Model:FD7.0-10000W Rotor diameter:7.0m Blades quantity: 3pcs Direction: always downwind Blades material: Glass fiber reinforced plastic Rated output: 10kW Maximum output: 13kW working voltage: DC240/500V,AC220V/380V Initial wind speed: 3m/s working wind speed: 4-30m/s Nominal wind speed: 10m/s(22.5mph) Storm-stand: up to 55m/s Rated rotate speed:180r/min Wind turbine type: Three-phase, Permanent Magnet (on constant magnets) Working temperature: from -40 to +60 C Stop method: Manual+ Automatic+ Hydraulic Pressure Battery voltage(V)/capacity(AH):12*40-480/400 Speed regulation method: Yawing and electric magnet dumping Accumulators full charge time: about 8 hours Mast height/weight: 10m/12m/15m/18m - optional /1000kg Weight: 800kgs (without mast).