Finland warms up the world's largest sand battery, the economics look appealing by Tehdastehdas in c/hackernews@lemmy.bestiver.se

[-] Tehdastehdas@piefed.social 2 points 1 day ago

Tried and abandoned. https://www.pinterest.com/pin/saab-thermo-accumulator-in-engine-compartment-sweden-1991--548242954653447125/

Tehdastehdas

joined 1 week ago