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If you go and read the specifications give by the company at http://www.renewabledevices.com, you will find the statement by the company that says "Of huge importance to all of us at Renewable Devices; our SWIFT Rooftop Wind Energy System? is of an environmentally sustainable ?harm neutral? design, which allows the SWIFT? to become carbon and energy positive within four years, when sited correctly (quantified by independent studies).". This does not agree with the statement reported in the article "Cascade estimates the payback on the upfront cost can be as low as three years". Being energy positive or paying back the investment are two different statements that should not be confused. In reply to: "Quiet wind-turbine comes to U.S. homes"

October 27, 2008

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