My home is 3K sq. ft. and my emergency generator is 22KW. It keeps my home running as if the power was still on. Multiple refrigerators, a freezer, microwave, electric stove and oven, microwave, DW, W & D, electric water heater lights and a 3-station split heat/AC system.
My neighbor has a professionally installed solar system with at least 200 sq ft of solar collection and they are constantly complaining that they are depleting their batteries to run a 1800 sq. ft. home in the winter time in eastern WA. Solar is not worth the headaches even discounting the initial costs and the once a decade replacement of equipment.