Unrestricted peak

When PJM determines the official five coincident peaks in October, it uses unrestricted peaks: the load that would have occurred had demand-response programs not curtailed. On a day with heavy curtailment, the unrestricted peak can rank higher than the observed load suggests. Live standings built from observed load are honest about this: they can differ from the official determination on DR-heavy days, and the October publication settles it.

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