Unit 1 of Indiana Michigan Power’s Cook nuclear power plant has completed its refueling outage and is now back online. The outage began April 2 and involved more than 1,200 contracted workers being brought into the area for maintenance. I&M says addition to refueling the reactor and performing regular maintenance and testing work, the outage included an inspection of the high-pressure turbine, inspection and maintenance of the unit’s steam generators, an upgrade to a safety-related control system, seal replacement on all three of the unit’s main condensers, and a digital control upgrade to the moisture separator reheater system. Nearly 11,000 maintenance, inspection and equipment modification job activities totaling 240,000 work-hours were completed during two daily 12-hour work shifts.
