My cousin and her husband have built a '64 GMC bus into an RV and have 8 435w panels on the roof and are using a Nissan Leaf battery (plus one module) to power everything but the water heater. They have a mini-split A/C and 2 window units (one dedicated to cooling the battery bay) and I've seen them running all 3 A/Cs, plus power tools, compressor and =still= charging the battery. :-) In their initial research, they found that people were using these same batteries to make their own "power wall" for a whole lot less than Tesla's charging and for more storage, to boot.
See
http://www.beginningfromthismorning.com/.
Lyle