will mirror the comments from LamontC above... having natural gas for a fuel is a definite plus...propane and gasoline provide additional problems... I would guess most people down here not on natural gas have a 6500-8500Watt gasoline powered portable... either back feed into the breaker box or more likely dedicated HD extensions running to the refrigerator and small window mount air conditioner in the bedroom...

as a courtesy to your neighbors, get one with a good muffler... you sure can get aggravated trying to sleep with no power, 90+F weather, and a noisy generator next door