Unit 1 of the Cook nuclear power plant in Bridgman has been taken offline for repairs. Indiana Michigan Power has released the following:
Indiana Michigan Power’s Cook Nuclear Plant Unit 1 was safely taken offline by operators at 3:40 a.m. Wednesday, July 28, in order to repair a valve on one of the unit’s circulating water pumps. Unit 2 remains safely at 100 percent power and there are no impacts to safety or customer electric service.
Unit 1 was reduced to 90 percent power at 6:46 a.m. on Wednesday, July 21, in order to investigate an issue with the circulating water pump, which provides cooling water to condense steam on the non-nuclear turbine side of the unit. Subsequently, it was determined that a repair to the pump’s discharge valve was necessary. In order to safely make the repair, the unit was removed from service, and will remain offline until the repair is completed.
For competitive reasons, Cook Plant does not provide return to service timeline information.
