lime!a giant flywheel for every town!
DuamerthraxPumped Hydro is a pretty safe storage method using preexisting technology if you have hills in the area.
Apparently you can do something similar with sand if you live in a desert.
Gravity Batteries? They’re much, much easier using water compared to solid masses.
You could store solar energy as heat in sand and use turbines(if you have water) or Sterling Engines(if you don’t) to spine a generator. Peltiers are a solid state method to convert heat to electricity, but they aren’t very efficient.
The Energy Vault is a Dumb Idea, Here's Why
The energetics version of Gadgetbahn, debunked within 4 minutes, or your money back!Thunderf00t's video:https://www.youtube.com/watch?v=NIhCuzxNvv0&ab_channe...