Columbia Nuclear Generating Station, Washington

The sole survivor of the Washington Public Power Supply System (WPPSS) program's ambitious construction plan of the 1970's, to build five nuclear units at two locations, the Columbia Generating Station (originally called WNP-2) is the only one to have been completed, and the only commercial nuclear power plant in Washington State. The 1,170 megawatt reactor built by General Electric, went online at Hanford in 1984 - seven years behind schedule, and $2 billion over budget. The plant is owned and operated by Energy Northwest. The four other reactors in the proposed system were partially built, including units 1 and 4 nearby on the Hanford Reservation, and 3 and 5 at Satsop, in western Washington.