Well, bladeless low-speed generator's been around for some years already. It's directly driven, i.e. no multiplier too http://d.intellect-labs.com/our-projects

Well, bladeless low-speed generator's been around for some years already. It's directly driven, i.e. no multiplier too http://d.intellect-labs.com/our-projects/88-slow-generator.html http://d.intellect-labs.com/our-projects/88-slow-generator.h...