We are facing an energy crisis on Earth. Burning fossil fuels are harming the atmosphere; this global warming and affects produces chemicals that hurt our body. People are starting to think about using alternative energy. Wind power would be our first choice, because it's clean, inexhaustible and renewable. Today, wind power is mainly used in Europe. We believed wind power would be the main source of alternative energy for world use.
Since 400-500A.D, people used windmill energy in farms for grain grinding and water pumping. In 1888, the first wind turbine that generated electricity was discovered by Charles F.Brush in Ohio, USA. However, there are limitations on speed. People did not pay much attention to it; rather, they used fossil fuels. In the 1920s, the improvement of windmill energy was widespread in some rural area in the U.S. and Europe. (Dodge 2006). Later in the 1970s, people realized the shortcomings of fossil fuels; they started looking to alternative energy. Wind is costless, clean and renewable. (Brown 2005). When sun heats on the earth, wind cools down the surface of the Earth. Thus, as the sun shines, there will be inexhaustible wind blowing. Windmill energy uses the power of wind through a generator to generate electricity to urban areas. (2005).