Flex Alert Issued for Today and Tomorrow, July 24 & 25

July 24, 2018


Flex Alert issued for today and tomorrow, July 24 & 25

 Due to high temperatures in California and most of the western U.S., the California Independent System Operator Corporation (ISO) has issued a statewide Flex Alert that calls for voluntary electricity conservation, effective from 5 p.m. to 9 p.m. today.

The power grid operator has also issued a Flex Alert for tomorrow, Wednesday, July 25, from 5 p.m. to 9 p.m.

Consumers are urged to conserve electricity especially during the late afternoon and evening when air conditioners typically are at peak use. Consumers can help avoid power interruptions by turning off all unnecessary lights, using major appliances before 5 p.m. and after 9 p.m., and setting air conditioners to 78 degrees or higher.

The ISO has issued the Flex Alerts due to high temperatures across the western U.S., reduced electricity imports, tight natural gas supplies in the Southern California area, and high wildfire risk.

The ISO has called on all available resources to be available to serve demand, however, conservation is needed to reduce the risk of further emergency measures, including rotating power outages.

The ISO’s service territory serves about 80 percent of California’s electricity consumers.

For more electricity conservation tips, visit the ISO’s Flex Alert website at http://www.flexalert.org/save-energy.

Conservation Tips
• Set thermostat at 78° or higher and turn off, if away
• Cool with fans and draw drapes
• Turn off unnecessary lights and appliances
• Use major appliances in morning or late evening

Learn more: http://www.flexalert.org/ (Available in Spanish and Vietnamese)

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.

Consumers are urged to voluntarily conserve electricity to help avoid more serious steps to protect the power grid, including local rotating outages. However, take no action that threatens your health and safety.

Learn more about Flex Alerts and Stage Electrical Emergencies at http://www.caiso.com/Documents/EmergencyFactSheet.pdf.


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This advisory is based on the best data available at the time of its release. Grid conditions can change rapidly and are
subject to change without warning. This forecast is accepted by the recipient on the condition that errors, omissions
and/or changes to the contents shall not be made the basis for any claim, demand or cause of action against the California ISO.


Flex Alert issued for Tuesday and Wednesday, July 24 & 25