UPDATE: Hot Weather Alert Issued for July 6-7


PJM has issued a Hot Weather Alert for the region it serves for both July 6 and July 7 from 7 a.m. to 11 p.m. each day.

Hot Weather Alerts are issued when temperatures are expected to exceed 90 degrees Fahrenheit with high humidity, driving up demand for electricity.

What Is a Hot Weather Alert?

A Hot Weather Alert prepares transmission or generation facilities for extreme hot or humid conditions which may pose capacity issues for the grid. To reliably serve demand, transmission and generation operators determine whether maintenance or testing may be deferred or canceled. PJM’s reserve resources are available to cover for generation that may be unexpectedly unavailable or to help meet demand that is higher than forecasted.

Preparing for Summer Demand

The summer, PJM system operators are prepared to serve a forecasted summer peak demand of around 148,000 MW. Last summer’s peak demand measured more than 151,000 MW on July 19. One megawatt can power approximately 800 homes.

Read more about how PJM is prepared to meet the demand for electricity this summer and maintain system reliability.

Tools to Track PJM Operations

Track PJM’s markets and operations in real time on the Markets and Operations page on PJM.com or through the PJM Now app for iPhone and Android. Learn more about how PJM prepares for summer operations on the Learning Center.