Windmill in your backyard for $8500
Available in 35-110 foot heights (determined by your site characteristics), this slim yet high-performance wind generator can produce 400 kilowatts of energy per month, up to 90% of an average household’s energy consumption. Skystream works efficiently with your local utility grid, too, switching back to grid power when wind speeds drop below 8 miles per hour. So what’s the fine print? Skystream, while intended for residential use, requires roughly an acre of land to function properly, and costs $8500 including installation of the 35-foot tower. Southwest Windpower estimates the wind tower paying for itself in four to twelve years, depending on your energy consumption and local utility rates.
Full Article with images at Inhabitat