People use more energy when it's hot and California's power grid operator has issued a Flex Alert because of the current heat wave.
Cal-Iso is the state's Independent System Operator. When the forecast for demand gets close to the state's power generating capacity, the operator calls a Flex Alert. Stephanie McCorkle with Cal-ISO says it's most important to conserve during the peak useage hours between 11 a.m. and 6 p.m., " Electricity is not something you can bottle up and store on a shelf. It is basically consumed the instant it is produced."
McCorkle says the power grid has a maximum capacity of 54,000 megawatts, but that there is almost never that amount actually available. The forecast demand for today (Friday) is about 47,000 megawatts.
A Flex Alert is also expected for Saturday and Sunday.
Click here to see the current supply and demand for power in California.