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Primus Air 40

Primus air

Product Description:

The all-new Air 40. Quieter, more efficient, and precision engineered to deliver more energy at lower wind speeds than any other wind generator in its class. Air Breeze is the next generation of Air turbines with more than 100,000 units sold in 120 countries, 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, “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.


Wind‑powered generators that produce electricity, often used in hybrid solar‑wind systems.

System highlights:

  • Reliability: 5-year warranty with over 150,000 units installed globally since 1995
  • Up Tower Controller: Integrated controls inside the turbine regulate battery voltage
  • Ease of Installation: Air is wired directly to battery bank, independent of PV controller and wiring
  • Certifications: CSA approved to UL and CSA specifications (Air 30 and Air 40)
  • Quiet Operation: Air 40 and Air Breeze blades are specifically designed for low sound emissions

Product Specifications:

Have questions?

    • RES works with residential, commercial, and remote applications and can evaluate storage, generator integration, electrical infrastructure, controls, and ongoing support as one system.

    • Alaska temperatures affect battery performance and charging, so siting, enclosures, and heating are part of the design.

    • Batteries carry loads instantly and silently, while a generator extends runtime when the outage outlasts stored energy.

    • Runtime depends on the critical-load profile, battery capacity, and whether a generator or solar recharges the system. RES designs to a runtime target agreed with the facility.

    • RES starts with an energy audit and load calculations to separate critical loads (refrigeration, servers, medical or process equipment, life-safety lighting) from loads that can wait. The critical-load list drives battery capacity, generator size, and the electrical integration design.

    • Contact RES with your project location, facility type, current energy sources, approximate energy requirements, and operational goals.

    • Yes. RES provides operations and maintenance services, including monitoring, preventative maintenance, battery testing, troubleshooting, repairs, and system upgrades.

    • Renewable energy may help reduce electricity purchases, fuel consumption, or exposure to changing energy costs. Actual financial benefits depend on system design, energy demand, utility rates, fuel costs, project location, and installation expenses.

    • Yes. RES serves customers across Alaska, including rural and remote locations.

    • Yes. RES designs hybrid power systems that can combine renewable generation, battery storage, generators, and existing electrical infrastructure.