People can also spend time at a cooling center to reduce their reliance on home air conditioning, DWP said.
The request comes after past heat waves have caused widespread electricity disruptions in Los Angeles and elsewhere in California.
During a prolonged September 2024 heat wave, over 130,000 DWP customers lost power for a period before electricity was restored, ABC 7 reported at the time.
LADWP officials said extreme heat can cause electrical equipment to overheat, particularly when high overnight temperatures prevent equipment from cooling down, according to the station.
Those outages were different from the controlled rolling blackouts California experienced during an August 2020 heat wave.