Public Utilities & Environment All Categories... Energy go Results Found: 5 Button group with nested dropdown Prime Solar Ballymacool Letterkenny Letterkenny Letterkenny f92r22a 0833746607 Efficient Renewables Ltd Unit 2 Main Street Newtowncunningham Donegal F93E4W8 087 3820000 Donegal Oil Co. Port Road Letterkenny Co.Donegal F92 HN44 (074) 912-1633 Donegal Gas Letterkenny Co. Donegal F92 EK7Y ElectroRoute Market Access Ltd 170 Colab Port Road, Letterkenny Letterkenny Co Donegal F92 PHF4 016875700