extended power update

The only commercial nuclear power plant in the U.S. Pacific Northwest is set for a $700-million upgrade that would add nearly 200 MW of generation capacity. The Columbia Generating Station in Richland, Washington, with a current capacity of 1,207 MW, will undergo an extended power uprate that will be done during the plant’s next three biennial spring refueling outages in 2027, 2029, and 2031.