... hybrid power system according to the principle of maglev wind turbine, beautiful and safe , no pull wires, no transformer power supply. ... efficiency Efficiency is not affected Power stability Change by wind directionWithout any wind effectNoiseLarge(45 decibels or more)Low noisy,less than ... in utilizationpoorhighWeight About 20 KGAbout 38 KGMake cost LowHigh Maglev wind turbine generator