Wind Energy

This wind energy field in Panama, and others like it around the world,  are emerging as one of the most efficient sources of green energy, as the turbines can be installed along windy ridges, in valleys, and even out at sea and are turned only by the power of the wind. The movement of the turbines in turn powers electric generators which provide zero-emission, low cost energy to homes and businesses near by.  

Source: jaime.hernandez55 (Flickr user)