Sustainability Times
Summary
In a groundbreaking step toward sustainable energy solutions, Finland has unveiled the world’s first industrial-scale sand battery. This innovative energy storage system, developed by Finnish startup Polar Night Energy, aims to significantly reduce emissions and enhance grid stability. Located in the small municipality of Pornainen, the sand battery utilizes surplus renewable energy to generate heat, which is then distributed to the local district heating network.
The sand battery represents a revolutionary approach to energy storage, utilizing abundant natural resources in an innovative way. Standing at an impressive 42.6 feet tall and spanning 49.2 feet, this massive installation is packed with 2,000 tons of crushed soapstone, a by-product from Finnish fireplace manufacturer Tulikivi. The stored heat generated by this system is fed into the district heating network, providing thermal energy to homes and municipal buildings. Remarkably, the sand battery can meet nearly a month’s worth of local heating demand during the summer and up to a week in the winter.
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