Environment
Abandoned coal mines could store wind energy
Surplus wind power can be used to heat up water in flooded mines – a test of the idea is being planned in Scotland in 2024
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Surplus wind power can be used to heat up water in flooded mines – a test of the idea is being planned in Scotland in 2024
Supercapacitors are charged like a battery but release their energy more rapidly – and some of their components can now be built from old plastic bottles