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submitted 2 days ago by Dadifer@lemmy.world to c/science@lemmy.world

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[–] tiddy@sh.itjust.works 0 points 2 days ago (1 children)

I'd assume they'd put these pretty close to the surface, lowers the water pressure and makes it more accessible

[–] Libra@lemmy.ml 4 points 2 days ago

If you read the article it includes this line:

The idea is relatively simple: hollow concrete spheres are installed at a depth of several hundred metres.

The pressure is needed to drive the turbine, cause just gently-flowing water isn't going to cut it.