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• B Beehaw - technology Beehaw - technology remote Aug 19, 2026, 4:16 PM You are here

  A Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%

  submitted by remington to technology
  103 points | 11 comments
  https://www.cnbc.com/2026/07/25/finland-sand-battery-renewable-energy-storage.html
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