LOS ANGELES (AP) - Managers of California's electrical grid have issued a statewide call for power conservation due to an intensifying heat wave.
The California Independent System Operator says a so-called "Flex Alert" is being declared for Friday through Sunday, but conservation will also be helpful during Thursday afternoon's peak hours when air conditioners drive energy consumption.
Valleys and inland areas have been sweltering in triple-digit highs all week under the influence of strong high pressure over the southwestern U.S. Forecasters say the heat combined with rising humidity will continue through the weekend.
The heat is on as the San Onofre nuclear plant remains offline due to problems with its steam generators.
The "Flex Alert" is intended to prevent operating reserves from falling to the point that a Stage 1 Emergency occurs.
Copyright 2015 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.