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 ...

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 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 ...

Sometimes it’s not sunny enough to depend on solar power, or windy enough to turn the windmill. So, Finnish researchers have devised a year-round, 24/7 energy source: a battery made from sand. Markku ...

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 ...

Engineers in Finland may have discovered a cheap and effective way to get the most out of their country's wind and solar power systems. Polar Night Energy claims to have constructed "the first ...

Holly has a degree in Medical Biochemistry from the University of Leicester. Her scientific interests include genomics, personalized medicine, and bioethics.View full profile Holly has a degree in ...

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 ...

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 ...

The world’s first sand battery acts as a high-capacity reservoir for excess wind and solar energy. Energy is stored as heat, which can then be transferred for commercial use. Currently, the battery is ...