Big sand battery to store wind and solar energy using crushed soapstone

A huge sand battery is set to slash the carbon emissions of a Finnish town.

The industrial-scale storage unit in #Pornainen, southern Finland, will be the world’s biggest sand battery when it comes online within a year.

Capable of storing 100 MWh of thermal energy from solar and wind sources, it will enable residents to eliminate oil from their district heating network, helping to cut emissions by nearly 70 per cent.

The battery’s thermal energy storage capacity equates to almost one month’s heat demand in summer and a one-week demand in winter in Pornainen

https://www.euronews.com/green/2024/03/10/sand-batteries-could-be-key-breakthrough-in-storing-solar-and-wind-energy-year-round

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