A while ago we discussed a system which compressed air in an underwater sphere by pumping water in, then recovered the power by releasing the water through the turbine.
I have been trying to find the details of it, but all I can find is a more recent experimental one which just lets water run in to generate.
http://euanmearns.com/a-review-of-under ... r-storage/ shows an example, and its rigid sphere version seems more limited to me than the one which would work the other way round.
Can anyone help me find the older one - which would obviously need stronger spheres but wouldn't rely on being used at great depth.
Thanks
A
Grid-scale Storage
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AE-NMidlands
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Grid-scale Storage
2.0 kW/4.62 MWh pa in Ripples, 4.5 kWp W-facing pv, 9.5 kWh batt
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!
30 solar thermal tubes, 2MWh pa in Stockport, plus Congleton and Kinlochbervie Hydros,
Most travel by bike, walking or bus/train. Veg, fruit - and Bees!