Rated Power(W) 20000 Rated Voltage(V) AC360 Rotor Diameter(m) 10 Start up wind speed(m/s) 2.5 Rated wind speed(m/s) 12 Security wind speed(m/s) 40 Rated rotate speed(r/min) 90 Yawing method Automatic Control Braking method Dynamic braking Motor Shell Material steel Blade material FRP Main machine weight (kg) 960 Free Standing Tower Tower weight(m) 18 Tower Weight (kg) 3050 Wall thickness (mm) 8 Suggested battery capacity 12V400AH 30PCS Matched inverter type Off-Grid/ On-Grid Sine Wave