PJM data center power cuts were part of a proposed emergency framework that U.S. federal regulators rejected on October 9, 2026. The Federal Energy Regulatory Commission (FERC) blocked key provisions that would have allowed certain newly connected large electricity customers to face earlier power curtailment during shortages.
However, FERC approved PJM Interconnection’s proposed definition of large electricity loads and a registry covering facilities with demand of at least 50 megawatts (MW) at a single site. The decision affects grid planning across PJM’s territory, which serves approximately 67 million people in the Mid-Atlantic and Midwest.
Why FERC Rejected the PJM Data Center Power Cuts Proposal
PJM proposed its Interim Resource Adequacy Service (IRAS) framework to address growing electricity demand from data centers and other large industrial customers. Under the proposal, qualifying new loads could potentially receive interim service without securing matching new generation capacity, provided they accepted additional curtailment obligations during periods of grid stress.
FERC rejected the framework because several provisions appeared to regulate retail electricity customers, determine which users would be disconnected first and establish compensation arrangements falling under state jurisdiction.
The commission also raised concerns about whether the proposed treatment of large customers would be unduly discriminatory.
According to the official FERC order, PJM must reconsider those issues before submitting a revised framework.
The decision does not prohibit every form of emergency electricity curtailment involving data centers. Instead, it rejects the particular federal tariff provisions submitted by PJM.
FERC accepted PJM’s large-load definition and registry while rejecting the proposed interim curtailment service and associated capacity provisions.
What FERC Approved and Rejected
The October 9 order separates PJM’s large-load reporting requirements from its proposed emergency service arrangements.
| Proposal | Decision | Impact |
|---|---|---|
| 50 MW Large-Load Definition | Approved | Establishes the threshold for identifying qualifying large electricity users. |
| Large Load Registry | Approved | Allows systematic collection of information about major electricity loads. |
| Interim Resource Adequacy Service | Rejected | Blocks the proposed interim service and associated early-curtailment framework. |
| Bring Your Own New Capacity Provisions | Rejected | Requires PJM to reconsider the proposed capacity-related tariff arrangements. |
Source: FERC Order 197 FERC ¶ 61,019, Docket ER26-3515-000, issued October 9, 2026.
The approved registry will help PJM identify where major electricity loads are located, when they are expected to begin operating and how quickly their demand could increase.
This information is important because data-center construction schedules can move faster than the development of generation and transmission infrastructure.
Data Center Electricity Demand Could Reach 29 GW
The regulatory decision comes as the region faces substantial electricity-supply challenges.
According to Reuters, PJM expects electricity demand from data centers within its territory to triple to approximately 29 gigawatts by 2030.
The region also faces a capacity-auction shortfall of approximately 6.8 gigawatts, increasing pressure on electricity markets and grid planners.
These figures represent forecasts and electricity-market conditions rather than proof that specific data centers will lose power.
The debate over PJM data center power cuts therefore reflects a broader challenge: accommodating energy-intensive AI infrastructure while maintaining electricity reliability and protecting existing customers.
Similar concerns about infrastructure capacity have emerged elsewhere in the United States. Servers.News previously covered Texas data-center permitting and electricity-grid reviews, where power availability and infrastructure requirements have become central regulatory questions.
What the Decision Means for Data Center Operators
For operators planning new facilities within PJM territory, the ruling creates an important distinction between electricity-demand reporting and emergency curtailment obligations.
Large facilities covered by the approved definition will become part of PJM’s registry framework. However, the rejected IRAS proposal cannot be treated as an approved mechanism for assigning priority power interruptions to new data centers.
Developers must still consider electricity-supply contracts, utility agreements, state requirements and potential delays in obtaining sufficient grid capacity.
As Utility Dive reported, PJM is reviewing the decision while considering how to address federal requirements and preserve the responsibilities of state regulators.
What Happens Next?
FERC’s approved large-load registry provisions became effective on October 12, 2026.
According to PJM’s published implementation schedule, a new registry tool is planned for February 1, 2027, with aggregated public information expected in March 2027.
These dates represent planned implementation milestones rather than confirmation that the systems are already operational.
PJM may submit a revised emergency curtailment proposal, but it would need to address the regulatory concerns identified by FERC.
The debate over PJM data center power cuts remains unresolved. For now, the electricity-demand registry is moving forward, while the proposed framework for prioritizing large-load disconnections has been rejected.
