Wind Energy

by : Jada Pridgen

What is it used for

  1. generate electricity
  2. power sailboats,
  3. water pumps
  4. power wind mills
  5. wind-powered vehicles
  6. lots more

Advantages



  • Wind power is plentiful,
  • renewable,
  • widely distributed,
  • clean,
  • produces no greenhouse gas emissions during operation
  • and uses little land.
  • Wind turbines are available in different sizes which means a vast range of people and businesses can use them.
  • Any effects on the environment causes lees problems than those from other power sources.





Wind Turbines

  1. wind turbines use blades to capture the winds kinetic energy. they work because they slow down the speed of wind.
  • the wind blows, and it pushes against the blades of the turbine, making them spin.
  • they power a generator, this is how electricity is produced.




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Wind Power Plants

  1. wind power plants are clusters of wind turbines used to produce electricity.
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When was wind energy first used?



  • We've used the wind as an energy source for a long time.
  • The Babylonians and Chinese were using wind power to pump water for irrigating crops over 5,000 years ago and sailing boats were around before that.
  • Wind power was used in the Middle Ages, in Europe, to grind corn.



where is it found

Wind is one of those resources we find all around us in nature.

  • its in the air!

Where would you use it?


  • choosing the location of a wind farm is known as siting a wind farm.
  • wind direction and speed must be studied to decide where to put the turbines.
  • turbines are built in rows facing the wind
  • the area must have strong, steady winds.
  • wind speeeds
  • The best places for wind farms are in coastal areas, because wind blows stronger over water than land
  • at the tops of rounded hills, open plains and gaps in mountains - places where the wind is strong and reliable.
  • offshore turbines produce more electricity than ones on land, however they cost more.



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disadvantages

  1. wind turbines do not produce the same amount of electricity all the time. There will be times when they produce no electricity at all.
  2. Wind turbines are noisy.
  3. Many people see large wind turbines as unsightly structures and not pleasant or interesting to look at
  4. Large wind farms are needed to provide entire communities with enough electricity.
  5. flying birds and bats could get hurt.
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