Vertical axis wind turbine technology continues to improve
WEBAug 7, 2017 · One designer has produced a small vertical wind turbine that sold over 4,000 units in around 60 countries since 2007, and used patents to set up technical barriers. How to design a good small verticalaxis wind turbine. Although different from a HAWT, the core technology of a VAWT remains a wind mill structure with blades.