Sand-battery thermal energy storage technology
| Date | Round | Amount |
|---|---|---|
| Apr 2024 | Seed Tampere startup Polar Night Energy raised a EUR 7.6M seed round led by Jonathan Oppenheimer to scale its sand-battery thermal storage. | $8.2M |
| Oct 2021 | Seed Polar Night Energy, a Finnish renewable-heat-storage startup, raised about EUR 500k led by Liquido Ventures. | $570K |
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