Looks like the future, not sure why we don't see more about solar powered setups, that seems to be changing though. What about the consideration of space, or land to house this type of operation.

Even if it were scaled down, the land, zoning, area and space physically needed (whether this would work in the backyard or on some patch of vacant land) and security will all come into play and will 'cost' as well to regulate on a day to day basis.

Being in the desert myself, I love how this all sounds and could theoretically work!