The Catawba nuclear power plant in South Carolina lost all offsite power to its two reactors last night. The plant declared a Notice of Unusual Event (NOUE) as required by its lcense whenever the facility loses offsite power for more than fifteen minutes.
Catawba lost power to both its reactors. Unit 1 tripped automatically from 100 per cent power, while Unit 2 was shut down prior to the incident following a fire Monday in the Plant Vital Battery Room. (Duke Energy’s press release on the event say: “Unit 2 was already shutdown due to a scheduled refueling outage.” No mention of that little fire Monday.)
Catawba restored power to the reactors and ended the NOUE just before 2 am today The cause of the power loss is still under investigation.
You can read the full NRC Event Report at: http://www.nrc.gov/reading-rm/doc-collections/event-status/event/en.html
Or, if your tastes run more to fantasy, you can read the Duke Energy release at: http://www.duke-energy.com/news/releases/2012040501.asp