We went state of the art, (at the time 7 yrs ago) with the solar/wind system in Idaho. up graded in Tehachapi a little over a year ago.
I just am lucky, I don't have to deal with a lot of government agencies. where my homes are, make perfect sense for solar and wind. we do back up with automatic generators in case of snow cover. Propane systems.
We heat with state of the art wood systems. It cost a lot to set up, but my heating/cooling, ( no A/C), we don't need it, is less than 1k per year.