[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.

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.