University of Washington Libraries Digital Collections – Seattle Power and Water Supply Collection Historical photographs and pamphlets documenting the construction of hydroelectric power and water supply facilities built in Washington State from the late 1890s to the 1950s including the Snoqualmie Falls Power Plant, the Electron Plant, the Skagit River Hydroelectric Project, and the Cedar River water supply system.
Hydropower Reform Coalition A U.S.-based coalition of more than 130 national, state, and local conservation and recreation groups that seek to protect and restore rivers affected by hydropower
↑ Generating capacity is not the only factor determining the amount of electricity generated, as this also depends on consistent utilization of the plant's capacity. Factors enhancing this are the free capacity of the reservoir and the consistency of water supply during and across years.
↑ first unit installed in 1984, 18th in 1991; in 2003 2 additional units were installed
↑ first unit installed in 1942, 18th in 1950, 21st in 1991; 6 units in third powerplant were installed between 1975 and 1980, 2 units of pumped-storage plant were installed in 1973, 4 more units in 1983 and 1984
↑ 10 units were installed between 1985 and 1989, after 2009 failure new units were installed between 2010 and 2014
↑ Combined with adjacent La Grande-2-A the LG-2 complex has 7,722 MW of installed capacity
