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Nuclear Preparedness

Always prepared

We work hard to keep our plants – and our communities – safe.

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Notice of Siren Testing

Select outdoor warning sirens around each of our nuclear plants in June through the first of September. Sirens may be tested multiple times using three-minute tests. These tests are required to complete acoustic analysis to ensure sirens are operating optimally and will occur between 9 a.m. and 4 p.m. Although a siren might sound multiple times, this is part of the test, and no public action is needed.
If unsure, members of the public can tune to local TV or radio to confirm. Because these are tests, local broadcasting stations will not interrupt regular programming to broadcast Emergency Alert System (EAS) messages. If there were ever a real emergency at the plant requiring the sirens to be sounded, local radio and television stations would broadcast information and instructions to the public.
Testing is performed in cooperation with emergency officials in each county. For more information about nuclear emergency preparedness and outdoor warning sirens, residents can visit

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Try our new texting tool.

We're excited to announce a new tool to keep teammates, customers and neighbors well-informed. By signing up to receive nuclear information via text message, we’ll notify you of emergency preparedness information specific to your area, including siren test reminders. You’ll also receive messages about community activities hosted by the nuclear plant and any other important information to keep you in the know! This tool WILL NOT alert subscribers to emergencies.

Text <plant name> to 71729, using the name of any plant shown below that you would like to receive information for.

Message frequency depends on user. Message and data rates may apply. Terms & Privacy Policy:

Nuclear power plants

This webpage contains important emergency planning information for people who live within 10 miles of our nuclear power plants (also known as the emergency planning zones or EPZs). The information was developed by state and local officials in conjunction with Duke Energy and is updated annually.

We always expect our nuclear stations to operate safely and we work hard to keep our plants – and our communities – safe. But it's smart to be prepared.

For the most up-to-date information about what to do in the unlikely event of an emergency at one of our nuclear plants, select the plant closest to you.