ISO

Joe Moore / Valley Public Radio

People use more energy when its hot, and Californias power grid operator has issued a Flex Alert because of the current heat wave. Cal-ISO is the states Independent System Operator. When the forecast for demand gets close to the states power generating capacity, the operator calls a Flex Alert. Stephanie McCorkle with Cal-ISO says its most important to conserve during the peak usage hours between 11:00 a.m. and 6:00 p.m. Electricity is not something you can bottle up and store on a shelf. It...