solo@slrpnk.net to Green Energy@slrpnk.net · 16 days agoWe went to Finland to hear about the new 'sand battery' that will turn stored renewable energy back into power for the electrical gridwww.livescience.comexternal-linkmessage-square3linkfedilinkarrow-up15arrow-down10
arrow-up15arrow-down1external-linkWe went to Finland to hear about the new 'sand battery' that will turn stored renewable energy back into power for the electrical gridwww.livescience.comsolo@slrpnk.net to Green Energy@slrpnk.net · 16 days agomessage-square3linkfedilink
minus-squareKorhaka@sopuli.xyzlinkfedilinkEnglisharrow-up1·11 days agoI am kinda curious what sort of capacity and self discharge various forms of thermal battery have. How well insulated is a typical hot water cylinder? Then I often start thinking of various DIY heating options involving fire.
I am kinda curious what sort of capacity and self discharge various forms of thermal battery have. How well insulated is a typical hot water cylinder? Then I often start thinking of various DIY heating options involving fire.