PJM gets green light to push data centers onto back-up power during heat wave

By: Christine Condon

Outlets: Maryland Matters

Published: June 30, 2026

Words: 568

Last Updated: 3 weeks, 1 day ago

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The nation’s largest electricity grid — which includes Maryland, Washington D.C, and a dozen other states — received a green light from the Trump administration on Tuesday to require data centers and other large customers to turn on back-up generators during this week’s heatwave.

The order, signed by U.S. Secretary of Energy Chris Wright, allows PJM Interconnection to tap into diesel back-up generators, battery arrays and more as a “last resort” to prevent …

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