The world's first operational 'sand battery' can store energy for months

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It's the first sand battery on a commercial scale.

The push for renewable power has meant that researchers are looking for new ways to store energy over the long term. While batteries made using lithium and other earth minerals can be purposed to work as energy farms, the solution becomes unsustainable if the whole world shift to renewables.. While this uses the centuries-old concept to tap into the potential energy of water stored at a higher level, the construction of such facilities can cost millions of dollars.

Naturally, the next question to be asked is if this technology is scalable, and through the establishment of their company, Polar Night Energy, the researchers have attempted to answer that as well. Kankaanpää Currently, the battery powers the central heating system for the district. When energy prices are higher, the hot air in the battery can be used to warm the water and then pumped to offices and homes in the region.

 

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