I wonder how well this would work for folks who have a well; made by the Amish:
https://www.lehmans.com/p-1384-lehmans-own-galvanized-well-bucket.aspx
They’ve worked well for many with wells that aren’t very deep. Portable generator inlets and switches work well for deeper wells, as do PV solar powered pump systems.
Either kind of system needs a cistern near the surface for storing water, though, for much less fuel, maintenance and bother with the generator system and no batteries needed for the solar system (water stored instead of electric power). And either will need gravity feed to the dwelling or a light duty booster pump with pressure switch (and expansion tank preferred by some).