1. Alternative Energy Sources

2. Wind Turbines

3. Wind: A General Description
Wind energy- is a renewable resource that is used to create electrical energy.
Wind- is a natural force that results from the uneven heating of the earth from the sun.

4. What are wind turbines made of?
All wind turbines, are comprised of the following components:
The Rotor (the part that actually rotates in the wind),
The Generator (makes electricity)
Tower

5. How is the energy in the wind captured?
Wind turbines, are like aircraft propeller blades that turn in the moving air. They power an electric generator, which supplies electrical energy.
Modern wind turbines fall into two basic groups
Horizontal-axis variety, like the traditional farm windmills used for pumping water
Vertical-axis design, like the eggbeater-style Darrieus model, named after its French inventor.

6. Wind: Current Technology
Use of wind the fastest growing renewable, unlimited energy resource.
Wind maps determine suitable locations for “Wind farms”
“Wind farms” currently provide ________ MW of electricity.

7. Wind Technology: “Wind Map”

8. Wind Technology: “Wind Map”

9. Jiminy Peak, Hancock Mass.- The Zephyr Turbine