I believe that most wind generator installations generate more "good will" for the owners than electrical energy.
There are some installations where wind power has genuine economic value -- such as off-loading diesel generators in remote communities.
There seem to be many more where it displaces little fuel cost, at the expense of making the effective energy cost higher. While the "green energy consumers" apparently volunteer to pay a higher rate to encourage this technology, I have not seen an accounting that makes it clear they aren't being subsidized by their lighter shade of green counterparts.
It's little wonder that the public and the media are confused. When you see a windmill turning -- and it's a synchronous generator, then it turns with enthusiasm (at one of say two speeds) even if it is producing only its minimum operating power level. I find it difficult to explain the principles to non-technically inclined observers. I lose them when I start with the word "synchronous", long before I get to the cubic power vs. wind speed curve.