Swiftly generating electricity
The Swift wind turbine, also designed for homes or businesses, has a traditional fan-like turbine design with some changes to make it quieter. The Swift has five, rather than three, blades and an "outer diffuser" ring that goes around it. That ring cuts the noise level to 35 decibels and reduces vibration, according to the company.
See related story: "Good data needed for small-wind turbines to spin"
May 12, 2010 8:22 AM PDT
Photo by: Cascade Engineering
| Caption by: Martin LaMonica
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