ClimateCNBC Techabout 2 hours ago
World's Largest Sand Battery Powers Finnish Town
1 min read
A 13-meter-tall sand battery in Pornainen, Finland stores 100 MWh of thermal energy using 2,000 metric tons of crushed soapstone. It provides nearly a month of summer heat and one week of winter heat for 5,000 residents. The battery cut emissions 70% and wood-chip use 60%.
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