Here is an impressive collection of wind turbines that are out of ordinary. Im sure you didn’t know some of them even existed. Some are more efficient than others and some work better in different environments like on top of buildings or on the ground. Depending where you are, winds are different. On top of buildings for example winds come from all directions at the same time. VIDEO->
Aeroturbine
Helix Wind Turbine
Quietrevolution QR5
SideWinder
Disk Wind Turbine
Wind Belt
very interesting ideas – i will be happy to see how they develop
now to build a wind belt – (as it appears to be the cheapest and easiest to scale)