Calvert Cliffs reactor back on line after refueling

March 24, 2010

A reactor at the Calvert Cliffs nuclear power plant has resumed operations after a planned refueling outage, owner Constellation Energy Nuclear Group announced Tuesday. In February, one reactor shut down after an electrical malfunction caused by melting snow on a leaky roof, triggering the other to shut down as well, a Constellation spokesman said at the time. One reactor returned to service March 1 after confirming there were no safety issues, but the second reactor was scheduled to be shut down for refueling. Inspectors from the U.S. Nuclear Regulatory Commission went to Calvert Cliffs in February to investigate the shutdown.

- Liz F. Kay

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