Air 40 Turbine2024-02-05T11:06:13+00:00
air 40 wind turbine

Air 40 Wind Turbine

The proven choice for remote energy

AIR 40 is the premier micro-wind turbine for land-based applications. It operates efficiently low to moderate 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.

  • Advanced microprocessor technology for superior performance

  • 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 on average speed @ 5.5m/s / 12 mph wind speeds, dependant on site conditions


The all-new AIR 40 wind turbine. Quieter, more efficient, and precision-engineered to deliver more energy at lower wind speeds than any other wind generator in its class. AIR 40 is the next generation of AIR turbines with more than 180,000 units sold globally, the world’s most popular small wind turbine.

The AIR 40 uses a new microprocessor-based technology that results in an increase in performance, battery charging capability, and reliability. Additionally, the “flutter” noise from the machine has been reduced.

The controller allows for peak-power tracking of the wind by optimizing the alternator’s output on all points of the cubic curve and efficiently delivers the energy to the battery. The turbine’s smart controller allows it to actually control blade rotation speed thus eliminating the buzzing noise commonly found with most small wind turbines.


Value Specification
Energy Approx. 40 kWh/mo at 5.5 m/s (12 mph)
Swept Area 1.07 m2 (11.5 ft2)
Rotor Diameter 1.17 m (46 in)
Weight 5.9 kg (13 lb)
Shipping Dimensions 686 x 318 x 229 mm (27 x 12.5 x 9 in) 7.7 kg (17 lb)
Startup Wind Speed 3.1 m/s (7 mph)
Voltage 12, 24, and 48 VDC
Turbine Controller Microprocessor-based smart controller
Body Permanent mold cast aluminum basic finish-grey
Blades (3) Injection-molded composite-black
Alternator Permanent magnet brushless
Overspeed Protection Electronic torque control
Survival Wind Speed 40.2 m/s (90 mph)
Mount 1.5 in schedule 40 pipe 48 mm (1.9 in) outer diameter


AIR Power curve




Spec Sheet

For other Air Max Products Visit the Micro Wind Turbines Page