4 ms·
> mechanical earth dams (store energy in potential energy mass, less dangerous than an actual water dam, a lot easier to build) a lot easier to build? This cl
by matkoniecz 4y ago
> mechanical earth dams (store energy in potential energy mass, less dangerous than an actual water dam, a lot easier to build)
a lot easier to build?
This claim seems wrong, given that pumped-storage hydroelectricity is in actual use, when this is purely theoretical.
"mechanical earth dams" gives info about water dams - is it existing even as a theoretic design?
- smaudet 4y agohttps://www.energyvault.com/gravity https://www.energyvault.com/gravity Its a company with as I understand it proven designs. Besides, the concept is trivial and applicable and replicable by almost anyone. I don't understand why there is so much skepticism around these things...
- dmitriid 4y agoNuclear energy as a concept is trivial. There are a lot of details between "concept is trivial" and "it's practical at scale"
- matkoniecz 4y ago> Besides, the concept is trivial and applicable and replicable by almost anyone. Has anyone made one operating at major scale? And comparable to say serious pumped storage? At their page I see only "demonstration unit". I suspect that either it is not solved, expensive or not trivial. And not replicable or there is nothing to replicate or not worth replicating. For comparison https://pl.wikipedia.org/wiki/Elektrownia_Por%C4%85bka-%C5%BBar https://pl.wikipedia.org/wiki/Elektrownia_Por%C4%85bka-%C5%B... can operate at 500MW for 4 hours, was build in 1979 and is a normal pumped storage battery (large enough to be classified, operated and treated as a power plant).