VINALHAVEN — The Maine Department of Environmental Protection is asking the company that operates three wind turbines on Vinalhaven Island to modify its operations because the turbines are too loud.

The state says the turbines run by Fox Islands Wind have exceeded nighttime noise limits.

In a letter sent Tuesday, the state found that the wind farm was producing noise levels of 47 decibels when it wasn’t supposed to exceed 45 decibels.

The letter says the sound is likely to exceed the level when there is “significant vertical and directional wind shear.”

Fox Islands Wind CEO George Baker tells the Bangor Daily News a consultant hired by the company doesn’t agree with the state’s conclusions.