20 kilowatt vertical axis wind turbine 4 rotor blade
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20 kilowatt Vertical Axis Wind Turbine

General Specifications – General Turbine Design Features


A 20kW wind turbine produces enough energy to power several US homes. These are residential turbines but are also used as community-sized wind turbine that produces the right amount of power for residential development, farms, and small businesses. Predominantly, however, 20kW units are often used in agricultural and light industrial applications. It has also been used for years in remote village applications, where diesel power systems supply electricity for a small grid.

Specification

Chart

Parameter Value Unit of Measurement
Power Output
20.0 kW
Rotor Diameter 10 (32.8) m (ft)
Rated Wind Speed 10 (22.37) m/s (mph)
Cut-In Speed 2.7 (6.0) m/s (mph)
Cut-Out Speed 59 (132) m/s (mph)
Survival Speed 59 (132) m/s (mph)
Operational RPM 300 rpm
Weight 1725 (3,803) Kg (lb)
Std. Operating Temp. -25 to 50 (-13 to122) °C (°F)

Configuration Description
Type Helical vertical axis
Design Class IEC Class II (air density 1.225 kg/m3, average annual wind below 8.5m/s, 50-yr peak gust below 59.5m/s)
Design Life 20 Years
Drive Train Description
Generator Type Permanent Magnet (PM)
Type Direct Drive
Speed Regulation Description
Generator Torque Control from Drive (VFD)




Control/Electrical Description
Mounting Off Nacelle / Mounted, wired, tested and programmed in NEMA rated 3R enclosure
Compliant UL 1741, IEEE 1547
Power Converter VFD (Variable Frequency Drives)
Braking Systems Description
Emergency Back Up Speed Regulation Regenative Brake
Loss of Grid Power / DC Bus Overvoltage Dynamic Resistive Brake
Emergency Shutdown / Parking Redundant Magnetic failsafe Brake
Tower Description
Mono Pole / Tubular no guy wires free standing
Environmental Standards Description
Temperature Range -25°C to 50°C (-13°F to 122°F) – Standard

20 kw output
20 kw power output chart