Storing Clean Energy with Air & Water: Hydrostor’s Game-Changing Tech
Curtis VanWalleghem, Co-Founder and CEO of Hydrostor, explains how his company uses compressed air energy storage in underground caverns to provide long-duration grid stability. He details the engineering of the system, including thermal management and the 'champagne effect,' and contrasts Hydrostor's economics and 100-year lifespan with lithium-ion batteries and pumped hydro. VanWalleghem discusses the company's pivot from marine balloons to mining caverns, its commercial projects in Australia and California, and the critical need for market redesign to value long-duration storage.