Heat batteries quietly solve a major transition gap, storing surplus renewable electricity as heat.

The Finnish start-up says its sand battery technology is scalable from 20 to 500 MWh with charging power from 1 to 20 MW, depending on industrial needs.

Researchers at Yonsei University have unveiled a breakthrough “thermal sponge” capable of slashing annual ...

An energy supplier in Finland has announced the upcoming construction of an underground seasonal thermal energy storage facility about the size of two Madison Square Gardens that could meet the ...

Get your news from a source that’s not owned and controlled by oligarchs. Sign up for the free Mother Jones Daily. When rainwater falls, it soaks down into an aquifer, a layer of porous rock or loose ...

I am a versatile writer with a keen interest in exploring and sharing insights on lifestyle, food, and technology. With a deep curiosity about the world around me, I enjoy delving into various ...

France-based FHE Group has developed a 2.5 kWh storage device that can store electricity as heat during the day and release this heat at night to power a heat pump for space heating and hot water.

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 ...