The PJM Interconnection has issued a Hot Weather Alert for the entire region PJM serves for July 14 and 15 ahead of expected 90-plus-degree weather.
A Hot Weather Alert is an established 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. High temperatures are expected to reach into the 90s this week.
This procedure does not require any action from customers.
Forecasted Peaks
As of 10 a.m. on July 13, PJM is expecting to serve the following approximate peak loads on July 14 and 15:
Date Forecasted Peak Load
July 14 151,105 MW
July 15 162,699 MW
July 16 160,893 MW
July 17 154,942 MW
During a recent prolonged heat wave, PJM reached an all-time peak load estimated at 168,158 MW on July 2, according to preliminary figures that factor in demand response programs that serve to suppress electricity demand. PJM’s previous peak record was 165,563 MW, set on Aug. 2, 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, the grid operator said.
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.
PJM Interconnection is a regional transmission organization that coordinates the movement of wholesale electricity in all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia.
