Very new to solar but not new to conservation. I want to build an independent battery backup system that can run my 5 cubic foot freezer and 18 cubic foot fridge (energy star). I have been confused by some of the varied information out there on manufactures and what they want to sell you. Manufacturer states both together use 625 kw a year. 1.7 kw per day. I have read that a 48v system is better than 12 due to wiring cost and mppt charge controller is the best. Want to use flooded batteries and quality inverter. I live in arkansas and plan on installing panels on ground mounted, adjustable tilt brackets instead of roof mount. Have nice south facing location. Now question is how many 230v panels, and 12v deep cycle batteries in series would it take to build system to do this and interested in having it be expandable in future.