Common Questions

What is FERC and what does it regulate?: The Federal Energy Regulatory Commission (FERC) is a US independent agency that regulates the interstate transmission of electricity, natural gas, and oil, and oversees wholesale electricity markets run by RTOs and ISOs across the continental US.Source: FERC official website
What is FERC Docket RM26-4-000 about?: RM26-4-000 is FERC's rulemaking to standardise how new electricity loads above 20 MW connect to the US interstate transmission grid. FERC committed to act by end of June 2026.Source: FERC
Why does FERC not have authority over ERCOT?: ERCOT operates as an island grid, with no synchronous interconnections to the Eastern or Western Interconnection, putting it outside FERC's interstate commerce jurisdiction under the Federal Power Act.Source: Federal Power Act
How will FERC's large load rulemaking affect data centres?: The RM26-4-000 order will determine whether hyperscalers can bypass standard interconnection studies, how behind-the-meter gas is treated for cost allocation, and who pays for grid upgrades triggered by large loads.Source: Mayer Brown legal analysis
What is the FERC large-load interconnection rulemaking?: FERC's Docket RM26-4-000 is a proceeding to standardise how new electricity loads above 20 MW connect to the US interstate transmission grid. Opened at Energy Secretary Wright's direction in October 2025, FERC committed to act by end of June 2026. It will bind every RTO and ISO except ERCOT.Source: FERC / Mayer Brown / data-centres update 2
Does FERC have authority over the Texas ERCOT grid?: No. ERCOT operates as an island grid outside both the Eastern and Western Interconnection, so it is not subject to FERC jurisdiction over interstate transmission. Data centre operators in West Texas can therefore avoid FERC's interconnection queue entirely.Source: FERC jurisdictional scope
Who directs FERC and how are its commissioners appointed?: FERC has five commissioners appointed by the President and confirmed by the Senate, serving staggered terms. The chair is Swett. FERC is independent of the executive branch but can be directed to open specific proceedings under Section 403 of the DOE Organisation Act.Source: FERC governance
Why are hyperscalers fighting the FERC interconnection queue?: Standard interconnection studies can delay grid connections by years and impose large cost-allocation charges on the connecting customer. Hyperscalers are seeking a fast-tracked large-load pathway that RM26-4-000 is intended to create; the contested question is whether that pathway shifts upgrade costs to existing ratepayers.Source: Mayer Brown / data-centres update 2
What happens if FERC's June 2026 grid ruling is challenged in court?: Prior FERC large-load interconnection reforms have been challenged and overturned. FERC's stated aim for RM26-4-000 was a ruling that is 'quick, efficient, and legally durable' — language acknowledging that legal durability is the critical uncertainty, not just the policy content.Source: FERC / data-centres update 2

Background

FERC announced on 16 April 2026 that it would act by end of June on Docket RM26-4-000, the rulemaking that will standardise how new electricity loads above 20 MW connect to the US interstate transmission grid. The proceeding was opened under Section 403 of the DOE Organisation Act by Energy Secretary Chris Wright in October 2025, but FERC moved roughly two months past the DOE's preferred 30 April deadline. The June order will bind every RTO and ISO in the continental US, making it the only federal lever capable of overriding the growing mosaic of municipal moratoriums on the grid-connection side.

FERC is an independent agency of the US federal government, established by the Federal Energy Regulatory Commission Act of 1977. It regulates the interstate transmission of electricity, natural gas, and oil, and oversees the wholesale electricity markets run by The Nation's RTOs and ISOs. Its five commissioners are appointed by the President and confirmed by the Senate. Critically, FERC's jurisdiction does not extend to ERCOT — the Texas grid operates outside both the Eastern and Western Interconnection, which is why West Texas data-centre projects can avoid FERC's interconnection queue entirely.

The RM26-4-000 rulemaking addresses three contested questions identified by legal analysts at Mayer Brown: whether hyperscalers can bypass standard interconnection studies; how behind-the-meter arrangements are treated for grid-exit cost allocation; and who pays for transmission upgrades that large loads trigger. The outcome will shape the economics of every new hyperscale data-centre campus connected to the US grid for the next decade. A ruling that is legally durable will accelerate large-load connections; one that is successfully challenged in court could stall them.

Source Material

Federal Energy Regulatory Commission FERC official website

How the World Sees Them

Europe

European grid operators are watching FERC's approach for a potential model; EU member-state TSOs face similar large-load queue pressures but lack a single cross-border regulator with equivalent override authority.

United States

Hyperscalers and utilities watch RM26-4-000 as the pivotal ruling: it will determine whether large-load interconnection accelerates or becomes subject to new cost-allocation rules that slow projects.