San Diego

Cal ISO Issues Flex Alert for Friday, Calling for Voluntary Power Conservation

Several days of extreme heat are in this week's forecast

What to Know

  • Flex Alert in effect Friday, 1 p.m. to 10 p.m.
  • Set thermostat to 78 degrees or higher
  • Use major appliances only late in the evening or early in the morning

The state's independent system operator issued a statewide Flex Alert for Friday afternoon due to a heat wave that has contributed to power outages this week.

With temperatures climbing into triple-digits across much of Southern California, California ISO issued the call for voluntary electricity conservation from 1 p.m. to 10 p.m. Friday. Consumers are asked to conserve power during late afternoon, when air conditioners are usually at peak use.

Record power demands is expected Friday, according to Cal ISO.

"Power supply conditions will be tight Friday and so will be the natural gas supply in Southern California," the agency's statement said. "Southern California Gas Company and the ISO are following the processes established to manage gas supply in the LA Basin during the limitations placed on the Aliso Canyon natural gas storage facility."

Aliso Canyon is in the Porter Ranch area northwest of Los Angeles.

Power Conservation Tips

  • Power outages can occur during periods of high heat when residents and businesses crank up their air conditioners at the same time. According to the LADWP conservation is particularly essential from 11 a.m. to 6 p.m.
  • Turn thermostats to 78 degrees or higher.
  • Turn off unnecessary lights.
  • Adjust water heaters to 120 degrees.
  • Use major appliances only late in the evening or early in the morning
  • Turn off pool pumps.

Record-breaking heat will continue across Southern California, with LA County temperatures up to 18 degrees above normal. Excessive heat warnings are in effect throughout the region.

The heat wave is expected to continue into the weekend and, possibly, next week. The warmest temperatures will be in the valleys and the mountains at lower elevations

Residents are urged to protect themselves from the heat by scheduling arduous outdoor activities for the early morning or evening hours, wearing light-colored and light weight clothing, drinking plenty of water, checking on friends and neighbors, especially the elderly, and by never leaving children, seniors or pets in parked vehicles.  

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