1 kW Wind Turbine

The super quiet blades and hub are made of fiberglass-filled nylon with a diameter of 2m (8'). These are attached to the steel bearing hub mounted to the frame with two tapered roller bearings complete with seals. The inside of the hub is filled with bearing lubricant and should not need any attention for the life of the bearings.

The square grey box you see in this photo is the housing for the rectifiers, which convert the alternating current from stator to a direct current before it is transferred down to the voltage regulator on the ground.

The tail assembly is mounted on a hinge and acts as a mechanical speed control. In high winds of aprox. 22 m/sec. the tail vane will continue to be aligned with the wind but the wind load on the blades will make them furl away from the wind and slow down.

We fabricate the steel frame on a special welding jig to ensure proper alignment and a uniform fit of all the parts. The vertical portion of the frame has two bronze bushings: one on top and the other on the bottom. This allows for easy alignment to the wind.

The coils in the stator can be custom wound for either 12, 24 or 48 volts. The 12 volt coils are used where the tower is close to the battery storage area in order to limit voltage loss. The stator is encased in fiberglass  and completely sealed from the elements.

The two rotors, one on each side of the stator, have 24 permanent Neodymium epoxy-coated  magnets. These are mounted with stainless steel screws.