The noise made by wind turbines is the equivalent of background noise in a conference room, an engineer testified Monday night at a meeting before the McLean County Zoning Board of Appeals. Timothy Casey of HDR Engineering, Minneapolis, Minn., continued testimony began at the last meeting on his company’s noise analysis of the proposed wind turbines. His analysis was based on a wind speed of 22 mph — the wind might blow more, but the turbines are adjusted so they don’t spin faster if the wind speed is higher. He said because of a redesign of the configuration of the blades, they are quieter and don’t “thump” like older models do. Earlier, it was reported that the county requires 1,500-foot setbacks to distance turbines from homeowners. About 100 people attended one in a continuing series of four-hour meetings that continue this month. Invenergy Wind LLC of Chicago has proposed that 100 wind turbines be located on 12,200 acres in McLean and Woodford Counties. The White Oak Energy Center would be located west of Interstate 39 and north and east of Interstate 74. A total of 83 acres of farmland would ne taken out of production in the project, Invenergy has said.
Noise
General
Zoning/Planning
Illinois