ERCOT

Company

Last mentioned: Mar 24, 2026

Timeline

Mar 26, 2026
Forecasted Peak

National heat levels expected to peak before a cold front moves in from the Northwest.
Mar 24, 2026
Eastern Seaboard Impact

Record heat reaches the East Coast; utilities in PJM territory report unexpected load surges.
Mar 22, 2026
Midwest Expansion

The heat dome moves into the Great Plains; Chicago records its warmest March day in history.
Mar 20, 2026
Southwest Peak

Initial heat spike begins in Arizona and New Mexico, with temperatures hitting 95°F.

Stories mentioning ERCOT 1

Record-Shattering March Heatwave Grips Continental U.S., Straining Energy Grids

An unprecedented late-March heatwave is sweeping across the United States, with temperatures in many regions exceeding historical norms by 20 to 30 degrees. This early-season extreme weather event is raising urgent concerns regarding grid stability, agricultural cycles, and the accelerating pace of climate-driven volatility.

Mar 24, 2026 2 sources