Simple Solar Setup ?

[MarkP]

I currently have three 240 watt panels connected in series. They put out about 90 volts in full sunlight and charge a 48 volt battery bank of eight 6-volt Costco golf cart batteries in series through a 45 amp mppt controller by Morningstar. I have a 2,700 watt re-purposed UPS by APC. So far this system has met all my needs but that really isn't saying anything because I don't have refrigeration yet. Till now I have only been using lighting, tools, and a vacuum cleaner. I will be very curious to see how well this holds up to real life daily living demands. The refrigeration could be a killer. I did run a test one night using 1,000 watts of halogen lights. Ran somewhere between 6 and 9 hours before shutdown (I fell asleep). That's how much the batteries can put out from a fully charged state down to when the UPS pulls the plug. In daily use I would never go that low. I panicked about having driven my batteries into the ground and fired up the charger so I don't have a good handle on how long it would have taken to recharge using only solar, but assuming the equivalent of 3 hours full sunlight per day generating .72 kw I will be lucky to take in 2 kwh. How much I can get out as 110 volt ac will be even less. First on my wishlist is 3 more panels.

Batteries $800
Panels $900
Racks $300
Controller $450
Misc Wiring $200

I am sure there is more but the tab so far is $2,650.