Detailed Product Description residential wind turbine generator 1kw battery based 1.higher generating efficiency above 0.8 2.lower start up wind speed 3m/s residential wind turbine generator 1kw battery based rated power 1000w max power 2000w charging voltage DC 60V blade quantity 3 PCS blade material GRP blade diameter 3.1m start up wind speed 3m/s rated wind speed 9m/s rated rotating speed 500rpm wind energy utilizing ratio(Cp) 0.45 generator output single phase conversion AC output frequency 50HZ reated charging current 15A max charging current(in a short time) 30A generator efficiency 0.8 above tower specification 2000X4segments tower height 8m net weight of generator 15kgs suggested battery size 120AH/150AH