How to Build a Vertical Axis Wind Turbine By Hany DeaN

Description :
Helix - S type wind turbines for low winds and high speed winds , it will not go out of control.
Helix type is very safe for birds and do not need to be installed as high as other types of wind turbines. our 2KW wind Turbine , before we install on the roof of the building , i put on the ground, the wind turbine running well.
If you would like information about this turbine write to:Hany Dean - Email greenofearth@gmail.com
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