Quiet wind-turbine comes to U.S. homes - CNET News - 0 views
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A home wind turbine already installed at 250 sites in Scotland is now being sold across the pond. Cascade Engineering said Monday the Swift wind turbine, for homes and other buildings, is available in the U.S. and Canada. (Credit: Cascade Engineering) The Swift tries to set itself apart from existing small wind turbines with a design that reduces noise. Also, the turbine can be attached to a home, rather than to a free-standing pole or tower. Like other wind turbines, the Swift has blades that turn and power a generator. But rather than the typical three blades, the Swift has five and a ring that goes around them. That "outer diffuser" ring cuts the noise level to 35 decibels and reduces vibration, according to the company.