The Potomac Appalachian Transmission Highline (PATH) is a proposed $1.8 billion 200-plus mile long 765 kV extra high voltage electric transmission line linking the Amos substation (located adjacent to the nearly forty year old 2,933 MW coal-fired John E. Amos Power Plant located in western West Virginia) with a new substation proposed to be built in Frederick County, Maryland. PATH has been recommended by PJM Interconnection, the regional transmission organization. PJM is a consortium of power companies, transmission companies and other interested utilities. PATH is a joint project of AEP and Allegheny Power.