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Wind Energy: It Can Blow You Away

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Wind energy is the fastest growing renewable energy source in the world. How is it sourced and converted into electricity? Here's a presentation that tackles the answers to these questions.

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Published in: Environment

Wind Energy: It Can Blow You Away

  1. 1. WIND ENERGY: It Can Blow You Away
  2. 2. THE SUN HEATS THE EARTH UNEVENLY The Earth is covered by both land and water, which heat and cool at different rates Source: Ask The Earth is tilted, creating seasonal differences The Earth rotates, creating daytime and nighttime
  3. 3. UNEVEN HEATING CAUSES AIR TO MOVE Warm pockets of air rise, and others move in to replace them—thus, the wind blows. Source: Ask
  4. 4. THE WIND’S ENERGY CAN BE CONVERTED INTO ELECTRICITY THROUGH WIND TURBINES
  5. 5. PARTS OF A WIND TURBINE Rotor Blade Generator Tower Gearbox (transmission) Nacelle (housing)
  6. 6. Source: Sempra HOW WIND TURBINES WORK Wind pushes the turbine blades and turns the rotor. The rotor turns the rotor shaft and gearbox, connected to a generator. The generator creates electricity, which is transmitted over power lines. 1 2 3
  7. 7. An average 1.5-MW turbine can power 332 US households for a year. HOW MANY HOMES CAN A WIND TURBINE POWER? Source: Wind-watch
  8. 8. WIND ENERGY IS THE FASTEST GROWING RENEWABLE ENERGY SOURCE IN THE WORLD Source: GWEC | Wikipedia 0 50 100 150 200 250 300 350 400 2000 2002 2004 2006 2008 2010 2012 2014 CumulativeCapacity (Gigawatts) Global Wind Power Cumulative Capacity
  9. 9. Source: Wikipedia 15.8% 1.6% 2.3% 2.5% 2.6% 3.4% 6.1% 6.2% 10.6% 17.8% 31.0% 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 (rest of world) Brazil Italy France Canada United Kingdom India Spain Germany United States China WIND POWER PRODUCTION BY COUNTRY, 2014
  10. 10. HOW TALL IS THE TALLEST WIND TURBINE? George, Kenya, 6.1 meters Tallest giraffe Tokyo Skytree, Japan, 634 meters Tallest tower Vestas V164, Denmark, 220 meters Tallest wind turbine
  11. 11. Wind is free and renewable Provides job opportunities Clean, no pollutants produced Can be built in remote areas Available in a range of sizesADVANTAGES OF WIND ENERGY
  12. 12. High initial cost Wind strength and duration aren’t consistent/predictable May be noisy May have negative effects on wildlife Suited to coastal or hilly areas only DISADVANTAGES OF WIND ENERGY
  13. 13. “THE FUTURE IS GREEN ENERGY; SUSTAINABILITY, RENEWABLE ENERGY.” Arnold Schwarzenegger
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