As global energy demand accelerates, one truth remains underappreciated: heat is the largest end use of energy. Today, more than 50 percent of global final energy consumption is dedicated to ...

Finnish startup Polar Night Energy and Loviisan Lämpö, a district heating company in Finland, plan to construct an industrial-scale thermal energy sand-based storage system in the municipality of ...

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 ...

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 ...

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 ...

Finland is harnessing the unexpected power of sand to decarbonise industrial heat – a major “blind spot” in global emissions. Industrial heat production is one of the largest and hardest-to-solve ...

Researchers from China have proposed to combine solar-air source heat pumps (SASHP) with sand-based thermal floor storage in rural clean heating renovation projects. “In rural areas where economic ...

Polar Night Energy’s heat storage system is a 23-foot-tall steel container filled with 100 tons of sand. (Polar Night Energy uses the lowest grade of sand that isn’t used in construction.) Hot air ...

Lithium-ion batteries dominate headlines, but most global energy storage relies on simpler methods. These methods include pumped hydro, compressed air, gravity, and thermal storage using sand or rock.

When spring arrives and the heating season comes to an end, keeping warm becomes less of an issue. However, scientists remind us that it is not just a seasonal necessity -- heat is also a valuable ...

Finland is harnessing the unexpected power of sand to decarbonise industrial heat – a major “blind spot” in global emissions. Industrial heat production is one of the largest and hardest-to-solve ...