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  1. Climate Insights Channel
  2. How Abandoned Coal Mines Might Provide Sustainable Heat
Climate Insights Channel
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How Abandoned Coal Mines Might Provide Sustainable Heat

Karrie GordonFeb 14, 2022
2022-02-14

The coal mines of Britain played a significant role in the development of industry, but now with so many abandoned and all set to be closed by October 2024, the U.K. is looking into alternative uses for the mines, reports CNBC. It’s part of a worldwide trend of moving to sustainability and emission reduction, with countries everywhere tackling solutions in new and innovative ways.

Scotland is doing research into finding a way to harness the heat that is trapped in water that has flooded the old mines to provide heating for buildings. The Glasgow Geoenergy Observatory is drilling boreholes into mines that were naturally flooded over time and that have a heat signature between roughly 52-55.5 degrees Fahrenheit (11-13 Celsius); in comparison, the groundwater in Scotland is generally around 50 degrees Fahrenheit (10 C).

With fully a quarter of U.K. residences sitting atop abandoned coal mines, the heating potential is enormous. Already in northeast England, the South Tyneside Council is funding a project that will capture the geothermal heating potential from the abandoned coal mines in the area and utilize it to heat buildings.

“The water in these mines is a low carbon, sustainable heat source, which under the right conditions can compete with public supply gas prices and deliver carbon savings up to 75% compared to gas heating,” according to Britain’s Coal Authority.

Harnessing Sustainable Innovation With KGRN

Drilling into old mines for geothermal heating is being done in many countries, including the Netherlands and Spain, and is part of innovative solutions by countries to find renewable, sustainable sources of energy.

China is currently the world leader in total renewable energy capacity, holding 31% global capacity.

The KraneShares MSCI China Clean Technology Index ETF (KGRN B-) capitalizes on investing in clean technology in China’s growing economy.

KGRN tracks the MSCI China IMI Environment 10/40 Index and is based on five clean technology themes: alternative energy, energy efficiency, green building, sustainable water, and pollution prevention.

It allows investors direct exposure to ESG market movers in China such as Li Auto Inc. at 10.00%, Xpeng Inc. at 8.66%, and BYD Co. at 7.31%.

The ETF has an expense ratio of 0.78% and $164 million in assets under management.

For more news, information, and strategy, visit the Climate Insights Channel.


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