 don't want it and knows they do. So that's kind of where we're at. Aiken says some of the changes include a turbine cap in the county of 225 turbines with 121 already in the country, requiring aircraft detection lighting systems and all new projects, limiting shadow flicker on non-participating properties to 30 hours a year, and setting a maximum sound level of 55 decibels. He adds they also plan to increase setbacks from non-participating dwellings and property lines.