Wind

Marissa Foy

IS WIND RENEWABLE OR NON-RENEWABLE?

Wind is a renewable energy, Wind is the movement of air from an area of high pressure to an area of low pressure. In fact, wind exists because the sun unevenly heats the surface of the Earth. As hot air rises, cooler air moves in to fill the void. As long as the sun shines, the wind will blow. And as long as the wind blows, people will harness it to power their lives.
Bill Nye The Science Guy on Wind (Full Clip)

. How does it work to produce energy for individuals and whole groups or communities?

You can use Wind Turbines to produce wind. You can use them for your home or in your community.

Wind Turbines in your Community!

In your communities there are like a hundred wind turbines in one place that is called a "Wind Farm". They are tall as a 20-story Building!
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Wind Turbines for Home use!

Instead of wind turbines for you communities, you can have one for your homes. But instead of buying those expensive wind turbine you can make one yourself!
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How to Build Your Own Wind Turbine

WIND TURBINES IN A BAD WAY!

Wind turbine is good, but i can go out of hand sometimes. In a bad storm a wind turbine can spin so fast it can EXPLODE!
Windmill/Wind Turbine Explosion

Who in the world is using wind energy now?

  • Around 80 different countries use wind power to generate electricity commercially (as of 2009).

  • In 1997 wind power generated only 0.1% of the world’s electricity, this increased to 1.5% in 2008 and 2.5% in 2010.

  • In some countries such as Denmark and Portugal, wind power contributes around 20% of the total electricity production.

  • The large blades of wind turbines can interfere with some radar systems used by weather stations or air traffic controls, at times being mistaken for planes or various weather patterns.

  • Smaller turbines are sometimes used to charge batteries or as backup power in caravans and sailing ships.

  • Modern wind turbines usually have 3 blades which can reach speeds at the tip of over 320 kph (200 mph).

  • The tips of large wind turbines can reach heights up to 200 m (650ft).

  • Wind turbines can even be installed offshore on floating structures, sending the electricity generated back to land with the help of undersea cables.

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Where is wind energy found on Earth?

Wind energy is used all over the world in United States, Spain, Great Britain, Germany, Denmark, and India. In some countries wind makes up a significant part of electricity supply network. Example: Denmark draws more than 20 per cent of its entire electricity supply from wind power, and some areas of Germany are over 50 per cent
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IS WIND EXPENSIVE

The power of wind was first harvested in the eighties and back then, the price was quite high indeed. Back when money had more value than it does now, wind energy was as expensive as thirty cents per kilowatt-hour sometimes, but the costs of producing electricity through utilizing wind speed has decreased significantly now. An electricity plant powered by wind turbines today can produce electricity at five cents per kilowatt-hour or even less at times. Lowering the costs to such low levels have been made possible due to the tremendous technological progress that we have made in the last two or three decades.
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