TASS2025 Breakthrough Technology: 500°C Sand Thermal Storage Revolutionizes Energy Systems
In Pornainen, Finland, a massive sand battery built from repurposed crushed soapstone became operational this June, establishing a new milestone in global energy storage innovation. This groundbreaking system converts surplus solar and wind power into thermal energy reaching 500°C, and store it long-term in a highly efficient insulated tower. The stored thermal energy not only supports district heating throughout the town but also extends to certain industrial processes, significantly reducing reliance on fossil fuels. Results include complete elimination of oil dependency, 60% reduction in wood consumption, conversion of biomass boilers to backup systems, and nearly 70% decrease in overall carbon…