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The First Commercial Sand-based Thermal Energy Storage in the World Is in Operation.

Polar Night Energy’s first commercial sand-based high temperature heat storage is now in operation at Vatajankoski power plant area. The heat storage, which has a hundred tons of sand inside, is producing low emission district heating to the city of Kankaanpää in Western Finland.

Source: polarnightenergy.fi

storage sand-based operation heat commercial energy emission kankaanpää