Underground LDES: turning mines and caverns into energy storage
As global energy grids increasingly integrate intermittent renewable sources, the demand for long duration energy storage (LDES) is accelerating a shift towards innovative subterranean solutions. This article delves into how repurposed mine shafts and salt caverns are becoming critical infrastructure for LDES, specifically through Compressed Air Energy Storage (CAES) and Underground Gravity Energy Storage (UGES). Experts from Storelectric and Green Gravity discuss the technical and economic merits of these approaches, highlighting their potential to overcome limitations of conventional battery technologies and revitalize former mining assets.
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