South Africa Sandoval, director of University of Science and Technology Innovation Center Yost, Professor Yang has recently invented a new type of structure of vertical axis wind turbine. Yost said that the invention will significantly reduce the cost of wind power generation, horizontal axis wind turbine vertical axis will gradually be replaced by wind turbines.

At present, a common horizontal axis wind turbine is a wind turbine, that is, leaves in the wind-driven rotating around the horizontal axis; and
Vertical axis wind turbines, as its name suggests, it is a vertical set of blades, these blades around a vertical axis the same.

Yost said the average wind turbine vertical axis contains only a layer of leaves, he invented the vertical axis wind turbine by the interlocking of the upper, middle and lower leaves composed of three vertical. As a result of more than two layers of leaves, the size of its cut-off energy an increase of 200%, while electricity generation capacity and cut-off fan area is directly proportional to the wind.

At the same time, vertical axis wind turbines in general, he leaves the new design so that continuous rotation in strong winds, more energy can be intercepted, it will increase the generating capacity of 200%. According to theoretical calculations, the structure of this new wind generator will be generating power than its vertical axis wind turbines to increase 400%. Preliminary results of wind tunnel tests also support this inference. Yost said that compared to horizontal axis wind turbine, vertical axis wind generators of the material leaves no harsh demands, but also easy to manufacture, and easy to automate production.

Currently, equipment wind generators manufacturers, such as pre-installed into the cost of wind power accounted for 70%, if the pre-operation to reduce 60% of the cost of wind power will decrease by 42%. In this way, even in the absence of the policy of subsidies, wind power will also be a wise choice. Yost said that they would in two years so that 100-kilowatt wind turbine vertical axis of the operational and 1 in 5 year-megawatt vertical axis wind turbine development.

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