Let’s Do Our Part To Prevent Rotating Power Outages

The City of Rancho Mirage Mayor and City Council are urging residents and businesses to please do your part to reduce energy consumption during this historic heat wave. Rotating power outages are projected if consumption during “peak hours” of 3:00 thru 10:00 p.m. is not reduced. The below information and recommendations are simple ways to reduce the demand during this critical time. Please take the time to read and implement those recommendations as soon as possible.
Very hot weather is expected to continue for most of Southern California through Wednesday, causing stress on the power grid. As the West Coast continues to experience an historic heat wave and related energy shortages, Governor Gavin Newsom signed an emergency proclamation designed to free up energy capacity and reduce the need for temporary energy service disruptions. Click here to read the full Proclamation.
Since this heatwave began, the California Independent System Operator (CAISO) has issued a statewide Flex Alert calling for voluntary electricity conservation, beginning Sunday, and extending through Wednesday. The Flex Alerts are in effect from 3:00 to 10:00 p.m. each day. Click here to read the full Flex Alert.

CAISO highlighted three simple actions individuals and businesses can take to reduce energy consumption:

  • Set your thermostat to 78° or higher between 3 and 10 P.M.
  • Refrain from major appliance use between 3 and 10 P.M.
  • Turn off unnecessary lights and appliances


Additional steps and guidance for individuals & businesses:

Adjust Your Thermostat 

  • During peak hours or when you’re not home, remember to set your thermostat at 78° or higher. Setting your air conditioner 5° higher can save up to 20 percent on cooling costs.
  • Pre-cool your home by running air conditioning at 72 degrees in the early part of the day (when it is more efficient) then turn your system to 78 or higher during the hottest part of the day when demand is the highest.
  • Use smart or programmable features to help maintain energy savings when you’re not home.
  • Close Windows and Doors
  • Keep windows and doors closed to prevent the loss of cooled or heated air.
  • On summer nights, open windows to let cooler air in when safe. In the morning before the day starts to heat up, close windows and blinds to keep warm air out.
  • Tilt blinds up and close drapes and shades on windows that receive direct sunlight.

Smart Energy Use

  • Turn off unnecessary lighting and use task or desktop lamps with LEDs instead of overhead lights.
  • Enable “power management” on all computers and turn off when not in use.
  • Unplug phone charges, power strips (those without a switch) and other equipment when not in use. Taken together, these small items can use as much power as your refrigerator.

Access and Functional Needs

  • Check in on neighbors, friends and family who may be at risk.
  • Charge medical devices in off hours and have back up plan for if the power goes out.
  • In addition to traditional community support channels, individuals with access and functional needs should reach out to local government for assistance.
  • Contact local utilities companies if you are dependent on power for assistive devices.

Major Appliance Use

  • Postpone using major appliances like the oven, dishwasher, clothes washer, and dryer until cooler times of the day to avoid heating up your home.
  • Run your dishwasher and clothes washer only when full. Wait until after 9 p.m. to use these and other major appliances.
  • When possible, wash clothes in cold water. About 90 percent of the energy used in a clothes washer goes to water heating.

Clean or Replace Your Filters

  • A dirty filter forces your air conditioner and furnace to work harder, wasting money, using more energy or natural gas.

Adjust Your Water Heater

  • Turn your water heater down to 120° or the “normal” setting. Water heating accounts for about 13 percent of home energy costs.

Conservation Programs

  • Consider participating in your utility’s demand response program. These voluntary programs are short, temporary measures to reduce energy consumption when power supplies are critically low and a Flex Alert has been issued. Contact your local electric utility to learn about your utility’s program and incentives they may offer to participate.



Today the California Independent System Operator (CAISO) has declared a WARNING due to low power reserves and high demand for electricity on the California electric grid. At this time, CAISO rotating outages have not been declared but could be later. Rotating outages may begin if the CAISO declares a stage 3 emergency, most likely during peak hours from 5:00 pm to 8:00 pm. Rotating outages typically last one hour.
If rotating outages are needed, you can see if your account will be impacted by checking www.sce.com/rotatingoutage. Rotating outages typically last one hour or shorter, and are critical to preventing longer more widespread outages during system emergencies.
CAISO encourages customers to reduce energy to help avoid CAISO rotating outages. To learn more about CAISO’s system alerts, warnings and emergencies, please visit www.CAISO.com.
Together, our conservation reduces stress on the statewide power grid and helps minimize the need for CAISO rotating power outages.

In an effort to respond to Governor Newsom’s Emergency Order to decrease energy usage during this historic heat wave and energy shortage, all Rancho Mirage City facilities, including City Hall and the Rancho Mirage Library, will be closed effective today, August 17 at 1:30 p.m. through end of day Wednesday, August 19, 2020.