We are working on a wind collector device in MN USA  all calculation should be in output when available using watt, amp, volt. 
Also use adjacent  measurement of horsepower to force to amp to newton  to NAME_1. 
Winds speed ws, wind force w, full twist tw (height of 1 full 360deg). MPH to m/s. 
Use know law's  of physics and theory of energy conversion 
find my surface area and sweep area of 
The device is current vawt. 
Shape is helix
helix incline angle 60deg 
NAME_2 of 13"
Height 6'
TW 1/1'