Columbia Generating Station Sets
Energy Northwest's nuclear power plant set a record early Saturday for its longest continuous operational run.
When the reactor at Columbia Generating Station was shut down for a scheduled refueling and maintenance outage, the station had been operating for 683 days straight.
It was the first time the plant achieved a "breaker to breaker" run in its 30-year history, according to Energy Northwest officials. During that time, Columbia produced nearly 18 million megawatt-hours of electricity and operated at a more than 98 percent capacity factor, a news release said.
The previous record of 505 days, set in April 2011, was broken in November.
Columbia Generating Station sells its power at-cost to the Bonneville Power Administration, and 92 Northwest utilities receive a percentage of its output.
Energy Northwest is spending a budgeted $106 million on this outage, with about $28.5 million of that capital costs. A portion of the fuel in the plant is replaced every two years, with this outage expected to last 42 days.
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