I think there would be strict siting requirements, to prevent them from interfering with any communications or from becoming a hazardous obstacle that could interfere with air navigation
Generally there are strict codes in place for siting large industrial structures...as far as wind energy being a very useful supplement...but that's a whole other discussion...they do however make very interesting devices to study with respect to aerodynamics and electrical generators...to be truly ueseful there would need to be a way of storing the energy, batteries capacitors then there would be loss in the conversions AC-DC-AC...
As far as your Dissertation the best place to start would be in the engineering codes for such structures...
