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Richland Nuclear Plant Refueled, Repaired, Restarted by Staff Tri-City Business News, July 2021

Energy Northwest's Columbia Generating Station reconnected to the Northwest power grid at 12:25 a.m. June 19 following its 25th refueling outage.

During the weekslong outage, more than 1,400 skilled temporary workers performed preventative maintenance and major system upgrades to the nuclear plant. The plant shuts down temporarily every two years to add fresh nuclear fuel to the reactor core.

Operators replaced 260 of the plant's 764 nuclear fuel assemblies. Spent fuel was placed in a fuel pool, where it remains for a minimum of five years to remove residual heat before it is transferred to the on-site dry cask storage facility.

The outage also allowed work crews to install a new turbine rotor, replace reactor water cleanup heat exchangers, refurbish a condensate pump and motor and conduct other tasks.

The plant has a nameplate generating capacity of 1,207 megawatts.

Related Pages:
Nuclear Plant Near Richland is Back on the Grid Just in Time for Peak Power Demand by Annette Cary, Tri-City Herald, 6/21/19
Columbia Generating Station Sets Monthly Generation Record by Kevin Randolph, Daily Energy Insider, 1/9/18
Richland Nuclear Plant Sets Generation Record by Annette Cary, Tri-City Herald, 1/4/17
Columbia Generating Station Sets Monthly Generation Record by Annette Cary, Tri-City Herald, 8/11/15