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 new industrial-scale 'sand battery' has been announced for Finland, which packs 1 MW of power and a capacity of up to 100 MWh of thermal energy for use during those cold polar winters. The new ...

Forward-looking: A Finnish startup has secured $7.6 million Euro ($8.2 million) in seed funding to scale up its unique sand battery technology. The money will be used to grow the company's sales and R ...

The community swimming pool in the Finnish town of Kankaanpää is heated with sand—well, a sand battery, to be more specific. Energy utility Vatajankoski has partnered with Polar Night Energy, a ...

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 ...

Jack has a degree in Medical Genetics from the University of Leicester.View full profile Jack has a degree in Medical Genetics from the University of Leicester. Many countries are seeing energy prices ...

A company in Finland has created an an unusual storage solution for renewable energy: One that uses sand instead of lithium ion or other battery technologies. Polar Night Energy and Vatajankoski, an ...

On the edge of a small town in Western Finland, a startup called Polar Night Energy worked with a local utility to pioneer something that doesn’t exist anywhere else in the world: a giant sand battery ...

The challenge of storing energy year-round has been one of the biggest obstacles to the widespread adoption of green power. However, Polar Night Energy has developed the world's first fully functional ...

Last month, Finnish startup Polar Night Energy announced that it is building a giant sand battery capable of heating a town of 5,000 people for up to a month. That’s on a single charge. Polar Night is ...

Batteries are the key to the future of the most abundant sources of renewable energy, solar and wind power for one obvious reason: intermittence. If power generators want to replace fossil fuels ...

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...