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Wind energy

Wind energy involves the use of wind turbines to convert kinetic energy into mechanical energy that is used to produce electricity. Turbines can be used for applications large and small, from battery charging and auxiliary power to grid-connected "farms" for commercial electric power.

  • Vestas wind turbines power up (photos)

    Vestas wind turbines power up (photos)

    Vestas is an energy company that manufactures wind turbines for on-shore and off-shore use. It's predicted that 10 percent of the world's electricity will come from wind by 2020. Here's a look at...

    3 | April 26, 2011 9:13am

  • From iPods to thermostats, tackling home energy (photos)

    From iPods to thermostats, tackling home energy (photos)

    The man who headed the original iPod development team has a new project - building a better thermostat.

    1 | October 25, 2011 7:55am

  • Herzog & de Meuron imagine green Paris pyramid (photos)

    Herzog & de Meuron imagine green Paris pyramid (photos)

    Architects Herzog & de Meuron unveiled Le Project Triangle in 2008, but the project received approval in 2011 for construction in Paris, France. The structure will rise 200 meters from the Porte...

    3 | April 26, 2011 9:44am

  • Vestas wind turbines power up (photos)

    Vestas wind turbines power up (photos)

    Vestas is an energy company that manufactures wind turbines for on-shore and off-shore use. It's predicted that 10 percent of the world's electricity will come from wind by 2020. Here's a look at...

    3 | April 26, 2011 9:13am

  • BrightSource Energy's concentrated solar power (photos)

    BrightSource Energy's concentrated solar power (photos)

    Cleantech startup BrightSource Energy employs the use of concentrated solar power, or CSP, to generate electricity. The technique uses a large field of mirrors to concentrate sunlight onto a small...

    3 | April 26, 2011 8:50am