Specialty:Noise / Vibration
Location:Energy / Power
Type:Permitting / Compliance
Location:Winona County, MN
Juhl Wind: Gunderson Lutheran Wind Farm
Noise and Shadow Flicker Study
Juhl Wind, Inc. has developed the 5-MW Gunderson Lutheran Wind Project in Winona County, Minnesota consisting of two Clipper C96 – 2.5 MW turbines.
Tech Environmental, Inc. (Tech) was retained by Juhl Wind to conduct a sound study and a shadow flicker analysis on the proposed Gunderson Lutheran Wind Project. Tech conducted acoustic modeling with Cadna-A that confirmed that the sound generated by the wind turbines complies with the nighttime Minnesota noise standards and does not produce a pure tone. Finally, Tech’s investigation found that the shadow flicker effect from the turbines is less than the industry standard of 30 hours per year.
- Juhl Wind Inc. needed to know whether the proposed wind farm would comply with Minnesota Noise Standards, as well as industry standards for shadow flicker.
- Tech conducted a thorough sound study and a shadow flicker analysis which demonstrated that the proposed wind farm complies with Minnesota Noise Standards as well as industry shadow flicker standards.