The next biggest question is cost. The unit will retail for $6,495, but there are currently many federal and state rebate programs that will give you back 30% or more of the cost for the unit and installation. In class 4 winds zones, like the area here in Chicago, the turbine will produce over 2700 kWh annually. This would equal out to about 20% of the energy used in the average single family home. You can find out what the wind speeds are like in your area using the EPA’s wind maps.
The national average price for residential energy is around $0.11 per kWh, but it can be up to $0.27 in some places. Some electric companies do offer wind energy programs that typically charge 2 or 3 cents more per kWh. The math comes out to savings that starts at around $350. If you live in an area where prices for kWh are much higher, like New York or Hawaii, then that savings could be over $700 annually. Considering additional operating costs, it is expected that it might take about 10 years for the unit to pay for itself. That may seem like a long time, but it highly competitive compared with other wind and solar energy generators. The calculator at WindEstimator.com can help you understand the costs for your specific geographic area.