Biggest US power grid auction prices rise by 22% to new heights

July 23, 2025

July 22 (Reuters) – Prices out of the biggest U.S. power auction, held by grid operator PJM Interconnection, cleared at $329.17 a megawatt-day, roughly 22% higher than last year’s record-high levels as electricity demand continues to outstrip supply, according to results released by the organization on Tuesday.

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