We have a generator that runs on gas, propane, and , , , I forget the third one haha. We have gasoline and propane in the shed. We had an electrician set up a special line that allows us to go directly into the panel so we would not be limited to extension cords. Our generator is strong and can pretty much run the whole house if we turn off what we are not using.
We have a freezer and a back up refrigerator in the garage, all packed to the gills with back up food so the generator is super important to protect against the food going bad. We also have dried and canned food too.
And the means to protect it all!