Primus Windpower Air 40

Primus Windpower Air 40


AIR 40 is the premier micro-wind turbine for land-based applications. It operates efficiently across a wide-range of wind speeds, providing energy for telecom, water pumping, lighting, SCADA, off-grid homes, or other low energy demand battery charging applications. The AIR 40 is ideal for pairing with solar to offset seasonal variation, delivering more consistent energy.

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Advanced microprocessor technology for superior performance and high wind protection without mechanical braking.

Blades designed for quieter operation, durability and optimum energy capture in most wind speeds.

Lightweight design is simple and easy-to-install; integrated controller for plug-and-play operation

Pair with solar PV for redundant energy production year-round.

Produces 40 kWh of energy per month generating energy in a wide range of wind speeds.

  • EnergyApprox. 40 kWh/mo at 5.8 m/s (13 mph)
  • Swept Area1.07 m2 (11.5 ft2)
  • Rotor Diameter1.17 m (46 in)
  • Weight5.9 kg (13 lb)
  • Shipping Dimensions686 x 318 x 229 mm (27 x 12.5 x 9 in) 7.7 kg (17 lb)
  • Startup Wind Speed3.1 m/s (7 mph)
  • Voltage12, 24 and 48 VDC
  • Turbine ControllerMircoprocessor-based smart controller
  • BodyPermanent mold cast aluminum
  • Blades(3) Injection-molded composite
  • AlternatorPermanent magnet brushless
  • Overspeed ProtectionElectronic torque control
  • Survival Wind Speed49.2 m/s (110 mph)
  • Mount1.5 in schedule 40 pipe 48 mm (1.9 in) outer diameter
  • Wind Speed Operating Range3.1-22 m/s (7-49 mph)
  • Optimum Wind Speed Range4.5-22 m/s (10-49 mph)

Coming Soon


The Air 40 ships within a few days.