In my local hardware store they have wind turbines for home use. Do they really work? How good are they?

Yes they really work. Now how well they work depends on where you live. Wind turbines generate the most power if you live in a place that has a constant breeze. If you do live in a place that is windy, you should get one. I have a feeling that if your local hardware store is selling them, then you probably do live in a place that gets lots of wind, that's why they are selling them there.

You can buy one or get one cheaper by building it yourself. I have used an excellent guide to do this. You can check the guide out at http://www.mysolarsecret.com/how-to-build-a-wind-turbine.htm

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