To batteries and beyond: In a high-renewables world, pumped hydro storage could be 'the heavy artillery'

Utility Dive: Around three or four years ago, Jim Day, CEO of Daybreak Power, came across a Bureau of Reclamation (BOR) study that listed dozens of locations around the country that could be viable for pumped hydro storage projects.

Day picked two — one close to the Hoover Dam in Arizona, and the other located in Navajo Nation territory, near Lake Powell, on the Utah-Arizona border — as potential candidates. In 2018, his company filed a preliminary permit application for the 1,540 MW Next Generation Pumped Storage project at the first location, and the following year, a second application for the 2,210 MW Navajo Energy Storage Station at the latter.

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