Turbine pictures.
This is mounted on my roof, which is a 3 storey building. One side has nothing in the way, as it is towards the river. In winter, when the solar output is low, the wind comes in from the river at anything from 15 mph to 75 mph. Spring winds are fairly constant at 25 mph. The rest of the time the solar makes way more per day, but then that's the beauty of a hybrid system. It is all supported on 2" scaffold tube with heavy duty rubber naval engine mounts, which make a huge improvement to the generator cogging noise that would normally be transmitted through the structure.