“Giant bricks are not what most people think of when they hear the words ‘energy storage’, but they are a key element of a gravity-based system that could help the world manage an increasing dependence on renewable electricity generation.”

[COMMENTARY] I believe that the energy storage problem for wind and solar is in the process of being solved. Here are four examples leading in that direction.
4 ways to store renewable energy that don’t involve batteries, by Ian Shine, January 26, 2023, World Economic Forum, Switzerland.