The application for the turbine, hard stand and substation was made by Natural Forces Renewable Energy Ltd on April 30th of last year and was strongly opposed by local residents in the area.
The Council said the company’s impact statement had not sufficiently addressed the impact of the proposed development on the Golden Plover and Whooper Swan.
It also said that due to the absence of a full hydrological assessment, it had not been demonstrated that the proposed development “would not adversely impact ground waters in an area of extreme vulnerability”.
A number of submissions were made claiming the turbine would affect local homeowners, areas of conservation and disrupt local wildlife.
Planners at the local authority ruled against the development earlier this week.
Reacting to the news, members of the Kilcash Wind Turbine Action Group posted the following statement on the group’s Facebook page: “We are delighted to share the news that Roscommon County Council has refused the planning application for the wind turbine in Kilcash. We are awaiting the full details of this decision. In the meantime, we would like to thank everyone for their continuing support”.