Comment on Good news for 100% clean energy. Geothermal has finally arrived
gandalf_der_12te@feddit.org 1 week ago
I think geothermal is a scam?
I remember reading somewhere that geothermic heat basically doesn’t replenish (or only does so at geological timescales), and by extracti g heat from underground we’re basically depleting the underground heat reservoir, leading to shrinkage of the ground and therefore possible cracks in buildings.
Antitoxic9087@slrpnk.net 6 days ago
It is highly dependent of the local geological conditions. Convection-based geothermal plants (those with hot spring flowing around) probably have less constraints on heat extraction limit. Conduction-based geothermal plants will face more problems.
In some shallow geothermal use case the ground is used as seasonal heat storage so heat renewable rate is not an issue.