World’s largest 1 MW/100 MWh sand battery commissioned in Finland

Finnish startup Polar Night Energy has commissioned the world’s largest sand battery in Pornainen, southern Finland. The industrial-scale system delivers 1 MW of thermal power with 100 MWh storage capacity, covering up to a month’s summer heat demand and nearly a week’s winter demand for the local district heating network.

World’s largest 1 MW/100 MWh sand battery commissioned in Finland

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