Tag: Polar Night Energy

July 13, 2022

Thermal storage system based on sand

The world’s first commercial sand-based thermal energy storage system has been developed to back up a heating network in Finland. Technology company Polar Night Energy and utility organisation Vatajankoski joined forces to create the system, which is adjacent to a power plant. It has 100kW heating power and 8MWh capacity, and can heat the sand […]