Small Wind Energy Systems (Wind Turbines) contain electric generators that convert the power of the wind into clean, emissions-free power for individual homes, farms, and businesses. In most areas of the country small turbines may be suitable for owners with as little as one acre of land , and some designs may even be suitable for roof-mounting in certain urban environments.
The Department of Energy has prepared maps showing average annual wind speeds in each of the 50 states :
. The maps are a convenient way to find out the average annual wind speed at your location. Note, however, that at a micro level the speed, frequency, and variability of the wind can vary significantly. Ultimately, you should have a professional take readings at your site to determine if it is suitable for a wind turbine before you move ahead.
The National Renewable Energy Laboratory (NREL) has produced individual Small Wind Electric Systems Consumer's Guides for 38 of the 50 states. NREL's state Consumer's Guides are available for download here:
. (Don't be deterred if a Consumer's Guide is not available for your state--it does not mean that your state is unsuitable for wind!).