Power Outage Preparedness

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Be prepared for a power outage. Extended power outages may impact the whole community.


Prepare Now

  • Take an inventory now of the items you need that rely on electricity.
  • Talk to your medical provider about a power outage plan for medical devices powered by electricity and refrigerated medicines. Find out how long medication can be stored at higher temperatures and get specific guidance for any medications that are critical for life.
  • Plan for batteries and other alternatives to meet your needs when the power goes out.
  • Sign up for local alerts and warning systems. Monitor weather reports.
  • Install carbon monoxide detectors with battery backup in central locations on every level of your home.
  • Determine whether your home phone will work in a power outage and how long battery backup will last.
  • Review the supplies that are available in case of no power. Have flashlights with extra batteries for every household member. Have enough nonperishable food and water.
  • Use a thermometer in the refrigerator and freezer so that you can know the temperature when the power is restored.
  • Keep mobile phones and other electric equipment charged and gas tanks full.

Survive During

  • Keep freezers and refrigerators closed. The refrigerator will keep food cold for about four hours. A full freezer will keep the temperature for about 48 hours. Use coolers with ice if necessary. Monitor temperatures with a thermometer.
  • Use food supplies that do not require refrigeration.
  • Avoid carbon monoxide poisoning. Generators, camp stoves, or charcoal grills should always be used outdoors and at least 20 feet away from windows. Never use a gas stovetop or oven to heat your home.
  • Check on your neighbors. Older adults and young children are especially vulnerable to extreme temperatures.
  • Go to a community location with power if heat or cold is extreme.
  • Turn off or disconnect appliances, equipment, or electronics. Power may return with momentary “surges” or “spikes” that can cause damage.

Be Safe After

  • When in doubt, throw it out! Throw away any food that has been exposed to temperatures 40 degrees or higher for two hours or more, or that has an unusual odor, color, or texture.
  • If the power is out for more than a day, discard any medication that should be refrigerated, unless the drug’s label says otherwise. If a life depends on the refrigerated drugs, consult a doctor or pharmacist and use medicine only until a new supply is available.

Click here to view a Power Outage Safety Flyer


Southern California Edison Public Safety Power Shutoff Program

Southern California Edison (SCE) has recently implemented a Public Safety Power Shutoff Program. In alignment with its operational safety practices, SCE may proactively shut off power in high fire risk areas when extreme weather conditions present a clear an imminent danger to public safety. SCE has identified twenty-five high-risk area circuits that may be affected throughout our City.

On Wednesday, November 7, 2018 Jeremy Goldman with SCE presented an overview of the program to Corona residents. Watch below:


Click here to view PDF of PowerPoint Presentation

Click here to view High-Risk Circuit Areas throughout the City of Corona

Click here to view an At-A-Glance Map of the High-Risk Circuit Areas

Click here to visit SCE's Grid Resiliency and Wildfire Safety Webpage

Click here to view PSPS Fact Sheet including Tips on Staying Safe and Taking Action


Edison Medical Baseline Program:

The California Public Utilities Commission (CPUC) has directed the utilities to contact people with medical conditions when there are outages, regardless of cause. Therefore, it is vital that people with medical conditions alert the utility to their condition and make use of the medical baseline program, as appropriate. Click here to register through SCE's medical baseline program. 


When Edison expects to implement the Public Safety Power Shutoff Program, SCE will contact affected customers. Make sure your contact information is current with Edison. To learn more about the Public Safety Power Shutoff Program, please visit the Southern California Edison webpage. 


Sign up for Corona's Emergency Notification System

If provided early warning, the City of Corona will also attempt to notify residents affected by the Edison's Public Safety Power Shutoff Program. The City has a local notification system that will send telephone notifications to resident and businesses. Only land-lines are in the system. Register your cell phone number and select if you would like to receive an additional notification by email and/or text. Visit to register!


Corona's Power Outage Map

One of the key components to an outage of any kind is communication with the customer and being able to provide them the information that they need in the time frame that it is available. Corona's Power Outage Map allows customers to view service response in real time. Click here to access Corona' Power Outage Map or visit

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