... 3.35% wind energy utilization 4. low start speed vertical wind turbine :)Feature of wind turbine1. 2 year quality ... ., ltd,manufacturer of wind turbine in ChinaWe mainly produce vertical axis and horizontal axis wind turbine including 300w, 600w , 1kw, 2kw, ... 3kw,5kw,10kw. The technique of other models is under developing. 5kw vertical ...