1. Wind Power By: Kady Hamilton and Emily Lowe

2. Primary energy source Wind– clean and renewable – Doesn’t release harmful gases- CO2 or nitrogen oxides into atmosphere

3. History of Energy Source 5000 B.C.- boats used wind energy By 11 th century windmills were used 1887- first windmill built 1931- 31 meter tower 1941- 75 foot blades 1980- wind farm has 20 turbines 1991- wind farm consists of 11, 450kW turbines

4. Cont… 1991- turbines produce energy for 2,700 homes 2008- 186 wind farms – 2,120 turbines– enough energy to power 1,523,052 homes – Saves 6,156,175 tons of carbon

5. Geographic Distribution Machines placed in greater numbers to benefit areas and more people Break away from dependence on foreign oil and fossil fuels which bring hazards to air Most popular in the United States. – Top 10 (U.S. being first) Germany, India, France, United Kingdom, Spain, China, Italy, Denmark, Portugal

6. Types of Pollutants Causing health problems – Flicker and noise Ringing in ears Headaches Sleeplessness Dangerously elevated blood pressure heart palpitations itching in the ears eye watering, earaches pressure on the chest causing them to fight to breathe.

7. How does this turbine work Anemometer Blades Brake Controller Gear box Generator High-speed shaft Low-speed shaft Nacelle Pitch Rotor Tower Wind direction Wind vane Yaw drive Yaw motor

8. What’s required in making it Work Wind- from of solar energy – Caused by uneven heating of the atmosphere be sun

9. Pros to this Option Wind is free No greenhouse gases Takes up very small area Various sizes for businesses Job opportunities on machines Save money on electricity Electricity generated- 76% of S02 emissions Doesn’t pollute air or water

10. Cons to this Option Damaged in storms Blades hit birds Create noise from turning or blades Interference with television reception

11. Environmental Impacts Energy supply is still dominated by fossil fuels, which contribute to the main enviornmental problems at world level. – Climate change and air pollution

12. Abundance of this Energy Type Unlimited wind

13. Cost of Building and Maintaining Costs of installing will vary depending on… – Wind resource assessment and site expenses In 2007 costs of a commercial wind mill ranged from 1.2 million to 2.6 million

14. Research Points – The Illinois Department of Natural Resources conducted a study in 2007- far fewer instances of bird deaths from wind turbines than some feared. The mortality study, conducted at a wind energy installation, found an average of one bird per turbine was killed a year. – http://thesouthern.com/news/article_6255fdb2-97db- 5273-8510-673a6eb3e401.html#ixzz1qQhw9b8n http://thesouthern.com/news/article_6255fdb2-97db- 5273-8510-673a6eb3e401.html#ixzz1qQhw9b8n

15. Work Cited http://www.windturbine.me/prosandcons.html http://www.buzzle.com/articles/wind-energy-pros- and-cons.html http://www.buzzle.com/articles/wind-energy-pros- and-cons.html http://www.thesolarguide.com/wind- power/history.aspx http://www.thesolarguide.com/wind- power/history.aspx http://windeis.anl.gov/guide/basics/index.cfm http://www1.eere.energy.gov/wind/wind_how.html http://www.guardian.co.uk/environment/2008/oct/ 17/wind-power-renewable-energy http://www.guardian.co.uk/environment/2008/oct/ 17/wind-power-renewable-energy

16. Cont… http://www.electricalpollution.com/windturbi nes.html http://www.electricalpollution.com/windturbi nes.html http://www.google.com/imgres?q=wind+farm http://www.google.com/imgres?q=wind+ener gy+flicker&um http://www.google.com/imgres?q=wind+ener gy+flicker&um http://www.google.com/imgres?q=wind&um= 1&hl http://www.google.com/imgres?q=wind&um= 1&hl