Plug In, Pay Up: FERC Rewrites the Rules

FERC commits to June 2026 rules standardizing how large electricity loads above 20 MW connect to the US grid

7 May 2026

America's electricity grid was designed for an era when the biggest new customer was a steel mill. Today it must absorb data centres hungry for 20, 50, even 100 megawatts apiece. FERC, the Federal Energy Regulatory Commission, has decided it can no longer manage this shift region by region, and has pledged to finalise a national framework for large-load grid connections by the end of June 2026.

At present, no uniform national standard governs how large electricity users queue for access, fund studies of their grid impact, or pay for upgrades their connections require. FERC has spent months assembling the building blocks. A December 2025 order forced PJM, the grid operator for 13 eastern states, to overhaul its rules for data centres sharing infrastructure with power generators. Southwest Power Pool, approved in January 2026, added a fast-track study process for large loads, giving regulators a working regional template to scale up.

Cost allocation is the hardest question. When a data centre demands new transmission infrastructure, the bill can run to hundreds of millions of dollars. Whether that burden falls on the customer alone or is spread across all ratepayers has large consequences for both electricity bills and industrial competitiveness. States add a second layer of friction, with many arguing that decisions about load connections belong under their authority, not Washington's.

Reliability concerns sharpen the deadline pressure. Grid failures in Virginia and Texas have shown that clusters of data centres can worsen instability during stress events rather than smooth it. NERC, North America's reliability watchdog, plans to issue interim operational guidance in May 2026, with permanent reliability standards and revised registry criteria due by December 31st.

A framework long overdue is now, at least, in sight. Whether it arrives before the next grid event is a different matter.