pumped hydro

Courtesy of Rye Development

Looking over the edge of a Columbia River Gorge slope, you can see the river more than 2,000 feet below. A former aluminum smelter sits to the left at the bottom of the cliff. Wind turbines spin nearby lining the cliff’s edge.

This site near Goldendale, in Klickitat County, could one day help solve a downside of current renewable energy technology: reliability. But it’s not without controversy.