FirstEnergy Nuclear Operating Company (FENOC), a unit of FirstEnergy Corp., announced its Beaver Valley Power Station Unit 1 in Shippingport, Pa., shut down at 12:01 a.m. September 30 for scheduled refueling, maintenance and a turbine upgrade that is designed to improve efficiency and reliability.
While the unit is offline, 60 of the 157 fuel assemblies will be replaced and numerous safety inspections will be conducted. In addition, preventative maintenance to ensure continued safe and reliable nuclear power operations will be performed on major components including the plant’s three steam generators as well as various pumps, valves and the cooling tower.
A major project during this outage is replacement of Beaver Valley Unit 1’s two low-pressure steam turbine rotors, which are spinning components that drive the electrical generator. The new rotors feature an enhanced blade design that is expected to improve plant reliability, efficiency and life expectation. Each of the two new rotors weigh about 153 tons and measure about 15 1/2 feet in diameter and nearly 30 1/2 feet long.
More than 1,000 temporary contractors and FENOC and FirstEnergy employees will supplement the Beaver Valley workforce during the outage.
The 911-MW Beaver Valley Unit 1 operated for 507 consecutive days since the completion of its last refueling outage in May 2012.