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 ...

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 ...

A research group from Ghana has developed a solar PV-powered steam cooker (ISESC) with sand-based thermal energy storage (TES). “The potential of sand, given its thermal stability and low cost, has ...

Finnish startup Polar Night Energy has announced that construction is proceeding according to plan on its thermal energy sand-based storage system in the municipality of Pornainen in southern Finland.

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 ...

The systems, which can store clean energy as heat, were chosen by readers as the 11th Breakthrough Technology of 2024. We need heat to make everything from steel bars to ketchup packets. Today, a ...