Finland is turning one of the planet’s most ordinary materials into a high impact climate tool, using hot sand to store vast amounts of energy and release it as heat when homes and factories need it ...

An innovative thermal energy storage system has redefined the way a small Finnish town heats its residential and commercial buildings, with an enormous silo of 2,000 tons of crushed stone capable of ...

A huge sand battery is set to slash the carbon emissions of a Finnish town. The industrial-scale storage unit in Pornainen, southern Finland, will be the world’s biggest sand battery when it comes ...

Finland has inaugurated an industrial-scale sand battery this week in the southern town of Pornainen, where it'll take over heating duties from an old woodchip power plant for the municipality. It's ...