‘Prepare Generators’: Largest US Power Grid Issues Emergency Alert

The largest electric grid operator in the United States declared an emergency alert for a second day amid high temperatures.

A National Weather Service map shows excessive heat alerts and advisories in effect as of July 28, 2023. Weather.gov

The largest electric grid operator in the United States declared an emergency alert for a second day amid high temperatures across the East Coast and Midwest.

On Friday, PJM Interconnection LLC, which serves 13 states, declared another Energy Emergency Alert Level 1 until the end of Friday. Excessive heat advisories and warnings cover a number of areas across those states—from Illinois to New Jersey.