Hey I live near, I wish I had known of this thread a ways back, there is a great conference everyyear in Asheville, the SE energy conference. Lots of great contractors and tech to not only get a smart one, but efficent also.
here is a
link
Also if you are interested NC State has an awesome ongoing program
here not just solar though, they are a great resource for tax credits as well. And with that much land, you must use a geothermal heat pump!
PM me if you need more or want to talk on the phone. I just built a house nearby, didn't get to use the technology I wanted but got a good edu on it.