Finland is turning one of the planet’s most ordinary materials into a high impact climate tool, using hot sand to store vast ...

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 small municipality in southern Finland recently installed the world's largest "sand battery" to supply the town's heating. The new sand battery, designed by Polar Night Energy, is effectively a ...

A small town in Finland is experimenting with a new type of infrastructure: the world’s largest sand battery. The battery—a 42-foot-tall, nearly 50-foot-wide silo filled with 2,000 tons of crushed ...

Finland has inaugurated the world’s largest sand battery this week, a 1 MW/100 MWh thermal storage system developed by Polar Night Energy. The industrial-scale unit in Pornainen began operating in ...