catch on Nostr: npub1hpcdf…ghjn3 I think it needs soil rather than rock. Or apparently aquifers ...
npub1hpcdfjpxrawnmu6ryh36ce7xu4qd54pu6xca394yhvmyzlery0tqvghjn3 (npub1hpc…hjn3) I think it needs soil rather than rock. Or apparently aquifers work too https://www.sciencedirect.com/topics/engineering/underground-thermal-energy-storage