California ISO issues Flex Alert for tomorrow, Aug. 17, 2022

South San Francisco, CA  August 16, 2022 Alert

ESC Flex Alert

High heat expected; consumers urged to reduce energy use to protect grid

FOLSOM, Calif. – The California Independent System Operator (ISO) has issued a statewide Flex Alert, a call for voluntary electricity conservation, for tomorrow, Aug. 17, from 4 p.m. to 9 p.m., due to predicted high temperatures pushing up energy demand and tightening available power supplies.


With above-normal temperatures in the forecast across much of the state tomorrow, the power grid operator is expecting an increase in electricity demand, primarily from air conditioning use, and is calling for voluntary conservation steps to help balance supply and demand.


Consumers are urged to conserve electricity, especially during the late afternoon and early evening, when the grid is most stressed due to higher demand and less solar energy.


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


For information on Flex Alerts, and to get more electricity conservation tips, visit the ISO’s Flex Alert website.


Conservation Tips

Tomorrow, before 4 p.m., Californians should:

  • Pre-cool home by setting the thermostat to as low as 72 degrees
  • Use major appliances, including:
    • Washer and dryer
    • Dishwasher
    • Oven and stove for pre-cooking and preparing meals
  • Adjust blinds and drapes to cover windows


Tomorrow, during the Flex Alert from 4 p.m. to 9 p.m, Californians should:


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

Flex Alerts

A Flex Alert is issued by the ISO when the electricity grid is under stress because of generation or transmission outages, or from persistent hot temperatures.

Click here to learn more about emergency notifications. Follow grid conditions in real time at ISO’s Today’s Outlook, download the free ISO Today mobile app, and follow us on Twitter at @California_ISO.

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steve m
steve m
7 months ago

and make sure your cute little electric car is charged in case of a power shortage.
wash your clothes only when you can’t stand the smell anymore.
eat only cold food. warm food is overrated. use paper plates and plastic forks.
wait ! we can’t do that adds to the land fill. too cold? don’t use the heater ! put a coat on.
or snuggle up with someone. body heat is great. too hot ? jump in the bay salt water
is good for your skin I heard. never mind the junk floating out there it’s harmless.
we have to do all we can to save the planet. sarcasm of course . keep pushing
unreliable energy. good job keep it up .