Designed to produce energy in very low winds, Skystream 3.7™ begins producing power in an 8 mph breeze with full output achieved at 29 mph. Skystream may produce 400 kWh per month. That is 40 - 80% of the electrical needs of most homes. → wind turbine info

Windward ...
"Price was a leading factor. Actual projected savings and payback on our investment were also big concerns. Aesthetics also played a part in our decision and we thought the Skystream structure itself was very attractive to look at. We felt our neighbors would not consider it an eyesore either. Of course, we want to try to help the environment, what with all the news reports all about going "green" and we wanted to be a part of that movement. We also believe that if/when we ever retire and sell the house, having a wind turbine up and running and saving on electric bills would be a big plus to any future owners." - Nancy from Texas