Polar

Polar night energy sand

Based in Tampere, Polar Night Energy Oy has developed a sand-based thermal energy storage system that efficiently stores heat generated from renewable energy while minimizing costs. It enables our clients to meet their climate goals while significantly reducing energy costs. It stores energy in sand as heat. to participate in all existing grid. . When Tommi Eronen and Markku Ylönen came up with the idea of storing heat in sand, it initially seemed almost daringly bold. Today, their startup, Polar Night Energy, along with its ongoing development of converting stored heat back into electricity, is moving towards a major energy sector. .