Check out this massive wind farm along the Oregon/Washington border. Until I started researching energy for WWO, I didn't know this existed. It is called the Stateline Wind Energy Center, and it generates up to 300 MW of power, enough for about 72,000 homes.
You can also enter the coordinates 46.0021416683, -118.737589258 into Google Earth to get a better look at this.
(Also try the song Windpower.)