I think I broke resources somehow. :/
In post-content, I went from Talos to Santorini, then by tram to Astrape, collected the Carbon Filter, then came back to see if I could install it at Talos. I was very pleased to see that there was an action for this! :D
However, after I'd done it, all my resources (including Power) seemed to stop depleting. Can provide save if required.