A control rod at the 1,735 MWe Calvert Cliffs nuclear power plant in Maryland unexpectedly inserted into the Unit 1 core, causing a drop in power generation August 12. The unit has been shut down while workers look into the cause.
Unit 2 continues to operate at full power. There is no word on when Unit 1 will return to service. There is no risk to the public due to the plant’s redundant safety systems, according to plant owner Constellation Energy Nuclear Group.
Subscribe to Nuclear Power International magazine