As wind turbine blades pass through the air, they make a sound that is often described as a “whoosh.” Measurements of this sound show that it is no louder than a kitchen refrigerator or a standard air conditioning unit at a distance of 1,000 feet. Often the sound of a wind turbine on a windy day is indistinguishable from the sounds of the wind rustling through the trees and grass at these distances.

(See https://www.nidcd.nih.gov/health/listen-infographic)

The project will comply with Apex’s internal guidelines on sound as well as local township wind ordinance requirements related to sound limitations at residences.