>>12470209The main issue would be how self contained and prepared the bunker is. Geothermal energy is effectively endless and completely immune to whatever happens on the surface, unlike other renewable energynsources like solar, wind etc. Assuming such a permanent source of electricity is secured, everything else would be solved. Even oxygen could be produced through water electrolysis. Vegetables could be grown under lamps. Such a system would remain viable potentially for various generation, assuming all the necessary parts of the machines can be at lewst jury-rigged.
