Possible Solution (3)

Wind Turbines:   Wind Turbines have blades, just like an electric fan, but instead of using electricity to generate wind, the turbines do just the opposite. Wind rotates the blades, which spin a shaft connected to a generator and the movement leads to the generation of electricity.

Thus, the kinetic energy of the wind is converted into mechanical energy of the propelling blades, which can then be used to do mechanical work like grinding grains, pumping water etc. or with the use of a generator utilized to produce electricity.
Advantages of Wind Turbines:

·         Renewable Source of Energy: Wind is fast moving air, present everywhere. It is renewed all the time as the earth heats and cools. It is a renewable source of energy unlike the fossil fuels like coal dug from the core of the earth and depleting fast. Experts believe that for every kilowatt-hour generated by wind one pound of coal can be saved.

·         Minimum Use of Land: Wind turbines require very little land area. In a typical wind farm, only about 5 percent of the area is used by the turbines and other equipments. The rest of the surrounding area can be used as usual for farming, cattle grazing etc.

Disadvantages of Wind Turbines:

·         Location: A drawback of wind power is that not every location is suitable for a wind turbine. Only select locations have sufficient wind blowing regularly enough to make erecting the turbines worthwhile.

·         Ugly: Wind turbines are not popular with some of the residents of scenic areas, especially those that rely on tourism. They are considered by these people and some others to be blight on the landscape, and they have a point: windmills are obtrusive and unsightly. Some also say they are noisy, but this is really only the case if (as with airports) you live next to one.