California ISO issues statewide Flex Alert due to heat wave
The California Independent System Operator Corporation (ISO) has issued a statewide Flex Alert, a
call for voluntary electricity conservation from 2 p.m. to 9 p.m. on Tuesday, June 20, and Wednesday,
June 21.
Consumers are urged to conserve electricity especially during the late afternoon when air conditioners
typically are at peak use. Consumers can help avoid power outages by turning off all unnecessary lights,
using major appliances before 2 p.m. and after 9 p.m., and setting air conditioners to 78 degrees or
higher.
During times of high temperatures, demand on the power grid can be strained, as air conditioner use
increases. The forecast peak usage for Tuesday and Wednesday is expected to exceed 47,000
megawatts each day in California ISO’s service territory, which serves roughly 80 percent of electricity
customers.
For more electricity conservation tips, visit the ISO’s Flex Alert website at https://www.flexalert.org/saveenergy.
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: https://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
