Alternative Energy Sources

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 www.jiminypeak.com