01 Mar '12, 8pm

How Wind Turbines Work

How Wind Turbines Work

Wind-generated electricity is one of the first images that comes to mind when someone says “renewable energy.” New wind farms—both massive and not so much—are under construction all over the world. But do you know how wind turbines work? It’s actually very cool. The image of a wind turbine is pretty familiar—it’s basically a massive three-bladed pinwheel on top of a huge stalk (in most cases). I’ve seen dozens of clusters while driving south through Illinois, and I’m sure most people have similar experiences. The blades turn (slowly) as the wind blows, generating electricity. The Visible Bits The pole supporting the moving parts of the wind turbine is called the “tower” (surprise, surprise). Directly on top of the tower is the nacelle , which is the housing for all the parts of the wind turbine that aren’t the giant blades. Outside the nacelle is the most recognizable part...

Full article: http://cleantechnica.com/2012/03/01/how-wind-turbines-work/

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