Hi!
The largest wind turbines now produce up to 6 mw.
I have seen plans for putting the wind turbines up at 18,000', into the jet stream to produce ENORMOUS amounts of energy.
The stats I read said that if all the practical land in both Dakotas and part of TX were used, it would power ALL of the US. This info is at least 3-4 years old-turbines are much more efficient now.
What about when there's no wind? One solution, that is starting to be used, is to store the energy in giant hydrogen fuel cells during the day, and run them down at night-giant batteries.
They are already doing several projects storing solar radiation to use at night.
cliff
YIP
PS-If everybody drove a plug-in vehicle, we would be doing great. During the night, the elec companies can fill the vehicles with their excess capacity, and use them during the day during peak times to power the grid-like a huge number of nano-batteries on a national scale.