How does it work? Wind turbines are usually made up of 3 propeller-like blades. The rotor is attached atop a tall tower where the wind is more powerful. As the wind blows, it spins the rotor. As the rotor spins, the energy of the movement of the propellers gives power to the generator. The magnets and copper wire inside the generator produce the actual electricity
Waste Products The only harmful products of wind energy are those that result from the: Manufacture Transportation Maintenance Of the wind generation equipment After the production phase, wind energy does not produce any harmful byproducts.
Advantages Wind is free and can be easily captured for energy use. No greenhouse gases or other pollutants after the production phase. They take up little space and the land surrounding the wind turbines is still available for use. They are pretty. They can be used in remote areas (off the grid).
Disadvantages Wind is not consistent. Not as efficient in producing energy as the burning of fossil fuels. Without subsidies, wind turbines are not economically practical. Can kill birds.
Interesting Facts Can be bought for commercial or personal use. Largest blade is 75m long with a rotor diameter of 154m A single 1-MW wind turbine running for 20 years is equivalent to burning 29,000 tons of coal or 92,000 barrels of oil