Patent ID: 8322035

Claim:
A method for installing a vertical axis wind turbine having support limbs, each support limb having a first end and a second end and defining a circumference and rotation radius of a wind rotor, a vertical shaft, and a plurality of blades, each blade being an asymmetrical cambered airfoil having a convex upper surface, a lower surface, and a chord line, the method comprising: connecting the first end of said support limbs with said vertical shaft selecting the blades so that a ratio of the rotation radius of the wind rotor to a length of the chord line of the cambered airfoil of the blades is in a range of about 1.8 to 4, installing each of said plurality of blades at the second end of the corresponding support limbs in an aligned horizontal level, facing the convex upper surface of the cambered airfoil of each blade to said vertical shaft, and positioning and fixing each blade so that an angle between the chord line of the cambered airfoil of the blade and a tangent line to the circumference of the corresponding support limb is within 0 to 10 degrees.