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In 2020, Washington had a total summer capacity of 30,669 MW through all of its power plants, and a net generation of 116,114 GWh. [2] The electrical energy generation mix in 2022 was 67.6% hydroelectric, 12.5% natural gas, 8.4% nuclear, 6.9% wind, 3.1% coal, and 1.1% biomass which includes most refuse-derived fuel .
Wanapum Dam is a run-of-the-river hydroelectric project located on the Columbia River downstream (south) from Vantage, Washington where Interstate 90 crosses the Columbia from Grant County into Kittitas County. It is owned by the Grant County Public Utility District. Its reservoir is named Lake Wanapum.
According to the DOE, approximately 52 percent of dams in the state are privately-owned, while 31 percent are owned by local governments. [1] Approximately 87 percent of dams in Washington are earth fill dams, with the second most-common type being concrete gravity dams (6%). Only 113 dams in the state are taller than 50 feet (15 m).
This category contains articles about hydroelectric power plants in the U.S. state of Washington. Pages in category "Hydroelectric power plants in Washington (state)" The following 53 pages are in this category, out of 53 total.
Mossyrock Dam is a concrete arch-gravity dam on the Cowlitz River near Mossyrock in Lewis County, Washington, United States. The reservoir created by the dam is called Riffe Lake . The primary purpose of the dam is hydroelectric production while flood control is a secondary function. [ 1 ]
The Snoqualmie Falls Hydroelectric Plant is located just north of Snoqualmie in King County, Washington state, US. It is situated about 22 mi (35 km) east of Seattle. Located just below the Snoqualmie Falls, the power plant consists of two power houses, Plant 1 and Plant 2. Plant 1 was completed in 1899 and is located underground.
Wells Dam is a hydroelectric embankment dam located on the Columbia River, downstream from the confluence of the Okanogan River, Methow River, and the Columbia River in Washington state. The dam, associated structures, and machinery make up the Wells Hydroelectric Project. It is owned and operated by Douglas County Public Utility District.
Upper Falls Power Plant is a hydroelectric power plant and dam complex on the Spokane River located in Downtown Spokane, Washington.The facility is located on the Upper Spokane Falls in Riverfront Park where the river splits into three branches around snxw meneɂ (formerly known as Canada Island) [3] and Havermale Island.