Inspenet
Summary
Lahti Energia has initiated a joint project with Polar Night Energy to build the world’s largest thermal sand battery with a capacity of 250 MWh. This innovative system will serve as a thermal energy reserve for the district heating network in Vääksy, southern Finland.
In addition to supplying heat at low cost and with low emissions, the thermal battery thermal battery will also contribute to balancing the national power grid. By integrating into the reserve markets operated by Fingrid, it will be able to stabilize supply in times of variability in wind and solar generation.
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