Savonius VAWT 2 stage oil drum wind turbine.
E3K - Vertical Axis Wind Turbine EOLO 3000 Darrieus Savonius 3Kw
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E2K - Vertical axis Wind Turbine Generator 2KW hybrid Darrieus Savonius EOLO 2000 -The most advanced system in the entire series for power, configuration and technical solutions. | eBay!
Eng. Shady Mohsen blog: Methods of obtaining uniform (smooth) torque in Savonius wind turbine
Vertical Axis Wind Turbines: Great In 1890, Also-rans In 2014 | CleanTechnica
Build-it-yourself wind powered generator guidelines.
Alternative Energy DIY, from cardboard wind turbines to portable solar chargers made with altoid tins. http://calgary.isgreen.ca/living/crafts/making-music/
Savonius Wind Turbine - Google Search