Electron is an unincorporated community in Pierce County in the state of Washington, US.

[1] Electron sits along the Puyallup River just northeast of Lake Kapowsin and is the site of the Electron Hydroelectric Project, a power plant operated by Puget Power.

Above the plant, 10.1 miles upriver, is the Electron Diversionary Dam, which runs water to the power plant via a wooden flume.

[2] The dam and power plant project was constructed in 1903-04 and began operation on April 12, 1904.

A mudslide destroyed the original powerhouse in 1936; rebuilding was partially completed in 1937 and fully rehabilitated in 1941.