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PJM expects winter resources to meet normal demand, warns of tighter margins

The November 5 outlook forecasts a possible winter-record peak. Extreme-cold scenarios depend on generator performance and demand response, not an unconditional reliability guarantee.

By Greener Numbers Editorial Team · Published November 5, 2026 · Updated 11/5/2026

PJM says it expects enough resources to meet electricity demand this winter under expected conditions, while warning that reserve margins are tightening. Its November 5 winter outlook forecasts a peak of about 147,500 MW across its 13-state and District of Columbia footprint. If reached, that would exceed its winter record of 143,700 MW set on January 22, 2025.

The grid operator expects 182,426 MW of operational capacity and an average of roughly 3,200 MW of electricity exports to neighboring systems. Those exports add to the demand the system must serve; they are not extra imports available to cover PJM load. Operational capacity alone is not a guarantee of power availability during severe weather.

PJM also studied higher-stress scenarios with demand up to 152,200 MW and less generation available because of outages or weather-related renewable performance. It says those studies maintain reliability using both Pre-Emergency and Emergency Demand Response programs. That conditional finding is different from saying the system can meet every extreme-weather event without emergency measures.

Generator performance and transmission limits remain important. PJM singles out the BGE, Pepco and Dominion zones in Maryland, Virginia and the District of Columbia as areas where constraints can limit deliveries from elsewhere. It warns that outages on the scale of Winter Storm Elliott, about 46,000 MW, could leave the system vulnerable to power outages.

Demand Response pays participating customers in advance to reduce consumption when called. PJM says it activated this resource 15 times in 2025 and 2026, compared with eight times in the preceding eight years. It also says it has received Department of Energy authority to direct data centers and other large customers to use backup generators as a last resort, but has never used that authority.

The outlook links growing demand, generator retirements and slow new-project additions to eroding reserve margins. Forecast winter peak demand has risen by about 7,500 MW, or 5%, since 2022. PJM is expanding generator site visits, cold-weather readiness checks and coordination with gas pipelines. The assessment supports preparation under stated scenarios, not a promise of outage-free service or a forecast of household electricity bills.