July 28 Evening Update: Maximum Generation Alert Canceled for PJM Footprint

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PJM has canceled its Maximum Generation Alert/Load Management Alert at 5 p.m. on July 28 along with the NERC EEA-1 alert, which is generally issued along with a Maximum Generation Alert.

PJM issued these alerts to help prepare generators for the onset of intense heat.

PJM served a preliminary peak load of around 145,000 MW on July 28.

A Hot Weather Alert remains in effect for PJM’s Mid-Atlantic and Southern Regions for July 29.

Original Story: July 28 Update on PJM Hot Weather Operations (Posted 12:05 a.m. July 28)

Amid continuing hot weather, PJM has extended its Maximum Generation Alert/Load Management Alert through July 28. The alert is an early notification that system conditions might require additional procedures.

With that alert, PJM also issued an EEA-1, which is a North American Electric Reliability Corporation alert that is generally issued with the PJM Maximum Generation Alert, and means that all generating resources are online or have been scheduled.

PJM has issued these alerts to help prepare generators for the onset of intense heat.

PJM served a preliminary peak load of around 148,000 MW on July 27, and is currently forecasting a peak of around 155,000 MW for July 28.

Hot Weather Alert Extended to July 29 for Mid-Atlantic and Southern Regions

PJM has also extended the Hot Weather Alert currently in effect for the RTO to July 29 for its Mid-Atlantic and Southern Regions.

A Hot Weather Alert helps to prepare transmission and generation personnel and facilities for extreme heat and/or humidity that may cause capacity problems on the grid. Temperatures are expected to be near or above 90 degrees in these regions, which drives up the demand for electricity.

The Mid-Atlantic Region is made up of the Atlantic City Electric, Baltimore Gas and Electric, Delmarva Power & Light, Jersey Central Power & Light, Met-Ed, Penelec, PECO Energy, Pepco, PPL Electric Utilities, PSE&G, and Orange & Rockland (Rockland Electric Company) transmission zones.

The PJM Southern Region consists of Dominion Virginia Power’s service territory.