Buffalo County authorities have approved erection of wind turbines in industrial zones.
The Board of Supervisors on Tuesday approved a zoning amendment that will require special-use permits before the turbines may be built.
The amendment was spurred by a business owner who wanted to put up a turbine to power his facility.
Tim Williams with Buffalo Air Services told the board that safety was a concern for him as a pilot, so he asked supervisors to mandate special markings for the turbine towers.
The turbine planned by Denny Jorgensen will have a red light on the top. Before approving his permit, the board recommended he use a stripe pattern with alternating colors on the base tower to improve its visibility.