Refueling and maintenance of the Callaway Energy nuclear power plant was finished Wednesday, Ameren Missouri officials said.
The plant also is back in operation following this complex, 22nd-planned refueling and maintenance outage. During the outage, one-third of Callaway's 193 fuel assemblies were replaced. The largest overall job was a complete overhaul of the main generator stator assembly, officials said.
"We finished a list of more than 10,000 tasks " Barry Cox, senior director of nuclear operations, said.
Ameren Missouri added roughly 1,000 additional workers from across the state to finish the work during the outage window. They supplemented Callaway's regular workforce of about 800 employees.
"While the outage was longer than normal refueling outages, our co-workers take pride in ensuring work is done safely and correctly," Cox added. "The most important accomplishment is that the work was completed safely."
The plant is licensed to operate through 2044. Cox said prior to the planned outage, Callaway had a continuous run of 514 days, one of the longest in the center's 33-year history.
The Callaway Energy Center typically generates 20 percent of the electricity for Ameren Missouri's 1.2 million customers. Callaway's next refueling outage is scheduled for spring 2019.