How geothermal energy from old coal mines could heat UK homes

The same tunnels used to extract fossil fuels for centuries are now helping to heat British homes with clean energy from the Earth’s core. It’s called mine water heating and it has the potential to provide critical warmth to hundreds of thousands of homes in the country’s north. At least one quarter of UK homes sit above abandoned coal mines. Residents in these towns and cities concurrently grapple with skyrocketing energy bills. Tapping mine water heat from beneath their feet could be a win-win for these communities. And the technology is already in operation. Last year, one of the largest…

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