Piggott Axial Flux Alternator Wind Turbine

The Piggott Turbine has two types of designs – 2F and 4F Turbine design.

For the 2F design:

• Rotor diameter – 2 meters
• Rated power output – 500W at 12m/s wind speed
• 12/24/48 volt off-grid battery charging or high voltage for grid-tie inverter
• Annual energy production:
• 500 kWh/year at 4.1 m/s average wind speed
• 1000 kWh/year at 5.6 m/s average wind speed
• Material cost – 393 – 449 USD (350 – 400 Euros)

For the 4F design:

• Rotor diameter – 4 meters
• Rated power output – 2000 W at 12 m/s wind speed
• 24/48 volt off-grid battery charging or high voltage for grid-tie inverter
• Annual energy production:
• 1800 kWh/year at 4 m/s average wind speed
• 3000 kWh/year at 5 m/s average wind speed
• Material cost – around 786 USD (around 700 Euros)

For the structure turbine design:

The blades are hand carved from softwood. The alternators are comprised of neodymium magnets mounted onto laser-cut steel magnet discs and stator is comprised of hand-wound copper coils. The mounting is comprised of bearings to mount the blades and magnet discs, steel frame to attach the stator and bearing to a tower and a tail boom mechanism.

Further details of the design can be found in the handbook.

All technical information is available in the instruction manual. The owner of the design can be contacted through his email or his phone number.

Lifetime, disposal, and warranty information is unavailable and dependent on individual manufacturing of the product.

The testing is usually done by the owner of Piggott Wind Turbine, Hugh Piggott, and through Solar Energy International (SEI), a seminar was conducted. The product was tested for power output at varying wind speeds, which varies based on blade size.

Grinding, sanding, drilling, welding are dangerous practices and should be performed with caution. The construction involves several dangerous tasks and some materials may be sharp or toxic, so caution is required during construction. The manual discusses potential hazards in depth. There are no known hazards during the windmill’s operation.