Back to today’s briefing

Story perspectives

Finland Launches World's Largest Sand Battery for Clean Heat

6/12/2025

30 3

Summary

Story summary

Finland has unveiled the world's largest operational Sand Battery, a groundbreaking innovation by Polar Night Energy for Loviisan Lämpö. This remarkable system captures clean electricity as heat, providing 1MW of thermal power while slashing CO2 emissions by 160 tons each year. It will replace oil in Pornainen's heating network, cutting wood chip usage by an impressive 60%.

1 of 1

Story summary

Finland has unveiled the world's largest operational Sand Battery, a groundbreaking innovation by Polar Night Energy for Loviisan Lämpö. This remarkable system captures clean electricity as heat, providing 1MW of thermal power while slashing CO2 emissions by 160 tons each year. It will replace oil in Pornainen's heating network, cutting wood chip usage by an impressive 60%.