I think I understand how the battery where they drop a big weight down a mountain works; how do these work? Or how does it compare in effectiveness as I assume it’s probably the same principle?
It has a turbine inside it. It is not a cement ball, it is very misleading title. It’s a cement shaped hollow orb with a hydro power generator inside it.
I think I understand how the battery where they drop a big weight down a mountain works; how do these work? Or how does it compare in effectiveness as I assume it’s probably the same principle?
It has a turbine inside it. It is not a cement ball, it is very misleading title. It’s a cement shaped hollow orb with a hydro power generator inside it.
Well that sounds like cheating.