Bahari Energy has conducted a 1/8 scale Wind Tower prototype testing and result has demonstrated a significant increase in wind speed which in turn increases electricity output. The test data and results could be available upon request.
Goudarzi N, Zhu WD, Bahari H. Wind Energy Conversion: The Potential of a Novel Ducted Turbine for Residential and Commercial Applications. ASME. ASME International Mechanical Engineering Congress and Exposition, Volume 4B: Dynamics, Vibration and Control:V04BT04A042. doi:10.1115/IMECE2013-63006.
Goudarzi, W. D. Zhu and H. Bahari; Wind Energy Conversion: The Potential of a Novel Ducted Turbine, for Residential and Commercial Applications.