Indiana Michigan Power's Cook Nuclear Plant Unit 1 completes fall 2026 refueling outage
AEP•Indiana Michigan Power said Cook Nuclear Plant Unit 1 completed its fall 2026 refueling outage, which began September 19. Work included pump replacements, inspections and maintenance, electrical support system replacements, and an upgraded control system.
1. Outage work completed
Cook Nuclear Plant Unit 1 completed its fall 2026 refueling outage, which began September 19. The work included replacing a circulating water pump, inspecting and maintaining the main turbine and generator, replacing electrical support systems, and installing an upgraded servo-position control system for the main turbine and main feed pump turbines.




