A very large-scale long duration energy storage (LDES) idea from MIT envisages a 1 kilometer-long, 60 meter-wide lidded central storage container of rocks sunk 20 meters down into the ground – about the size of 10 football fields if they were laid end to end. The idea is that it could store energy from up …
100-Gigawatt-Hour Crushed-Rock Heat Storage for Concentrated Solar Power and Nuclear
