Finns open first commercial sand battery

Stefan Mileschin · 8th July 2022, 07:14

Better than making sandcastles

Polar Night Energy says it's just opened its first commercial sand battery at the premises of "new energy" company Vatajankoski, a few hours out of Helsinki.

For those who don’t know, a sand battery is a thermal energy storage system, built around a big, insulated steel tank -- around 4 meters (13.1 ft) wide and 7 meters (23 ft) high – and full of sand. When this sand is heated up, using a simple heat exchanger buried in the middle of it, it can storing an impressive 8 megawatt-hours of energy, at a nominal power rating of 100 kW, with the sand heated to somewhere around 500-600 degrees Celsius (932-1112F).

https://fudzilla.com/news/55108-finn...l-sand-battery

8th July 2022, 07:14	#1
Stefan Mileschin [M] Reviewer Join Date: May 2010 Location: Romania Posts: 149,092	Finns open first commercial sand battery Better than making sandcastles Polar Night Energy says it's just opened its first commercial sand battery at the premises of "new energy" company Vatajankoski, a few hours out of Helsinki. For those who don’t know, a sand battery is a thermal energy storage system, built around a big, insulated steel tank -- around 4 meters (13.1 ft) wide and 7 meters (23 ft) high – and full of sand. When this sand is heated up, using a simple heat exchanger buried in the middle of it, it can storing an impressive 8 megawatt-hours of energy, at a nominal power rating of 100 kW, with the sand heated to somewhere around 500-600 degrees Celsius (932-1112F). https://fudzilla.com/news/55108-finn...l-sand-battery

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