Visit to a Project at John Day Pool

Staff at the office, along with folks from Ecology, visited the Klickitat County PUD1 site for a closed-loop pump storage hydropower project at the John Day pool. This is being funded in part by the Clean Energy Fund through appropriations by the 2018 legislature.

A closed loop system consists of two reservoirs at different elevations, and apart from a free flowing water source, such as a river. They have fewer environmental impacts. The system generates power as water moves down through a turbine and draws power as it pumps water to the upper reservoir.

Pumped-storage hydro-power currently accounts for 95 percent of all utility-scale energy storage in the United States.

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