscalers build, change utilities’ and infrastructure owners’ valuations, and heighten local fights over water, emissions and community impacts as grid planning races to keep up.