Wind+Power+Energy

 **WHAT IS WIND ENERGY POWER?** Wind energy power is the energy from the movement of the wind across the earth. This energy is a result of the heating of oceans, earth and atmosphere of the sun.  * How do we turn wind into energy? Blowing wind spins the blades on a wind turbine,the blades of the turbine are attached to a hub that is placed on a turning shaft. The shaft goes through a gear transmission box where the turning speed is increased. The transmission is attached to a high speed shaft which turns a generator that makes electricity. If the wind gets too high, the turbine has a brake that will keep the blades from turning too fast and being damaged. There is still the problem of what to do when the wind isn’t blowing. At those times, other types of power plants must be used to make electricity.In order for a wind turbine to work efficiently, wind speeds usually must be above 12 to 14 miles per hour. Wind has to be this speed to turn the turbines fast enough to generate electricity.


 * ENVIRONMENTAL CONCERNS**

=Advantages: = -Wind energy offers a viable, economical alternative to conventional power plants in many areas of the country.AGES -Wind is a clean fuel -Wind farms produce no air or water pollution because no fuel is burned - It help to stop the use of contaminants such as>carbon, oil and gas -This energy is constantly evolving offering opportunities to improve the quality of energy and being cheaper than other types of energy - Reduces the environment impact - This energy is not storable and it depends on where its located, its performance varies, so we cannot trust 100 per cent in wind energy system

**Disadvantages:**
-The most serious environmental consequences may be their negative effect on wild bird populations (killinf of birds by the accidents through the blades of the wind turbines) and the visual impact on the landscape