Energy Chief Bolsters Carolinas’ Grid in Heat Wave

WASHINGTON-The U.S. Department of Energy (DOE) issued an emergency order to mitigate the risk of blackouts in the Carolinas amid hot weather conditions. Issued pursuant to Section 202(c) of the Federal Power Act, the order authorizes Duke Energy Carolinas, LLC (Duke) to dispatch specified resources and to order their operation as needed to maintain reliability. The order also authorizes Duke, in collaboration with its Transmission Owners, to direct backup generation resources to operate as a last resort before declaring an Energy Emergency Alert (EEA) 3 or during an EEA 3. This order was issued pursuant to an application from Duke submitted on September 18, 2026.

“Today’s order will help secure reliable electricity access for millions of American families and businesses across North and South Carolina by making additional power generation, including backup power, available to use as needed,” said U.S. Secretary of Energy Chris Wright. “It should come as no surprise that during the end of summer and early fall, there are fewer hours of daylight-and therefore, less power generation from solar power. The North American Electric Reliability Corporation and others have warned of the potential dangers late summer temperature spikes can pose to the grid when leaders prematurely retire reliable power sources. While past leaders’ energy subtraction policies have made the grid more vulnerable to blackouts when the sun doesn’t shine or the wind doesn’t blow, this administration remains committed to using every available tool to prevent blackouts.”

DOE estimates more than 35 GW of unused backup generation remains available nationwide.

The order is in effect upon issuance on September 18, 2026, through September 21, 2026.

Public Release.