Principal Solar Institute

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Gravity Power

Utility Scale Energy Storage

Gravity Power develops utility-scale energy storage power plants superior to combustion turbine plants and other storage for peaking and ancillary services power. The “Gravity Power Module” (GPM) hydraulically lifts a massive piston inside a deep vertical shaft to store energy, and releases the piston on demand to force water through a hydro turbine. Early units will supply 25 MW for 20 minutes and later units will supply 40-150 MW for 4 hours or more. The Company plans to sell turnkey plants, operate and maintain and joint venture or license technology in strategic markets.


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