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What is a Rotating Outage?
A rotating outage is called as a last resort when there is a regional power emergency. For an hour at a time, we shut down power by geographical groups on our system to help ease the demand on our electrical grid. Rotating outages help your community avoid larger and longer lasting outages.
When we implement a rotating outage, you can stay up to date by accessing this page. You can see the groups that are currently out of power, and the groups that will be part of the next outage. The best way to find your group number is to look at your bill, or log in to My Account. Once you know your group number, you can download a PDF of your map. This will give you at-a-glance insights into your outage range.
Essential Use Customers
Critical public services like fire stations and hospitals are considered essential use customers. Essential use customers are exempt from rotating outages.
Do You Qualify?
To qualify, you must be a business customer that provides a critical public service. To get an evaluation and apply, call us at 1-800-990-7788.
- Government agencies essential to the national defense
- Hospitals and licensed skilled nursing facilities
- Communication utilities that relate to public health, welfare, and security
- Navigation, traffic control, and commercial air and sea landing and departure facilities
- Electric utility facilities and fuel transportation services critical to electric power system operation
- Radio and TV stations that broadcast emergency messages, instructions, and other public information.
- Areas served by networks, at utilities' discretion
- Rail rapid transit systems as necessary to protect public safety
- Transmission customers who supply more power to the grid than consumed during rotating outages
- Optional Binding Mandatory Curtailment Program customers
- Petroleum refineries, vital ancillary facilities, and customers in the critical fuels chain of production
- Water and sewage utilities may request partial or complete exemption in times of emergency - these utilities support public services, such as firefighting
Some essential facilities with a backup generator may not be exempt from rotating outages. This allows greater support to essential facilities that do not have a source of backup power. Hospitals and licensed nursing facilities are always exempt from rotating outages.
Please Note: We review and update our Essential Use customer list annually. If the status of your facility changes, you will receive a 15-day advance notice from us.
What happens if my power is out and I'm an Essential Use Customer?
On rare occasions, an Essential Use customer may experience a rotating outage. In these unusual cases, business customers please call 1-800-990-7788. We will take all possible measures to quickly restore power.
Subscribe to Rotating Outage Alerts
To receive alerts of upcoming rotating outages, there are service providers available.
These providers are not affiliated with us, but can alert you before the power goes out. To subscribe see the California Office of Emergency Services
How can I stay cool during a rotating outage?
Cooling stations are facilities where you can visit to stay cool during a rotating outage. These facilities are made available by community businesses and organizations. They are open to the public, but have limited space.
If you have a medical condition affected by extreme temperatures, you may be eligible to apply for advance rotating outage alerts
Knowing about rotating outages early can help you minimize discomfort and stress. Even if you don’t qualify, you can find some helpful outage tips to avoid heat wave health risks.