I mean idk if it exists. Energy storage just means potential energy creation/efficient extraction. Could put a huge heavy fucking weight and lift it up a tower. Then letting it spin motors (maybe some gearing so weight moves slow while turbine spins fast as it falls. Problem with everything is just optimizing efficiency.
In theory that sounds like a pretty good option, but in the 30 seconds or so it took to type this reply obviously I couldn't research it lol
I mean idk if it exists. Energy storage just means potential energy creation/efficient extraction. Could put a huge heavy fucking weight and lift it up a tower. Then letting it spin motors (maybe some gearing so weight moves slow while turbine spins fast as it falls. Problem with everything is just optimizing efficiency.