Weather & Science

Largest US Grid Declares Emergency Alert For July 27

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By Naureen S Malik

July 27, 2023 at 2:17 AM UTC

Updated on

July 27, 2023 at 1:13 PM UTC

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PJM Interconnection LLC has declared a level one emergency for the 13-state eastern US grid and called on all power plants to operate at full capacity Thursday during a heat wave.