Electromagnetic Dump Load Braking Vertical Shaft Wind Turbine with Magnesium Aluminum Alloy Blades Product Overview The GREEF GVH Series Vertical Axis Wind Turbine (VAWT) represents cutting-edge H-type wind energy technology engineered to deliver outstanding performance across various settings, including urban, suburban, and remote areas. Utilizing state-of-the-art axial flux coreless disc permanent magnet generator technology, this turbine ensures high efficiency and