Energy 101: Wind Power

See how wind turbines generate clean electricity from the power of wind. The video highlights the basic principles at work in wind turbines, and illustrates how the various components work to capture and convert wind energy to electricity. This updated version also includes information on the Energy Department's efforts to advance offshore wind power. Offshore wind energy footage courtesy of Vestas.
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[gopronoscope]

You helped me a lot with my presentation, thanks!

[carolinaamparo]

I am doing a science project on this and your video helped lots! Thanks again;)

[joshuadye]

best video ever and they have inspired me!

[frankfrankerson]

anyone know what injuries you would get jumping into the blades of a turbine?

[vaibhavsridhar]

Thank you Now i got an idea of making this stuff in my exhibition....

[insideout]

Thanks I was doing a presentation and you helped me do it!

[Pufflune]

I’m here because this was in a state test I took in school

[Gryphiniix]

First a wind turbine blade works sorta like an airplane wing. Blowing air passes around both sides of the blade. The shape of the blade causes the air pressure to be uneven - higher on one side of the blade and lower on the other. And that's what makes it spin...the uneven pressure causes the blades to spin around the center of the turbine. (I was typing out this part out for my report, and I decided to comment it)

[reaghangatta]

I didn't notice how big it was and didn't believe one of the wings is as long as a football field until that boat went by!!!!

[sharezbenjamin]

Thank you for that info would love learn from you again

[ceef]

1:58 might be an error, graphic says "more than 150 feet" but the narrator says "longer than a football field"--which are 100 yards?

[Maya-nlgp]

You helped we with my project thx a lot
YAY

[elisazhou]

Thx this is very helpful for my PowerPoint presentation on wind energy

[noneyours]

How dangers of a job is it to put them up and take them down

[AflacMan]

These systems only produce electricity at about 35% efficiency.  A spiral shaped wind catcher turbine... of the same height... can produce power at 95% efficiency.  They are also smaller, can be packed into a MUCH smaller area, are lighter, cost less, and can stand up to hurricane force winds.  These turbines must be shut down if a wind over 50 miles per hour hits them or be damaged by spinning too fast.  Spiral column turbines... the faster the wind, the more energy they can produce.  The propeller design takes a MINIMUM wind speed of 15 mph to even get MOVING... spiral column... a breeze at only 1/2 mph can get them moving and producing power.

Corporate and political greed keeps the systems from going mainstream.

[cordeliablakeslee]

I love use Avasva Solutions for that issue.

[pfzht]

It's an inefficient waste, high maintenance and low return. Thorium molten salt reactors, when?

[anthonyvaricelli]

I keep picturing Donald Trump trying to attack one of these with a jousting lance lol

[grahamflowers]

Betz limit has been smashed and debunked regards Graham S Flowers