Note: I get a lot of questions about this turbine. There is a series of videos that show exactly how to build this turbine, parts lists and dimensions included. Watch here: https://www.youtube.com/playlist?list=PL56D0C1589EB4470F
I have included an entire video series at this channel showing exactly how I built this vertical wind turbine, all dimensions are included in the comments for each step. I've seen others attempt this design but completely miss that this is a WING LIFT type turbine. The fin angle, surface and material is all critical to making this work correctly. Using a drag configuration (as I've seen) will not work very well. This design just works so I would start by viewing the videos here at my channel first, this is not a difficult project. Best wishes for you and your build.
This intellectual property and design belongs to myself, but is released to the public in the creative commons license or equivalent extending the use of this design for private or commercial use, just do not hinder anyone else from using and improving on the design and attribution to the imikewillrockyou youtube channel is greatly appreciated. Thank you,
creativecommons.org/licenses/by-sa/3.0/ meaning you can use it.