In my Peak Oil presentation I talk about wind being a viable alternative - there's now an excellent discussion over at the Oil Drum about the viability of wind. Turns out that the EROEI is 20-25:1 which is outstanding (and significantly better than deep water oil - how about that). As always, some of the best information is in the comments (see especially the comparison of wind with photovoltaics near the bottom).
So there's room for hope.
And that's all I'm going to say about that.