Town officials in Windham are asking developers of a commercial wind project to suspend their work in the region.
The Windham Select Board this week voted 2-1 to send a letter to Iberdrola Renewables saying the board opposed the project.
The board's message went out a few days after the Spanish energy company sent its own letter to Windham and Grafton, asking that the two towns open formal negotiations.
Iberdrola wants to build 20, 500-foot turbines in Windham, and another eight turbines in Grafton.
If the company builds the 96-megawatt project it would be the largest commercial wind project in the state.
In Windham's letter to Iberdrola, two select board members, and a member of the planning commission, said the turbines would threaten the area with increased flooding and erosion and impact wildlife and water quality.
The town officials also said the most egregious aspect of the wind turbines would be their impact on the human population.
According to the letter more than 200 Windham homes lie within 1.5 miles of at least one turbine.
"We are unwilling to subject any of our town's property owners to the unknown short- and long-term effects of exposure to turbine noise, vibration, infrasound, and shadow flicker," they wrote.
Both towns are being asked to hold a public vote on the project, and Iberdrola has said it will honor the outcome of the votes.