Flex Alert Today Due to Power Shortage: Do Not Charge Electric Vehicles

Power grid officials are telling customers to brace for potential blackouts as the state’s grid faces capacity constraints over the Labor Day weekend.

California Independent System Operator (CAISO) has announced that the state’s grid is projected to exceed 48,000 megawatts next Monday, the highest of the year.

In what’s likely to be the most extensive heat wave so far in the West this year, temperatures in Northern California are expected to be 10-20 degrees warmer than normal through Tuesday, Sept. 6.

In Southern California, temperatures are expected to be 10-18 degrees warmer than normal. Death Valley is currently forecast to peak at 126 degrees on Saturday, which would tie the highest temperature ever recorded on Earth in the month of September.

Los Angeles flex alert
Today’s Flex Alert is scheduled between 4 p.m. and 9 p.m., when the grid is most stressed from higher demand and less solar energy. During that time, consumers are urged to conserve power by setting thermostats to 78 degrees or higher, if health permits, avoiding use of major applicances and turning off unnecessary lights. They should also avoid charging electric vehicles while the Flex Alert is in effect.

To minimize discomfort and help with grid stability, consumers are also encouraged to pre-cool their homes and use major appliances and charge electric vehicles and electronic devices before 4 p.m., when conservation begins to become most critical.

Reducing energy use during a Flex Alert can help stabilize the power grid during tight supply conditions and prevent further emergency measures, including rotating power outages.

Flex Alert Conservation Actions

From 4 p.m. to 9 p.m.:

  • Set thermostat to 78 degrees or higher, if health permits
  • Avoid using major appliances and charging electric vehicles
  • Turn off all unnecessary lights

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