A central pole referred to as the
axis has the electrical generator bolted to the top. The picture
on the left shows the axis in pink and the generator is mauve.
The axis and generator are inserted
into the wind-rotor assembly and the generator is bolted to the
inner-tube. In this way, when the wind rotor turns, it also turns
The wind-rotor will start to turn
in a light breeze of about 7 kilometres per hour (4 knots).
Maximum RPM is reached in winds of
50 kilometres per hour (27 knots).
The wind-rotor has a distinctinve
shape that creates an aerodynamic braking effect. This means that
winds stronger than 50 kilometres per hour will not increase the
wind-rotor speed beyond its maximum of 90 RPM.
The wind-rotor is rated to produce
power in winds up to 230 kilometres per hour, the central wind
speeds of a Category 2 cyclone.
The wind-rotor is designed for maintenance-free
operation for fifteen years.
Empowering the Wind Energy