energy storage technology that has gained new relevance in the age of wind and solar power.
Quidnet has not been asleep at the wheel since then. The new grant of $10 million comes through the Energy Department’s cutting edge ARPA-E funding office, which focuses on supporting new“Quidnet Energy, Inc. will scale its Geomechanical Pumped Storage to a commercial system at CPS Energy, the largest U.S. municipal utility,” ARPA-E explained.
If all goes according to plan, San Antonio’s CPS Energy will serve as a high profile showcase for replication. The ARPA-E funding will enable Quidnet to scale up its pilot-stage system to a 1-megawatt, 10 megawatt-hour commercial system that can deliver electricity for 10 hours or more.
Water is relatively incompressible, and you're not getting any potential energy if it's below ground level. How exactly is this working?