One of my life long friends is building an off grid house right now. I've been helping him with sizing of the panels, batteries, voltage regulator, inverter, power management equipment, etc. He's doing solar, wind and eventually will have a generator set up off of a stream that flows across his property. It takes a lot of careful planning unless you are willing to spend a fortune on batteries and PV panels. His refrigerator runs off of 48 volt DC. That's great and all, but it cost about four times what a regular frig costs....
That’s fantastic! The cost may be high today, but with things going the way they are, the investment made will have been well worth it.