Hydroelectric Plants in Washington

75 plants · 21.7 GW total capacity

Hydroelectric generation in Washington includes 75 plants with 21.7 GW total capacity.

Largest is Grand Coulee (6809 MW Hydro); oldest active is Snoqualmie (1898); newest is Calligan Creek Hydroelectric Project (2018); top owner is Columbia Basin Hydropower (6 plants).