Hydro Power Plants in Washington
Washington has 68 hydro power plants in the Bywatts database, totaling 21.1 GW of nameplate capacity. The largest is GRAND COULEE (6,809 MW), operated by U S BUREAU OF RECLAMATION.
68Plants
21.1 GWCombined capacity
All 68 hydro plants in Washington
| Plant | Capacity (MW) | Operator | Commissioned |
|---|---|---|---|
| GRAND COULEE | 6,809 | U S BUREAU OF RECLAMATION | 1941 |
| CHIEF JOSEPH | 2,456 | USACE NORTHWESTERN DIVISION | 1955 |
| ROCKY REACH | 1,300 | PUD NO 1 OF CHELAN COUNTY | 1961 |
| BOUNDARY | 1,040 | CITY OF SEATTLE - (WA) | 1967 |
| WANAPUM | 989 | PUD NO 2 OF GRANT COUNTY | 2011 |
| PRIEST RAPIDS | 956 | PUD NO 2 OF GRANT COUNTY | 1959 |
| LITTLE GOOSE | 810 | USACE NORTHWESTERN DIVISION | 1970 |
| LOWER GRANITE | 810 | USACE NORTHWESTERN DIVISION | 1975 |
| LOWER MONUMENTAL | 810 | USACE NORTHWESTERN DIVISION | 1969 |
| WELLS | 774 | PUD NO 1 OF DOUGLAS COUNTY | 1967 |
| ROCK ISLAND | 629 | PUD NO 1 OF CHELAN COUNTY | 1931 |
| ICE HARBOR | 603 | USACE NORTHWESTERN DIVISION | 1962 |
| ROSS | 450 | CITY OF SEATTLE - (WA) | 1952 |
| MOSSYROCK | 300 | CITY OF TACOMA - (WA) | 1968 |
| SWIFT 1 | 240 | PACIFICORP | 1958 |
| GORGE | 207 | CITY OF SEATTLE - (WA) | 1924 |
| DIABLO | 182 | CITY OF SEATTLE - (WA) | 1936 |
| MAYFIELD | 162 | CITY OF TACOMA - (WA) | 1963 |
| MERWIN | 136 | PACIFICORP | 1931 |
| YALE | 134 | PACIFICORP | 1953 |
| H M JACKSON | 112 | SNOHOMISH COUNTY PUD NO 1 | 1984 |
| UPPER BAKER | 105 | PUGET SOUND ENERGY INC | 1959 |
| SUMMER FALLS POWER PLANT | 92 | GRAND COULEE PROJECT HYDROELECTRIC AUTH | 1985 |
| LOWER BAKER | 85 | PUGET SOUND ENERGY INC | 1960 |
| CUSHMAN 2 | 81 | CITY OF TACOMA - (WA) | 1930 |
| BOX CANYON | 75 | PUD NO 1 OF PEND OREILLE COUNTY | 1955 |
| COWLITZ FALLS | 70 | PUD NO 1 OF LEWIS COUNTY | 1994 |
| LONG LAKE | 70 | AVISTA CORP | 1915 |
| LAGRANDE | 64 | CITY OF TACOMA - (WA) | 1912 |
| CHELAN | 59 | PUD NO 1 OF CHELAN COUNTY | 1927 |
| ALDER | 50 | CITY OF TACOMA - (WA) | 1945 |
| CUSHMAN 1 | 43 | CITY OF TACOMA - (WA) | 1926 |
| SNOQUALMIE 2 | 34 | PUGET SOUND ENERGY INC | 1957 |
| LITTLE FALLS | 32 | AVISTA CORP | 1910 |
| CEDAR FALLS | 30 | CITY OF SEATTLE - (WA) | 1921 |
| PACKWOOD | 28 | ENERGY NORTHWEST | 1964 |
| MAIN CANAL HEADWORKS | 27 | GRAND COULEE PROJECT HYDROELECTRIC AUTH | 1987 |
| NINE MILE | 26 | AVISTA CORP | 1908 |
| TWIN FALLS HYDRO | 24 | TWIN FALLS HYDRO ASSOCIATES LP | 1989 |
| ELECTRON | 23 | PUGET SOUND ENERGY INC | 1904 |
| UPRIVER DAM HYDRO PLANT | 18 | SPOKANE CITY OF | 1936 |
| SOUTH FORK TOLT | 17 | CITY OF SEATTLE - (WA) | 1995 |
| MONROE STREET | 15 | AVISTA CORP | 1992 |
| ROZA | 13 | U S BUREAU OF RECLAMATION | 1958 |
| WYNOOCHEE | 13 | CITY OF TACOMA - (WA) | 1994 |
| CHANDLER | 12 | U S BUREAU OF RECLAMATION | 1956 |
| KOMA KULSHAN ASSOCIATES | 12 | COVANTA HYDRO OPS WEST INC | 1990 |
| YELM | 12 | CITY OF CENTRALIA - (WA) | 1930 |
| SNOQUALMIE | 12 | PUGET SOUND ENERGY INC | 1898 |
| MCNARY DAM FISH ATTRACTION PROJECT | 10 | NORTHERN WASCO COUNTY PUD | 1997 |
| UPPER FALLS | 10 | AVISTA CORP | 1922 |
| QUINCY CHUTE | 9 | PUD NO 2 OF GRANT COUNTY | 1985 |
| PEC HEADWORKS | 7 | PUD NO 2 OF GRANT COUNTY | 1990 |
| RUSSELL D SMITH | 6 | GRAND COULEE PROJECT HYDROELECTRIC AUTH | 1982 |
| WEEKS FALLS | 4 | CHI WEST INC | 1990 |
| BLACK CREEK | 4 | BLACK CREEK HYDRO INC | 1994 |
| NEWHALEM | 2 | CITY OF SEATTLE - (WA) | 1970 |
| POTHOLES EAST CANAL 66.0 | 2 | GRAND COULEE PROJECT HYDROELECTRIC AUTH | 1985 |
| ELTOPIA BRANCH CANAL 4.6 | 2 | GRAND COULEE PROJECT HYDROELECTRIC AUTH | 1983 |
| TWIN RESERVOIRS | 2 | WALLA WALLA CITY OF | 1988 |
| COWICHE | 2 | YAKIMA-TIETON IRRIGATION DIST | 1987 |
| ORCHARD AVENUE 1 | 2 | YAKIMA-TIETON IRRIGATION DIST | 1987 |
| ROCKY BROOK HYDROELECTRIC | 2 | ROCKY BROOK ELECTRIC INC | 1985 |
| SHEEP CREEK HYDRO | 2 | SHEEP CREEK HYDRO INC | 1986 |
| MEYERS FALLS | 1 | HYDRO TECHNOLOGY SYSTEMS INC | 1915 |
| CONDIT | · | PACIFICORP | · |
| ELWHA HYDROELECTRIC PROJECT | · | U S BUREAU OF RECLAMATION | · |
| GLINES HYDROELECTRIC PROJECT | · | U S BUREAU OF RECLAMATION | · |