Rotor diameter: 12.56m Blades quantity: 3pcs Direction: always downwind Blades material: Carbon fiber reinforced plastic Rated output: 30KW Power supplied to Grid 32KW [in 5seconds] working voltage: DC500/600V,AC220V/380V Annual average energy production: 70MWH (in rate 5m/s wind speed) working wind speed: 3-35m/s Initial wind speed: 2.5m/s Nominal wind speed: 12.0m/s Storm-stand: up to 55m/s Max rotate speed: 100r/min Wind turbine type: Three-phase, PMG Alternator Working temperature: from -40 to +60 C Blade Pitch Control Variable Pitch Over-speed Protection Aerodynamic brake + Electromechanical disc brake Speed Regulate and Shut Down Methods Electro-Yawing,Positive Pitch and Electric Magnet Switch. Gearbox: None, Direct Drive Tower style and height Free-standing tower 15m, 18m up to 35m.