Lugh@futurology.todayM to Futurology@futurology.todayEnglish · 4 days agoFinland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWhwww.cnbc.comexternal-linkmessage-square9linkfedilinkarrow-up184arrow-down10cross-posted to: technology@lemmy.worldnews@beehaw.orgeurope@feddit.orgglobalnews@lemmy.ziptechnology@lemmit.online
arrow-up184arrow-down1external-linkFinland builds the world's largest sand battery. Site can cheaply store energy for entire month. No "rare earths" or critical materials used. Estimated at $25/KWhwww.cnbc.comLugh@futurology.todayM to Futurology@futurology.todayEnglish · 4 days agomessage-square9linkfedilinkcross-posted to: technology@lemmy.worldnews@beehaw.orgeurope@feddit.orgglobalnews@lemmy.ziptechnology@lemmit.online
minus-square🌸𝓯𝓵𝓸𝔀𝓮𝓻🌸@sh.itjust.workslinkfedilinkEnglisharrow-up3·4 days ago discharged via heat exchangers to warm water for the local district heating network. It needs certain infrastructure to work. You could also use it to generate electricity. That’s 20-40% efficient. With negative prices in summer these days that would still be interesting.
It needs certain infrastructure to work.
You could also use it to generate electricity. That’s 20-40% efficient. With negative prices in summer these days that would still be interesting.