Detailed Product Description deep cycle battery based wind turbine generator 20kw 1, higher efficiency above 0.85. 2, lower start up wind speed 3m/s. deep cycle battery based wind turbine generator 20kw rated power 20000W max power 30000W charging voltage 240V blade quantity 3 PCS blade material GRP blade diameter 9.0m start up wind speed 3m/s rated wind speed 11.5m/s rated rotating speed 180rpm wind energy utilizing ratio(Cp) 0.4 generator output single phase frequency conversion AC output frequency 0-360Hz reated charging current 83.3A max charging current(in a short time) 120A generator efficiency 0.85 above tower specification hydraulic tower or freestanding tower tower height 16M net weight of generator 496kgs suggested battery size 800AH/1000AH
