Reactor Shut Down for Inspection at Calvert Cliffs - NBC4 Washington

Reactor Shut Down for Inspection at Calvert Cliffs



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    Constellation Energy Nuclear Group said it has shut down one of two reactors at its Calvert Cliffs plant in southern Maryland after a malfunction caused a drop in power generation.

    A spokesman said Monday that a control rod unexpectedly dropped into the reactor core. Control rods are used to regulate the pace of the nuclear reaction.

    A Nuclear Regulatory Commission spokesman said such events are infrequent but do not pose a risk to the public. He said shutting down the unit for inspections and maintenance was a prudent decision.

    Plant spokesman Kory Raftery said he can't predict when Unit 1 will return to operation. He said Unit 2 is running at full power.

    The plant is located along the Chesapeake Bay near Lusby, about 70 miles south of Baltimore.