Yeah, small gas generator is still a possibility... but storing enough gasoline for a protracted outage is more difficult than storing propane, and propane generators can automatically kick on vs. gas I have to be home to go wheel it out and plug it in and flip circuits, etc. So there is some benefit to a propane fired generator for emergency power. Someday I'd love to be solar+battery/PowerWall... may not be in the cards for this house specifically.