... vertical axis wind turbines : 1, Security 2,Noise 3,Wind resistance 4,Power curves The advantages of vertical axis wind turbines : 1, Security 2,Noise 3,Wind ... resistance 4,Power curvesParameterRated power300WMax power450WOutput voltage24v/220vRated wind ... materialFRPSwept area3.6m2 Start-up wind speed2m/s Work wind speed2-24m/sRotation speed150r/ ...