'No-water' hydropower turns England's hills into green and pleasant batteries

Bernie Ecclestoned@sh.itjust.works to Technology@lemmy.world – 190 points –
'No-water' hydropower turns England's hills into green and pleasant batteries
rechargenews.com
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Very cool. Do we know what the fluid is? Does it pose any health risks if it somehow leaks into the groundwater?

It's just good ol' fashioned mercury.

The article claims it's 2.5x as dense as water, which according to this density chart is probably bromine.

I actually bet it's just very very fine stonedust and water in suspension.

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They're saying it's minerals and a polymer. In that case even a leak into groundwater would just be leaking groundwater. (Depending on what the polymer is)

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