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They convert kinetic energy into mechanical power which produces electricity and heat.

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1. Noisy and loud to be around.
2. Dangerous to migratory birds and other animals.
3. Ruins the look of the land and aesthetic.
4. Offshore turbines can be difficult to get to or maintain if need be.

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1. Renewable and undepletable energy.
2. Emits no harmful toxins or gases into the atmosphere or environment.
3. Low maintenance cost.
4. Can be placed nearly everywhere, including land and water.

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Overall the cost of a wind turbine is rather expensive, but overtime is very cheap to have with little to no maintenance.

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Wind energy is relatively simple. The wind turns two or three propeller-like blades around a rotor. The rotor is connected to the main shaft, which spins a generator to create electricity.

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Turbines and more...

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How do wind turbines work? License: Creative Commons BY-NC-SA More information at http://k12videos.mit.edu/terms-conditions