BWEA Summary Report XZERES 442 product icons

XZERES 442SR Small Wind Turbine

Wind Turbine's Life Expectancy Wind Turbine Warranty

The XZERES 442SR small wind turbine has the most efficient rotor design tested by a third party in the small wind industry today. Its performance has been tested and validated by the National Renewable Energy Laboratory and can produce up to 40% more energy than its competitors of the same rating in some wind resources.

The XZERES 442SR wind turbine is designed to generate low cost renewable energy through efficiency, reliability, and longevity. Its simple design of few moving parts reduces services and maintenance costs, as well as allows for easy installation.

This small wind generator gets its name from its large swept area of 442 sq ft. Name plate capacity of a wind turbine tells one very little of its efficiency or energy production potential, whereas swept area is directly related to energy production. By focusing on performance and reliability, our wind energy systems produce the lowest lifetime cost of energy, which yields the best return on your investment.

On Grid Wind Energy Systems

direct The XZERES 442SR on grid wind energy system is designed to plug directly into the electrical power grid. It Includes wind turbine, turbine controller, two (2) SMA -SB- 6000 (6kW) inverters, diversion load, service disconnect switch and lightning/surge protection.

Off Grid Wind Energy Systems

battery connectDesigned for serious off grid living as well as business applications. The system includes wind turbine, battery charge controller, diversion load, service disconnect switch and lightning/surge protection.

Marine Wind Turbines

MarineThe XZERES 442SR-M Wind Turbine features corrosion protection for marine coastal applications. Surface finishes, fasteners, and electrical enclosures are compliant with industry standards for marine, estuary, and coastal environments with high salinity, but are not intended for direct spray or submersion.

Turbine Diagnostics


Wind turbine health is important for sustained uninterrupted energy production. The XZERES wind turbine Controller has an on-board diagnostics system which records performance metrics and is web enabled and Wi-Fi accessible from a home computer or handheld device.

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  • MCS
  • SWCC Summary Report XZERES 442SR

Model XZERES 442SR

  • Cut-In Speed: 5.5 mph (2.5 m/s)
  • Max Power: 12.2 kW
  • Rated Power: 10.4 kW @ 25 mph (11m/s)
  • Rotor Diameter: 23.6 ft (7.2 m)
  • Swept Area: 442 ft² (41 m²)
  • Blades: 3-Blade, Upwind
  • Body: Ductile Iron Casting and Steel
  • Alternator: 3-Phase, Neodymium Permanent Magnet
  • IEC 61400-2 Small Turbine Class: Class 2
  • Tower-Top Weight: 2300 lbs (1045 kg)
  • Output Interface:
    • Single Phase
      • 208, 240, 277 VAC 60 Hz
        (US Grid Support)
      • 220-240 VAC 50/60 Hz
        (Worldwide Grid Support)
    • Three Phase
      • 208Y120, 240 Δ
        480Y277 VAC, 60 Hz
        (US Grid Support)
      • 400Y240 VAC, 50 Hz
        (Worldwide Grid Support)
  • Warranty: Standard, 10-Year Limited Warranty Available
Cost of Energy

XZERES Performance data independently verified in the Wind Turbine Generator System Power Performance Test Report for the XZERES 442SR Wind Turbine, February 2010 by the National Renewable Energy Lab. Wind energy systems include the turbine, tower, inverter and controller. Total cost includes annual maintenance costs of 0.5% per year of total system cost for products with 10-year warranty, 1.0% per year for products with 5-year warranty. This model assumes a 30% federal tax credit and a 25% state rebate. This analysis assumes energy usage equals energy output.


  • The XZERES 442 was one of the most efficient rotor designs tested by a third party in the small wind industry. Today the 442SR has seen performance increases up to 23%.
  • Produces up to 40% more energy than its competitors of the same rating in some wind resources
  • High performance across a wide variety of conditions and capture maximum low wind speed environment
  • State of the art components with superior reliability
  • Robustness turbine design with 20+ year life expectancy
  • Simple design limits moving parts to reduce service and maintenance costs, as well as allow for easy installation