Wind Power Wind power is another alternative energy source that could be used without producing by-products that are harmful to nature. Like solar power, harnessing the wind is highly dependent upon weather and location. The fins of a windmill rotate in a vertical plane which is kept perpendicular to the wind by means of a tail fin. As wind flow crosses the blades of the windmill, it is forced to rotate and can be used to generate electricity. This wind collector rotates in a single vertical axis, making this device independent of the wind direction, which may generate more electricity.
Windmills are a growing technology.