By Cecilio Padilla

SACRAMENTO (CBS13) — Californians are being urged to conserve energy on Thursday as unseasonably hot temperatures are expected to spike electricity demand.

California’s Independent System Operator issued a statewide Flex Alert for 3 p.m. to 10 p.m.

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Temperatures are forecasted to be 15-25 degrees above the seasonal normal, Cal ISO says.

People are being urged to “pre-cool” their homes before 3 p.m., then set the thermostat at 78 degrees or higher after. Major appliances should be used later in the evening and unnecessary lights should be turned off.

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Rolling outages could occur if power demand exceeds the grid capacity, Cal ISO warns.

The Flex Alert comes even as one of the state’s largest utility companies, PG&E, instituted a Public Safety Power Shutoff in parts of 24 counties over wildfire concerns. The shutoffs started Wednesday evening and some 53,000 customers had their power cut.

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Cal ISO notes that PG&E shutoffs are not affecting the bulk electric system.