From the article:-
This generator is mainly like conventional ones, but the difference is individual coils can be turned on and off thanks to electronic switches. This is useful at low wind speeds, where only a few coils need to be active to gather the small amount of energy.
Instead of using large-diameter generators, which make the rotor move harder, the ExRo generator uses more small-diameter generators, which makes the harvesting more effective. The number of small-diameter wind generators varies on location and wind speed.
No link, no reference to a dead tree rag equals bull$#|+.
