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by gorgoiler 2350 days ago
Dinorwig in (under!) Snowdonia is another implementation of the idea, at a large scale:

https://en.m.wikipedia.org/wiki/Dinorwig_Power_Station
1 comments
Intermernet 2350 days ago
That's impressive. The scheme opened in 1984, payed for itself in 2 years, can supply 1.7MW, and stores 9.1GWh.

Why is this not being done more?

link