If you find land located far from the grid, it's usually pretty cheap. The cost of connecting the grid may be several times the cost of a complete solar system. It certainly makes sense in that situation. 22 years ago I was commissioned to design a multi-fuel generator that would be the household PRIMARY electricity supply. A developer wanted to put a neighborhood on a plot of land purchased for a song -- way up in the mountains outside Provo, UT. The generators were to run primarily on CNG or LPG, with gasoline as a back-up.
