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WIND ENERGY:
It Can Blow You Away
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
UNEVEN HEATING
CAUSES AIR TO MOVE
Warm pockets of air rise, and others move in
to replace them—thus, the wind blows.
Source: Ask
THE WIND’S ENERGY CAN BE CONVERTED INTO
ELECTRICITY THROUGH
WIND TURBINES
PARTS OF A WIND TURBINE
Rotor
Blade
Generator
Tower
Gearbox
(transmission)
Nacelle
(housing)
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
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
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
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
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
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
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
“THE FUTURE IS GREEN ENERGY;
SUSTAINABILITY, RENEWABLE ENERGY.”
Arnold Schwarzenegger
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Wind Energy: It Can Blow You Away

  • 1. WIND ENERGY: It Can Blow You Away
  • 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. 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. THE WIND’S ENERGY CAN BE CONVERTED INTO ELECTRICITY THROUGH WIND TURBINES
  • 5. PARTS OF A WIND TURBINE Rotor Blade Generator Tower Gearbox (transmission) Nacelle (housing)
  • 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. 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. 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. 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. 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. 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. 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. “THE FUTURE IS GREEN ENERGY; SUSTAINABILITY, RENEWABLE ENERGY.” Arnold Schwarzenegger
  • 14. contact: support@slideshop.com fb: theslideshop twitter: @slide_shop blog: http://blog.slideshop.com/ pinterest: Slideshop slideshare: slideshop.com phone: +1 602 559 4554 The world's leading supplier of unique, creative and effective PowerPoint templates. Do you want to customize this presentation? Download the PowerPoint file. Download