Quote:
Originally Posted by Fuzz
It will be interesting to see what ends up being the most efficient "battery" for grid storage. I can imagine pumped hydro has a lot of efficiency losses through the pumps, but every method is going to have some efficiency issues.
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The biggest issue with pumped hydro is geography. How many places have higher elevation areas to make lakes out of.
Saw a cool idea of cranes using a turbine to lift large concrete blocks with excess energy created during the day, and using the turbines to create electricity as the concrete lowers during times of need