We are planning to install a solar system at our mountain house. We are putting all appliances on gas and a gas on demand water heater. That only leaves a small freezer, well pump, lights etc for the solar system to run. In GA it will work like a charm.
My case, I am thinking of doing the same thing, but so far if I can get past the zoning restrictions I only have room for about three or four regular sized solar panels, then I have to find a propane-fueled emergency generator that accepts the small tanks like you see on an outdoor grill. That still means I need to rely on the utility company for the majority of power needs since solar really does not provide all that much energy even on the sunniest days.
Add in the cost of the panels themselves, the price of the total number of batteries needed, and the cost for installing everything and I am not certain it is all that feasible yet.