Advancing Scalable
Energy Storage Solutions

We’re bringing the next generation of reliable
energy storage to the U.S.

We specialize in developing closed-loop pumped storage hydropower projects, a low-impact technology that minimizes water use and environmental impact while adding much-needed storage capacity to the grid. Pumped storage shifts energy from periods of low demand to high demand and retains energy for when renewable sources like wind and solar aren’t generating power.

Our projects span every continent, showcasing our expertise in navigating complex technical, regulatory, and financial challenges to successfully deliver projects of all scales.

Closed-Loop Projects

Lewis Ridge Pumped Storage

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Gilboa Pumped Storage

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Swan Lake Pumped Storage

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Goldendale Pumped Storage

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Western Navajo 1 Pumped Storage

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Run-of-River Projects

Pennsylvania & West Virginia

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Run-of-River Projects

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Running Data Centers With Hydropower

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Dig Deeper

All non-federal pumped storage hydropower projects built in the U.S. must obtain a license from the Federal Energy Regulatory Commission. Learn more about our projects by reviewing our license application materials, which include detailed feasibility studies, economic analysis and more.

View Project Documents