Yea TVA does have a wind farm. Its on Buffalo Mountain near Oak Ridge... They have 29 1.8 mw turbines made by Vestas, enough to power 3800 homes. Each 1.8 mw cost over well over a million.
TVA: Wind Turbine Energy
Also I found this... TVA will purchase the entire output of a qualifying system at $0.15 per kWh through a participating power distributor, and the consumer will receive a credit for the power generated. Participation in this program is entirely up to the discretion of the power distributor. As of June 2004 there is one 20-kW wind project utilizing this program.
If you click on this link it shows that the border of NC, TN, SC, and GA has some promsing wind sites. Much higher strength than the supposed "Saudi Arabia of Wind" which is TX up thru ND.
Wind Energy Resource Atlas of the United States
I read online where one doctor tried to use his family farm near Boone NC as a wind farm, but some Smokey Moutain Act prohibits multiple towers from ruining the landscape. He was proposing a $50 million project with 30 1.8 mw.
Anyway I would think that 1 100-250 Kw wind turbine could be approved. You could sell the power to a local power company or a small town, and you can rent the tower out to cell phone companies. So a little research got me to find that a 250kw turbine will produce 300,000kw per year, then multiply that by the 15 cents TVA will give you and you get $45K a year. According to a website you can get at least $1300 a month from cell phone companies for renting your tower. Hmmm it all depends on the total cost for a 250kw turbine+tower+installation+maintenance but this can be profitable.
This guys power point presentation suggests that a 750 kw turbine costs between $650K-$900K, and produces 1,700,000 kw per year. With TVA giving you 15 cents thats $250K per year in sales, you could pay the loan off in a couple of years.
http://www.harvestcleanenergy.org/conference/HCE4/HCE4_PPTs/Wind.pdf