At 8:26 a.m. Sunday morning, July 21, Indiana Michigan Power’s Cook Nuclear Plant Unit 2 was safely taken offline after operators noted a gradual decline in performance of both of the unit’s two non-essential service water (NESW) pumps. Non-essential service water is used to maintain cooling for the main turbine’s lube oil system.
In order to make the necessary pump repairs, the unit had to be taken offline, and Cook Plant operators made the conservative decision to execute the safe, controlled shutdown of Unit 2. Cook’s Unit 1 remains at full power.
The forced outage for Unit 2 is expected to be brief, with a return to service as soon as the repairs are complete.
At full capacity, the 1,084-net MW Unit 1 and 1,194-net MW Unit 2 combined produce enough electricity for more than one and one half million average homes.
Indiana Michigan Power is a wholly owned subsidiary of American Electric Power (NYSE:AEP).
