The ideal required wind energy can be found at high altitudes where continuous wind speeds occur. In general the sea coastal areas and / or hilly areas are more preferred locations to establish the wind mills because of uninterrupted flow of wind.
Wind – movement of air is called wind. The wind moves everything whatsoever comes in its way. Wind turbines or wind generators, like propeller blades of aircraft, turn and power electric generator generates an electric current. In more simplified it is stated that a wind turbine is opposite of a home fan. Instead of using electricity to make wind in fan, a wind turbine uses wind to make electricity. The wind turns the blades on the tower and spins a shaft which is connected to a generator to generate electricity. This production of electricity mainly depends on the velocity of the wind. Only higher wind velocity throughout the year makes the wind mill project viable. The wind turbine system consisting of blades, shafts, gears and
generator is operated through a sophisticated computer controlled system installed at the base of the tower which also have sensors to sense the wind speed and its direction to switch on and off the wind turbine generator.
Generally the user company gives a time limit or schedule for building and operation of wind mill project and the supplier (s) and / or contractor (s) should abide by the given time table as much as possible. However in certain cases the delivery time of many materials is long which delays for completion of project. Prevalent circumstances like human factors, whether or other natural calamity also sometimes create late completion. Ideal time for completion of project could be 3-4 months.
Most countries maintain whether, oceanic and atmospheric records for different purposes including future prediction, study, educational research, etc. These information are