The yellow cranes and other equipment are part of Wells Dam
It has produced electricity since August 22, 1967. Its operating license from the US Federal Energy Regulatory Commission is next up for renewal in 2052.[2] The Wells project has ten generating units rated at a combined 840 megawatts.[3] In addition to the Douglas County and Okanogan County public utility districts, the project provides electricity to Puget Sound Energy, Portland General Electric, PacifiCorp, Avista Corporation,[4] and the Confederated Tribes of the Colville Reservation.[5]
Its reservoir is named Lake Pateros. Just below and adjacent is Carpenter Island boat launch and fish hatchery river access. Lake Pateros is not deep but a high volume of water moves through it. Thus, low-head, high-volume Kaplan turbine runners drive generation.[6]