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250MWh ‘Sand Battery’ to start construction in Finland, for both heating and ancillary services

Energy-Storage.News · Cameron Murray · last updated
Technology provider Polar Night Energy and utility Lahti Energia have partnered for a large-scale project using Polar’s ‘Sand Battery’ technology for the latter’s district heating network in Vääksy, Finland. The project will have a heating power of 2MW and a thermal energy storage (TES) capacity of 250MW, making it a 125-hour system and the largest […]