Chris Remington@beehaw.orgM to Technology@beehaw.org · 2 months agoA Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%www.cnbc.comexternal-linkmessage-square11fedilinkarrow-up199cross-posted to: technology@lemmy.world
arrow-up199external-linkA Finnish town is heating itself with 2,000 tonnes of crushed rock: its giant “sand battery” can cover almost a month of heating demand and has cut district heating emissions by 70%www.cnbc.comChris Remington@beehaw.orgM to Technology@beehaw.org · 2 months agomessage-square11fedilinkcross-posted to: technology@lemmy.world
minus-squareHerbGrower@slrpnk.netlinkfedilinkarrow-up2·2 months ago0c water kept cool by a big ice tank. Traditional radiators wouldn’t work but there are options that do. High thermal mass of water too.
0c water kept cool by a big ice tank. Traditional radiators wouldn’t work but there are options that do. High thermal mass of water too.