2200 in 3000 acres? Each of them is only 200 feet apart? Isn't that sort of crowded for a wind farm?
Austria gets about 68% of their energy from hydro, with plans to raise the total from renewable energies (I guess that includes windmills) to 80% by 2020. Windmills hardly "power most of Austria". Even if they achieve their goal they will only be getting 10-15% of their power from windmills, and 20% or so from non-renewables. Check out this post from the Prague Post
I would say though that Austria is on their way.
Sweden gets about 2% of their power from wind but that is growing. They would like to get their total renewable power up to 50% by 2020. So Sweden still has a long way to go.
Guess where the rest of the power for these two countries come from.
You got me curious and I looked it up. I think it's a great thing they've built there. It only provides power for 15 minutes or so until diesel generators can start up and take the load, but maybe that's enough for most places. It was built for a very specific purpose but maybe it's a model that could be used elsewhere? What do the engineers on here think?
Personally, I'm warming up to the notion of pumping water into into a reservoir during off-peak ours that could provide hydro electric power during the peak periods. It's a model that's also been proven.