Video by Gerry Myer, town of Byron, Wisconsin. Residents inside this industrial wind farm in Fond du Lac County, Wisconsin were told ice throw from turbine blades would not be a problem because the turbines automatically shut down when ice and snow build up on the blades. The turbines are 400 feet tall, with a blade span wider than a 747. They appear to be turning slowly because they are so large, but the tip speed on the blades ranges from 90 to 180 miles an hour. Even a small piece of ice thrown at that speed presents a hazard. Wind developers downplayed the problem during the permitting process for this wind farm, saying ice throw is not anything to worry about. The Public Service Commission of Wisconsin took their word for it. These turbines went on line in March of 2008.
Library filed under Icing from Wisconsin
Residents inside this industrial wind farm in Fond du Lac County, Wisconsin were told that ice throw from turbine blades isn't a problem. They were told that if ice forms on the blades, the turbine automatically shuts down. After seeing a piece of ice the size of a bed sheet come flying down from this wind turbine, the resident who shot this video decided to get out his video camera.
Catharine Lawton's letter to the attorney representing Addison Wind Energy on the developer's failure to represent accurately a number of the dangers associated with icing of the blades of industrial wind turbines.