One of Xcel Energy’s two Prairie Island nuclear generators remains shut down after the company reported an “unusual event” Saturday to federal nuclear regulators.
Multiple fire alarms — which were not verified within 15 minutes — went off in a reactor containment building, triggering the unusual event declaration.
There was no fire, and no threat to the public or plant workers, Xcel said in a notification to the U.S. Nuclear Regulatory Commission (NRC).
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Read More: Xcel shuts down nuclear generator at Prairie Island after ‘unusual event’