| 摘要 |
A wind turbine blade to be mounted to a wind turbine hub configured to be mounted for rotation in a hub plane of rotation so as to generate electricity is provided. The blade extends lengthwise between a hub mounting root end and a blade tip end. The blade extends a blade width between a leading edge and trailing edge such that when mounted to the hub the blade is twisted at the root end by an angle of between 19° to 21° relative to the plane of rotation of the hub and wherein the blade is twisted at a tip end to rotate in a plane parallel to the plane of rotation of the hub to within ±1°.
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