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by rootusrootus
1347 days ago
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Sounds like this one:
https://www.youtube.com/watch?v=CMR9z9Xr8GM They do say it is about equivalent to a single AA alkaline. It is not exactly an optimized efficient setup, but still, it gets the point across. Pumped hydro is a grid scale option, in places that have the ability to store a lot of water. |
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