Making some research on the subject might enable you to build your wind turbines at a fraction of the cost and is well worth the effort of looking for information on the subject. Oh, and look for the information yourself; don rely only on a friend or neighbor telling you about it, as he might have been misinformed. Finally, know that a basic knowledge on how do wind turbines work is almost all you need to get started. And the good news is that many DIY kits are available, explaining you in detail how to proceed to build your own wind turbine, making the project easier to do than ever. A word of caution however: not all guides are created equal. If you haven done so already (this is one of the first things I did), take a walk outside and think about 1) where youe going to build this thing, ie- work space, and 2) where youe going to set it up. The small and compact wind turbines for home use will make little noise which is ignorable but will defnitely not wake up the neighbours from their sleep. In fact there is another misconception that they will hamper the television signals but it is in no way a proven fact. They are available for around $6000 but the price will vary according to the features and size of the home wind turbine. You will be saving some money on your utility bills which will round up to a substantial amount yearly. If the turbine is producing more energy than you require then you can also sell the excess to others to pocket a substantial amount.
Source: wind turbines