Parameters Rated power£¨W£© 20,000 Rated voltage£¨V£© 360 Rated voltage£¨m£© 11 Cut-in wind speed£¨m/s£© 3 Rated wind speed£¨m/s£© 12 Rotation speed£¨rpm£© 90 Number of blades 3 Yaw system Automatic Guy tower height£¨m£© 18 Tower standard 325*9mm Inverter and controller Single phase sine wave Recommended battery type 12V400AH*30 Annual power generation£¨KWH£© 48,000