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Pumped-storage exploits pre-existing landscape features. Battery storage is essentially building storage from scratch in places where no favorable geological fe
by the8472 10y ago
Pumped-storage exploits pre-existing landscape features. Battery storage is essentially building storage from scratch in places where no favorable geological features exist.
How much would digging a mineshaft, a bedrock cavern and a lake or additional caverns just to pump water up and down cost?
- throwaway91111 10y agoWhen weighted against cost and expected lifetime, it may not make sense to do this over e.g. solar + molten salt.
- greglindahl 10y agoExcept that utility-scale thermal solar + molten salt doesn't exactly have a good track record so far. It'd be great if it lived up to expectations...