According to the American Wind Energy Association, a typical residential turbine should generate about 5000 watts. Factors such as the size of the residence, the height of the tower for the turbine and the average local wind speed affect the exact number.
Depending upon the size of the home in question, the generating capacity needed can range from 2000 watts up to 10,000 watts. Turbines with this range of capacity are between 12 and 23 feet in diameter. The 5000-watt turbine given as the typical example is approximately 18 feet in diameter.
The turbines sit upon poles which average 80 feet in height, although they can range from 30 feet to 140 feet. In general, the tower should be 30 feet taller than surrounding trees or other landscape features.