Finland's Pornainen, with a population of 5,000, has launched the world's largest sand battery, built by Polar Night Energy for the district heating company Loviisan Lämpö. This battery can cover the town's summer heating demand for nearly a month or a week in winter.
This project has reduced heating-related emissions by nearly 70%. In the context of Europe's lithium-ion battery shortage, this project could serve as a reliable alternative.
The European Commission plans to triple its energy storage capacity by 2030, but currently, Europe remains dependent on imported fuels.
