World's largest commercial sand battery heats town in Finland
The town of Pornainen, Finland, is now heated by a 13-metre-tall silo holding 2,000 tonnes of crushed soapstone, described as the world's largest commercial sand battery, storing renewable energy as heat for the community.
Why it matters
This project demonstrates a working method for storing renewable energy to provide heat, addressing the challenge of replacing fossil fuels in district heating.
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