DOE issues emergency order to keep Pennsylvania coal units online through November amid Mid-Atlantic grid reliability concerns
Image generated with artificial intelligenceU.S. Energy Secretary Chris Wright issued an emergency order on August 21, 2026, directing PJM Interconnection and Constellation Energy to keep two natural gas- and oil-fired units at Pennsylvania’s Eddystone Generating Station available to operate. The order takes effect August 23 and runs through November 20, 2026. It’s aimed at protecting grid reliability across the Mid-Atlantic region—where DOE officials say the power supply is under real strain.
Emergency order issued to preserve Mid-Atlantic grid capacity
Energy Secretary Chris Wright signed the emergency order on August 21, 2026, directing PJM Interconnection—in coordination with Constellation Energy—to keep Eddystone Units 3 and 4 running. The two natural gas- and oil-fired generators sit in Pennsylvania and had already passed their original retirement date of May 31, 2025. Instead of going dark, they’re now required to stay available through November 20, 2026.
The order took effect August 23. That narrow gap between signing and implementation says something about how urgent DOE considered the situation. Wright framed the move as a commitment to keeping power available when demand peaks: “regardless of whether the wind is blowing or the sun is shining,” he said in the statement accompanying the order.
That provision shows DOE trying to balance reliability concerns against affordability, rather than simply mandating expensive generation without regard for price.
Why DOE invoked emergency authority
DOE pointed to critical grid reliability issues in the Mid-Atlantic as the core justification. Recent heat waves pushed regional electricity demand under serious stress, and the department noted that coal, natural gas, and nuclear were the sources that held the line during those high-demand periods. Losing dispatchable capacity right now carries real risk—and DOE didn’t leave that implication unstated.
The order also includes a directive to use economic dispatch—a method of prioritizing power sources by cost—to limit what consumers pay. That provision shows DOE trying to balance reliability concerns against affordability, rather than simply mandating expensive generation without regard for price.
DOE’s own Resource Adequacy Report provides the broader policy backdrop. According to that report, power outages could increase by 100 times by 2030 if the U.S. keeps retiring reliable generation faster than new dependable capacity comes online. That projection clearly informed Wright’s decision to act.
Consequences for the Mid-Atlantic power grid
Keeping Eddystone Units 3 and 4 available reduces near-term blackout risk across a large, densely populated service territory. PJM Interconnection is the regional transmission organization responsible for grid reliability across parts of 13 states and Washington, D.C.—one of the largest electricity markets in the world. Any reliability shortfall there affects tens of millions of people.
The order covers the late-summer and fall window, a stretch when demand doesn’t always drop off as fast as you’d expect. Heat can linger into September, and the transition to cooler weather isn’t always smooth. Extra dispatchable capacity during that period gives grid operators more flexibility to handle unexpected demand spikes or sudden generation shortfalls.
On costs, the economic dispatch requirement acts as a guardrail. Operators are directed to deploy the Eddystone units in a cost-conscious way rather than running them at full tilt regardless of market conditions. It won’t eliminate any cost impact entirely, but it should moderate it.
Background: Retiring generation and reliability policy
Eddystone Units 3 and 4 were originally set to retire on May 31, 2025. That date came and went, and the units have been kept in some form of operational readiness beyond their planned end date. The August 21 emergency order formalizes their continued availability for another several months.
The DOE Resource Adequacy Report underpins much of the department’s concern. The core argument is straightforward: plant retirements are accelerating, and new reliable capacity isn’t being added fast enough to replace what’s being lost. Shrinking supply margins leave the grid more vulnerable to exactly the kind of stress that recent heat waves created.
The Trump administration has made fuel diversity and dispatchable generation central themes of its energy policy. Dispatchable sources—coal, natural gas, nuclear—can be ramped up on demand, which is a fundamentally different profile from solar and wind, both of which generate power only when conditions allow. The administration has consistently argued that a reliable grid needs a mix that includes always-available sources.
Emergency orders under the Federal Power Act give the Energy Secretary authority to intervene in grid reliability emergencies for limited periods. The law is designed for situations where normal market mechanisms aren’t moving fast enough to address an imminent threat to supply. DOE’s use of that authority fits within that framework—though orders of this type are relatively rare and tend to draw attention precisely because they override normal market dynamics.
A federal emergency order
The core facts: two natural gas- and oil-fired units at Eddystone, Pennsylvania, that should have retired in May 2025 are now required to stay available through November 20, 2026, under a federal emergency order. Energy Secretary Chris Wright signed it on August 21, 2026. PJM Interconnection and Constellation Energy are the parties directed to comply.
The Department of Energy justified the action by citing grid reliability stress in the Mid-Atlantic, heat wave pressure on demand, and its own Resource Adequacy Report projecting a dramatic increase in outage risk by 2030 if reliable generation keeps retiring. An economic dispatch requirement is included, intended to limit cost impacts on consumers.
The order is temporary. It doesn’t resolve the longer-term question of how the Mid-Atlantic grid replaces retiring capacity—but it buys time through the end of the high-risk fall period.
Kelly is an experienced writer with 15 years of experience exploring the big stories that shape our world, from tech breakthroughs and space exploration to climate, energy, and the fascinating quirks of science. She has a talent for turning complex ideas into sharp, memorable insights that stay with readers long after they’ve finished reading.
