Selsam invented a new type of multi-rotor wind turbine (wind generator) success came, the wind turbine rotor 25 (rotating device, wind vane) form, the power generated is 10 times that of ordinary steam, and can greatly lower manufacturing costs, especially for poor regions and developing countries to promote universal access.
The new wind turbines installed at a distance, like a snake dance in the air with the wind, inventor Doug – Selsam to the name “sky serpent.” However, this device in the air using wind turbine generaor electricity has not overlook. The world’s largest wind farm Kinderdijk Netherlands – elshout village, although only a small village, but most of the world’s largest wind turbine. However, in the inventor Doug – Selsam’s eyes, the use of turbine and equipped with the 747 wing-sized wind turbine is very clumsy and expensive. “Serpent sky” is very small leaves, and small footprint, and use of GE’s advanced rotary device (leaf) greatly increased the ability of the equipment acquisition. Selsam that the use of “sky serpent” wind turbines will increase the efficiency per unit of time and greatly reduce costs.
Selsam said, as early as 1000 years ago, humans began the use of wind, and designed the first wind collector. But over the years, the design and manufacture of wind turbines has been in the stage of a cost-inefficient. After his years of research, and Fluid Dynamics Laboratory at the University of California, with the help of the design in the early ’80s out of single-rotor wind turbines. But the years of actual use of the results further show that single-rotor turbine’s efficiency is very low, unable to raise the efficiency per unit of time, and because great covers an area of broad size, installation cost is very expensive. So since 1999, he was funded by the California Energy Commission, began to study multi-rotor wind turbines. In 2000, Selsam design and wind power generators manufacture the world’s first wind turbine rotor 7, and the application was successful. In 2003, he designed and manufactured to provide a 20-rotor 3000 watt wind turbine, a serious test after 20 rotor of this device was soon to be put into the market, and achieved considerable economic benefits. According to energy experts predict that this 20-rotor turbine efficiency increased by 40%, single-rotor turbine of the several dozen times.
Until recently, Selsam in the California General Electric Company turbine test facility has successfully tested his latest design and manufacture of wind turbine rotor 25 “sky serpent.” “The sky snake” is wind energy experts believe that is “crazy imagination,” which not only changed the traditional form of wind turbines and rotor, the number of records broken, the electricity generated is also very alarming. Selsam proud of that: this is only the beginning, will snake across the sky, flying in the sky. It is reported that “the sky snake” cost 25 million U.S. dollars, life is 9 years, the United States than the world famous GE’s small wind turbines confidential stronger and more competitive.

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