So why am I so blasé? Probably because the sand battery being discussed is basically just a form of seasonal thermal energy storage (STES)—a concept that has been around for decades.

The energy is released when sand is lowered when needed. “Our proprietary gravity-based storage design [using sand] allows for efficient energy storage and discharge,” Dishant Mishra ...

“The construction of the storage went well, especially considering that the solution is completely new. We managed to get everything in order despite some challenges and a short delay. Now the sand is ...