Makani Power is making an airborne wind turbine, which would be able to operate in higher altitudes and capture more wind energy. This pylon attaches to a wing that spins in a large circle while tethered to a platform. It takes essentially the same circular path of a tip of a wind turbine's blade but, because it's lighter and operates higher, it can deliver cheaper electricity, according to the company.
March 3, 2011 9:31 AM PST
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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