Topic: PJM

The Nation's Largest Power Grid Scrambles to Keep the Lights On in a July 4 Heat Wave

• As a dangerous heat wave settles over the eastern half of the country for the holiday weekend, PJM Interconnection — the grid operator for some 65 million people across the mid-Atlantic and Midwest — has escalated emergency measures to keep electricity flowing, with demand forecast to approach a two-decade record.
• No blackouts have occurred; the alerts are meant to prevent them.