At long last deep geothermal energy is powering the electricity grid in Cornwall:
www.bbc.co.uk/news/article...
"The water, super-heated by rocks, will help drive turbines to generate electricity for 10,000 homes, but will also provide the UK's first domestic supply of lithium"
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bbc.co.uk
Earth's heat to produce electricity for homes in UK clean energy first
Water super-heated by rocks will also provide the UK's first domestic supply of the critical mineral lithium.