Who makes wind turbines anyway? All shapes and sizes!
Found this enthusiasts website - great details on prices, types, equipment and more. New, used, refurbished, large and small. The one on the gantry type tower is interesting. This type is mentioned in the Swedish research as a possible better type to avoid bat strikes.
Anyway - the site gives lots of ideas for wind power for schools, homes and more.
They also have a great resource document on calculating power performance and types of sails.
I would like to see more on designs and specifications however - to include noise emissions, types of bearings, electromagnetic flux emissions, etc.
And if you want to build your own wind turbine - then this site from Peru has instructions in English and Spanish: