PJM has issued a Hot Weather Alert for parts of PJM’s Western Region for July 6 and a Hot Weather Alert for PJM’s Mid-Atlantic and Southern regions for July 7 ahead of expected hot and humid weather.
A Hot Weather Alert is a routine procedure PJM issues ahead of forecasted 90-plus-degree weather and/or high humidity to prepare transmission and generation personnel and facilities for expected increases in electricity demand, or load.
The July 6 Hot Weather Alert affects the following transmission zones and control areas:
- AES Ohio – formerly Dayton Power & Light
- American Electric Power (AEP Ohio, Appalachian Power, Indiana Michigan Power and Kentucky Power)
- American Municipal Power Transmission
- Cleveland Public Power
- Duke Energy Ohio and Duke Energy Kentucky
- Duquesne Light Company
- East Kentucky Power Cooperative
- FirstEnergy South – formerly Allegheny Power Systems (West Penn Power, Mon Power, Potomac Edison)
- FirstEnergy West – formerly American Transmission Systems, Inc. (Penn Power, Ohio Edison, The Illuminating Company and Toledo Edison)
- Ohio Valley Electric Corporation
- Wabash Valley Power Authority
The July 7 Hot Weather Alert affects PJM’s Mid-Atlantic and Southern regions. The Southern Region is made up of the Dominion transmission zone. The Mid-Atlantic Region is made up of the following transmission zones:
- 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
- Orange & Rockland (Rockland Electric Company)
Read more about PJM’s emergency procedures and messages (PDF).