1. Wind power By Stephen Ha

2. How it works The blades spins the rotor The rotor spins the low speed shaft The low speed shaft is connected to a gear box which spins the high speed shaft The high speed shaft charge the generator

3. Part of a wind turbine 1)Blades: What is harvesting the wind 2) Rotor: What the blades rotate. 3) Pitch: The position of the blade. Used to control the speed of the rotor. 4) Brake: A brake to stop the rotor. 5) Low speed shaft: Connected to the rotor. It spins at 30 or 60 per minute speed. 6) Gear box: Connects the low speed shaft to the high speed shaft to speed up the spin. 7) Generator: Where energy is made. 8) Controller: It controls the speed of the rotor. 9) Anemometer: It measures the wind and keeps data. 10) Wind vane: It measures wind direction so it can face the wind. 11) Nacelle: It is the cover. 12) High speed shaft: Spins the generator. 13) Yaw drive: It spins the turbine so it faces the wind. 14) Yaw motor: Drives the yaw drive. 15) Tower: What the turbine is placed on.

4. Wind Turbine Wind turbine blade is about 40 meters long and the tower is about 80 meters high Wind turbines are used in homes and business they are small and not cost much

5. By 2030 20% of wind energy will help the economy 30% of wind turbine parts has grown in 2005 to 50% in 2008 Wind turbine are changing the material to build wind turbine stronger From 1980 wind turbines got bigger and make more energy

6. Problems The wind power is expensive The wind turbine are loud The turbine can effect electrical at home if built near buy The wind turbine need wind to power Storms can often harm wind turbine

7. Some pollution when it being built Wind turbine cost 1-2 million per turbine People don’t like seeing wind turbine in some landscape Single turbine make less energy then fossil fuel

8. Wind in New jersey Wind farm is in Atlantic city county used by both the Atlantic County Utilities Authority Waste Water Treatment Plant and deliver to electric grid

9. The port Authority of new York and new Jersey they plan to build 5 300 foot tall wind turbines by 2014 new jersey hop to generate 200 megawatts with in 10 year from the wind power Near by new Jersey long island planes to build to 80-100 wind turbine 15 mile off shore. They will generate 350 megawatts and each megawatt could power up to 1,000 homes

10. Wind power is a renewable energy No pollution This is a clean energy