Unit 2 at Diablo Canyon nuclear power plant returned to full power Monday after a monthlong refueling shutdown.
The outage began Oct. 5. In addition to refueling the reactor, workers performed a variety of maintenance jobs. More than 120,000 hours of work were performed and some 1,000 contract workers hired.
Typically, one reactor is refueled per year. However, both reactors were refueled this year. This happens once every five years.