Works for shallow wells, but deep ones will require buckets or multi-stage manual pumping.
My well (when I lived in New Jersey) was 120 feet down. A 220 generator is your best bet for a situation like that (you don't want to drink shallow well water in NJ, sure to get dysentery or worse).
I have a daughter. I tell her, "911 is what you dial after you're raped. 1911 is what you should have before they try."