Photos: Wind turbines on the roof

Photos: Wind turbines on the roof

Summary: These turbines designed for city rooftops make it possible to generate clean power in the city.

TOPICS: Tech Industry

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  • Helix-shaped turbine for the home

    Aerotecture's Aeroturbines do not use a turning propeller to generate electricity. Instead, the cylindrical shape, which can come in different sizes, houses a helix-shaped turbine.

  • Power of two

    This installation of Aeroturbines in Round Lake, Ill., shows how small-scale wind turbines can be aggregated to generate more electricity.

Topic: Tech Industry

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