The department gave a major grid manager the green light to require data centers to rely on backup power.

"PJM has implemented several alerts and actions to maintain reliable system operations..."

The U.S. Department of Energy has declared an emergency as a heat wave bears down on a huge part of the nation's electrical grid.

PJM says Thursday’s demand could break its 2006 summer hourly integrated record peak of 165,563 MW. The grid operator has recieved approval to curtail data centers and other large…

The department gave a major grid manager the green light to require data centers to rely on backup power.

As a punishing heatwave bakes major East Coast cities, US Energy Secretary Chris Wright directed data centers in the mid-Atlantic this week to use their backup power supplies…

PJM's power grid neared a 20-year demand record this week as a heat wave and surging data center growth strained the system.