PJM has issued a Hot Weather Alert for its Mid-Atlantic and Southern regions for April 14–16 ahead of forecasted unusually warm and humid spring weather.
A Hot Weather Alert is a routine procedure PJM issues ahead of forecasted hot weather and/or high humidity to prepare transmission and generation personnel and facilities for expected increases in electricity demand, or load.
This procedure does not require any action from customers.
Temperatures are expected to approach 90 degrees in these regions, which is atypical for mid-April.
PJM’s 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)
As of 11 a.m. on Friday, April 10, PJM expects to serve the following loads April 14–16:
- Tuesday, April 14: 109,968MW
- Wednesday, April 15: 114,045 MW
- Thursday, April 16: 112,954 MW
PJM’s record summer peak is 165,563 MW, set in 2006.
A dedicated team of operators uses sophisticated technology to balance supply and demand and direct the power grid 24/7 from PJM’s control rooms. They prepare multiple potential scenarios that could be impacted by weather, emergency conditions or equipment failure. They adjust resource output with changes in demand and ensure that no transmission lines or facilities are overloaded. The team also watches for unusual conditions and reacts to them to protect the electricity supply.
Read more about PJM’s emergency procedures and messages (PDF).