Green Power Switch: Wind Power
The wind might be invisible, but in places where it blows steadily and strongly it can be a powerful source of energy. With a little help from TVA, the force that helps a sailboat glide across the lake or a kite soar high in the sky can also generate enough electric power to light your home and keep your TV, computer, and other appliances running.
Heres how wind power works
First TVA sets up a wind machine. Its basically a futuristic looking windmill. Three 135-foot-long rotor blades are attached to a turbine mounted at the top of a tower thats more than 250 feet tall. The turbine is connected to an efficient electric generator.
Then TVA puts several of these wind machines on a site that is known for its windy conditions. Although the machines arent living things, when several of them are planted together in the same place the area is called a wind farm or wind park. Why? Because they are growing energy that can be harvested by TVA!
The result? No pollution. No mess. Just clean, green power from the wind.
Down on the wind farm
TVAs Buffalo Mountain Wind Park near Oak Ridge, Tennessee, is the first commercial-scale use of wind power to generate electricity in the southeastern United States. There are 18 wind-powered generators on the two-acre site.