Sustainability-In-Tech : Sand Battery For Year-Round Heat
Finnish engineers, Markku Ylönen and Tommi Eronen have made a giant battery which stores heat from green energy in sand that can be used as an all-year-round energy supply. Sand Battery The Finnish engineers’ company, Polar Night Energy, has made a sand battery in Kankaanpää, in the west of Finland. The battery consists of large silo which has been…