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Intreresting fact: Sweden is dotted with mines. Many of these are defunct and abandoned. There are plans now to convert several abandoned mines to pumped hydro.
by alkonaut 5y ago
Intreresting fact: Sweden is dotted with mines. Many of these are defunct and abandoned. There are plans now to convert several abandoned mines to pumped hydro.
That is, water is pumped from lower to higher levels in the mines, instead of up a hill to a reservoir.
Great use of existing infra that would be way to expensive to dig for that purpose.
- belorn 5y agoI have not heard about this, and the concept sounds very scary. Old abandoned Swedish mines have a tendency to poison ground water with metals and other pollution unearthed by the mining process. https://www.sgu.se/mineralnaring/gruvor-och-miljopaverkan/ https://www.sgu.se/mineralnaring/gruvor-och-miljopaverkan/