I did a search on the database and couldn't find it, because I was sure I've seen it before but probably not here. It's an interesting concept that could make wind turbines more acceptable near populated areas. http://sheerwind.com/ It reminded me a little bit of the study of Ibis Power: http://www.ibispower.eu/
With those stone towers it looks like something out of the Middle Ages. "Two riders were approaching, and the wind began to howl..."
^^ My thoughts too. If they could make this smaller and viable to place on a pole in the backyard or on a rooftop (like solar panels) I would be much more inclined to give it some thought.