Calif. residents fed up with mounting Flex Alerts

California’s power grid operator has issued a statewide alert urging residents to cut back electricity use Wednesday due to higher-than-normal temperatures expected in Northern California and tight energy supplies across the West.

Officials called for voluntary electricity conservation from 4 p.m. to 9 p.m. Wednesday to avoid rolling outages during the persistent heat, the California Independent System Operator said in a press release.

In order to avoid straining the state’s power grid, consumers are urged to turn off unnecessary lights, set air conditioner thermostats to 78 degrees or higher, and delay using major appliances until after 9 p.m., CAISO said.

“The conservation measures can help stabilize the power grid during a time of tight demand and supply and avoid power interruptions,” the release said.