Well then, everything changes based on your specific application. Residential solar cells come in larger panels, so it's easier to get the amount of power you'll need. So the big question actually is battery storage. There are days when the sun doesn't shine there (not too many) and obviously you will have no solar generation at night. AFA panels, 6KW should work to keep a battery bank charged and run 2 A/C units. You will need enough battery capacity to get you through the night minimum. I would seriously consider hiring an engineer who has training in this area to put a system together for you. I'm in Florida (I'm an EE with training in this area) so I'm too far away and I don't do design projects. Just a warning - it will not be cheap.
Al