BRIDGMAN, Mich., April 28, 2016 – Indiana Michigan Power’s Cook Nuclear Plant Unit 1 completed its refueling outage and is back in service and connected to the transmission grid. The outage lasted 36 days and six hours. In addition to refueling the reactor and performing regular maintenance and testing work, the outage also included several large component replacements that were part of the plant’s Life Cycle Management (LCM) project. About 1,500 contracted workers supplemented the regular 1,200-person plant staff during the outage.
“We appreciate all the support of the local and regional craft workers on these LCM upgrades that support the extended operation of the Cook Plant,” said Joel Gebbie, AEP Chief Nuclear Officer and Senior Vice President. “The major component replacements are just part of our reliability improvements and increased safety margins that will benefit the plant for decades to come.”
One of the LCM projects this outage was replacement of two 60-ton feedwater heaters that pre-heat water before it enters the steam generators. A 40-ton safety-related heat exchanger also was replaced. Other modifications enhanced the reliability of plant emergency electrical systems and decreased the wear on steam generator tubes. More than 13,500 maintenance, inspection and equipment modification job activities totaling almost 300,000 work-hours were completed during the period.
In 2005, Cook received license renewals from the Nuclear Regulatory Commission that allows the units to run to 2034 and 2037 respectively. That is an additional 20 years beyond their original licenses.
At full capacity, the 1,030-net MW Unit 1 and 1,077-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).