When most people think of a wind turbine, they think of horizontal axis turbines. Vertical axis wind turbines are different in many ways. They do not have to have a swivel in order to catch the wind. The turbines can produce electricity with less wind than horizontal axis generators. Problems There are also problems with wind turbines.
Birds fly in the blades and they are slaughtered.
Patterns have been put on the blades to make them more visible. Sound is another problem. Wind turbines produce a lot of noise. Most of the wind farms are out in the desert and this has helped a lot with that problem. They also interfere with television and radio reception.