FILE - In this Aug. 18, 2017, file photo, electrical power flow and conditions are monitored at the California Independent System Operator (California ISO) grid control center in Folsom, Calif. A heat wave baking California in triple-digit temperatures continued to strain the electrical system Saturday, Aug. 15, 2020. But Saturday afternoon, the California ISO, which manages the power grid, said that it did not need to order power outages because the grid was able to handle consumer demand. (AP Photo/Rich Pedroncelli, File)

A jogger runs in extreme heat under high tension electrical lines in the North Hollywood section of Los Angeles on Saturday, Aug. 15, 2020. California has ordered rolling power outages for the first time since 2001 as a statewide heat wave strained its electrical system. (AP Photo/Richard Vogel)

Visitors crowd the beach in Manhattan Beach, Calif., amid the coronavirus pandemic Saturday. Aug. 15, 2020. The heat wave brought dangerously high temperatures, increased wildfire danger and fears of coronavirus spread as people flock to beaches and parks for relief. (AP Photo/John Antczak)