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[–] derram 0 points 1 point (+1|-0) ago 

https://archive.is/iyZ7l | https://vgy.me/GUfO4T.png :

German institute successfully tests underwater energy storage sphere | Ars Technica

'A German research institute has spent years trying to tailor pumped storage to ocean environments. '

'Often, these pumped storage facilities are auxiliary to other electricity-generating systems, and they serve to smooth out fluctuations in the amount of power on the grid. '

'The Fraunhofer Institute for Wind Energy and Energy Systems Engineering envisions spheres with inner diameters of 30m, placed 700m (or about 2,300 ft) underwater. '

'The institute wrote that it wants to conduct a follow-up project using a larger sphere that would be underwater for a longer time. '

'Much like traditional pumped storage, when electricity is cheap, water can be pumped out of the sphere, and when it’s scarce, water can be let into the sphere to move the turbine and generate electricity. '

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