FERC orders six regional grid operators to justify rules for connecting data centers
The Federal Energy Regulatory Commission on June 18, 2026, ordered all six regional grid operators under its jurisdiction to justify or revise the tariffs they use to connect data centers, manufacturing facilities and other large electricity users to the power grid.
The orders open separate proceedings under section 206 of the Federal Power Act. They direct each regional transmission organization or independent system operator to show why its current rules are lawful and reasonable or propose changes. FERC said the action is intended to speed the integration of large electricity users while preserving reliability, affordability and protections for consumers.
The decision is a national response to rapidly growing electricity demand from artificial-intelligence data centers and industrial projects. It could influence how large-load customers connect to the grid, who pays for network upgrades and how existing customers are protected as electricity use rises.
Six power markets are covered
The proceedings apply to PJM Interconnection, the Midcontinent Independent System Operator, commonly known as MISO, the Southwest Power Pool, or SPP, ERCOT, the California Independent System Operator, or CAISO, and ISO New England.
Together, the six operators oversee multiple U.S. power markets rather than a single state or city. Their tariffs govern important parts of the process for connecting large new users, including the treatment of requested load, grid studies and potential system upgrades.
The orders do not approve faster connections for every data center. They also do not guarantee that new generation or transmission projects will be built. Instead, they begin regulatory proceedings in which the operators must defend their existing approaches or submit reforms. The operators may ultimately propose different changes and different timelines.
Why large-load connections are under review
AI data centers and other major facilities can require substantial amounts of electricity and may seek service on schedules that challenge established grid-planning processes. Faster connections can help projects obtain power sooner, but changes to those processes can also raise questions about reliability, upgrade costs and whether existing ratepayers bear expenses associated with new demand.
FERC said its action is designed to address those competing concerns. The commission’s stated goals include faster large-load integration alongside reliability, affordability and consumer safeguards. The practical effects will depend on what each operator files and what FERC later accepts, rejects or modifies.
FERC Chairman Laura Swett is among the commission officials associated with the action. The move also follows pressure for quicker power connections. The Associated Press reported that Energy Secretary Chris Wright had urged FERC to act on the issue.
Reliability concerns add urgency
The proceedings follow a rare Level 3 alert issued by the North American Electric Reliability Corporation in May 2026. The alert addressed unexpected data-center load losses and oscillating demand that created reliability concerns.
According to reporting on the alert, certain grid participants were directed to take seven actions by August 3, 2026. The alert provides a technical backdrop for FERC’s broader review: connecting large users is not only a question of how quickly a facility can receive power, but also how its changing demand affects grid operations.
The commission’s latest action builds on a December 2025 FERC order involving PJM and a subsequent SPP large-load initiative. Those earlier steps preceded the decision to open proceedings involving all six regional operators under FERC jurisdiction.
What happens next
The six operators must respond within the section 206 proceedings by defending their tariffs, proposing revisions or doing both as directed by the commission. The announcement does not establish a final tariff structure or a uniform national interconnection rule.
That means the central questions remain unresolved. The proceedings could produce different reforms across the six markets, and the timing of any changes is not yet established. The eventual effect on electricity customers, including the extent of any future ratepayer impact, will depend on the proposals and subsequent FERC decisions.
For data-center developers, manufacturers and other large industrial customers, the orders signal that their access to the grid is now under a coordinated national review. For households and other existing electricity users, the key issue is whether the reforms deliver new demand without shifting excessive reliability or infrastructure costs onto current ratepayers.
Sources
- FERC Launches Aggressive Targeted Action to Speed Large Load Integration, Federal Energy Regulatory Commission
- Federal regulators order grid operators to speed power to energy-hungry AI data centers, Associated Press
- NERC issues Level 3 alert, mandates action to address data center load losses, Utility Dive
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