Some southern Minnesota residents concerned about the effects of wind turbines will speak today at a public hearing in Goodhue over a proposed wind farm in Goodhue County.

The group Goodhue Wind Truth is bringing in an expert to discuss the dangers of high-frequency sound, which they say is emitted by the turning turbines.

The expert, Rick James, believes the proposed setback for wind turbines of 1,500 feet from homes and businesses is inadequate and that current tests underestimate the potential noise damage.

Supporters say the community-based wind project will provide renewable energy, along with new jobs, tax revenues and other indirect economic benefits.

The Minnesota Public Utilities Commission hearing on the Goodhue Wind Project is today at the Goodhue High School gym in two sessions: 3 to 5:30 p.m. and 7 to 10:30 p.m.

Administrative Law Judge Eric Lipman will take comments and forward a summary to the utilities commission.

On Monday, tempers flared at  a county planning advisory meeting on the wind farm issue, the Rochester Post-Bulletin reported. At the six-hour meeting, commissioners heard about setbacks, shadow flicker, liability and stray voltage.