What are the basics one would need to run a small fridge 24/7? How many panels/batteries/what size inverter? I currently have 4 100 watt panels,four deep cycle batteries and 2000 watt inverter. This runs pretty much everything,TV, Laptop, Lights, even a portable swamp cooler but not a fridge or the small AC ( i have a generator for the AC. I live in the AZ desert so lots of sunshine here. My system needs to upgrading. Been running it for almost 5 years. Building a new tiny house and would like to have a small fridge again . I have heard that full size units are actually more energy effiecient.