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May 16 2013
In order to get off oil as our main energy source, renewable energy needs to be cost-competitive with natural gas and coal. Innovations in solar and wind power are making strides toward that goal, but it will take a major paradigm shift to bring them both down in cost.
The Chaska, Minn.-based company Sheer Wind thinks it has a design that could bring the cost of wind power down to a price competitive with natural gas. Daryoush Allaei, Sheer Windís chief technical officer, told DNews that a utility-scale system of these wind turbines ó that is a 100 to 500 MW power plant ó the cost could be as low as 1 cent per KWh. For comparison, conventional tower and blade wind power plants cost about 45 to 80 cents per KWh and natural gas plants cost about 2 to 3 cents per KWh.
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