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Old 08-07-19, 04:53 PM   #2
Bicycle Bob
Join Date: Sep 2008
Location: Spiritwood, Northern Saskatchewan
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I can never understand why they would suggest size limits. There's the household gravity light using a sandbag already. It sounds very similar to pumped hydro, just for different geography, etc. You could put one under downtown Regina very cheaply. You could also just use a narrow shaft and a cavity at the bottom, pumping water. One hybrid I like would use a kite to haul a tank car up an incline to replenish a reservoir. It could also work on a vertical rig. If the wind drops, they spill a bit and haul the rest.

Last edited by Bicycle Bob; 08-07-19 at 04:56 PM.. Reason: Aha addition.
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