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Small Wind Electric System Components
To capture and convert the wind's kinetic energy into electricity, a home wind energy system generally comprises the following:

• A wind turbine (blades) attached to a rotor, generator/alternator mounted on a frame, and usually a tail. Most small wind turbines manufactured today are horizontal-axis, upwind machines that have two or three blades. These blades are usually made of a composite material, such as fiberglass.
• A tower. Because wind speeds increase with height, a small wind turbine is mounted on a tower. In general, the higher the tower, the more power the wind system can produce.
• Balance-of-system components, such as controllers, inverters, and/or batteries. The balance-of-system parts—those in addition to the wind turbine and the tower—you'll need for a small wind electric system depend on your application.