I certainly am not an engineer, but I certainly find this new design for a wind turbine that I came across interesting.  Also interesting that we have not seen a similar type of design before like this before.  For me I like this new design in an artistic sense and not from an engineering angle.

Via The Most Powerful Wind Turbine Looks Like the Weirdest Too and Dezeen » Blog Archive » Aerogenerator X by Grimshaw and Arup.