Davis-Besse Nuclear Power Station returns to service after refueling outage

Akron, Ohio, June 13, 2012 — FirstEnergy Nuclear Operating Co. (FENOC), a unit of FirstEnergy Corp., announced its Davis-Besse Nuclear Power Station in Oak Harbor, Ohio, returned to service June 13 following a May 6 shutdown for refueling and maintenance.

The 908 MW Davis-Besse unit began producing electricity at 3:37 a.m. and is currently operating at about 30 percent power. The unit is expected to reach full power this week.

During the outage, 68 of Davis-Besse's 177 fuel assemblies were exchanged and numerous safety inspections, including inspections of the station's steam generators, were successfully conducted. Preventative maintenance and improvement projects also were completed that are designed to promote continued safe and reliable operations.

In addition, inspections of the station's Shield Building revealed that the tight cracks in the building's wall discovered during the fall 2011 reactor head replacement outage do not appear to have grown, nor were new cracks identified. The Shield Building continues to perform its function safely and reliably.

FirstEnergy is an energy company headquartered in Akron, Ohio. Its FENOC subsidiary also operates Beaver Valley Power Station in Shippingport, Pa., and Perry Nuclear Power Plant in Perry, Ohio.

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