GC China Turbine Corp. (GCHT)

[Argyll]

Two bladed wind farm (pictures!):

http://windenergy.org.nz/nz-wind-farms/operating-wind-farms/te-rere-hau

This the only two-bladed turbine wind farm of which I am aware. It uses local New Zealand produced 500 kw machines.

They are not as large nor as efficient as most industrial power three bladers, but the cost has to be much lower than bigger three-blade wind turbines, such as those imported from Denmark. There's an obvious huge difference just in transportation costs.