Well, looking at the South (other than Texas), I'm not sure its really flat enough for the investment. To make it worth it you really need a large flat area with a lot of constant wind. The great plains (ND to Texas) is a much better investment than Alabama. I would bet offshore in the Gulf is worth it[1]. The great plains is not exactly built out yet. Never mind hooking all to a grid that can take it.

Plus, wind power (traditional) does kill birds and bats so there is a problems there.

1) it does apparently given the UK experience improve the fishing