4kW 2nd Generation Vertical Axis Wind Turbine

$21,585 complete system (grid tie)

Product Brochure (pdf)

Physical
Mill Dimensions 6.0 m x 6.2 m (236” x 244”)
Tower height 11 m (36’)
Gross Weight 3,000 kg (With Tower)
System Information
System Output 110 VDC (off-grid), 280-580 VDC (grid-tie)
Grid Tie Yes
Brake System Electronic over speed protection and secondary manual brake
Blades
Blade Composition Fiberglass
Shipping
Dimensions Pillar Diameter: 45cm, Height 5.5m/11m, flange size=100x16cm (no packing)
Foundation Hardware: 1040x1040x30cm box
Generator: 90x90x50cm box
Aerofoil Supporting Structure: 400x32x32cm box
Blades: 625x98x12cm x 5 (paper &box)
Controller/Inverter: (60x50x40) x2 box
Other parts: 340x92x20cm box
Performance
Cut-in wind speed 4 m/s (9 mph)
Cut-out wind speed 25 m/s (56 mph)
Rated wind speed 12 m/s (27 mph)
Max (survival) wind speed 55 m/s (123 mph)
Noise within 3 meters @ <7 m/s < 27 DB
Noise within 3 meters @ 7-10 m/s < 32 DB
Noise within 3 meters @ 10-13 m/s < 37 DB
Generator
Type Permanent Magnet DC Generator
Temperature Range -40°C to 115°C
Drive System Direct Drive