Mt. Storm to Doubs Rebuild Project

The Mt. Storm to Doubs Rebuild Project is a 99-mile, 500-kV transmission line that originates at the Mt. Storm power station in Grand County, W. Va., and terminates at the Doubs substation in Fredrick County, Md. The Mt. Storm-Doubs line spans West Virginia, Virginia and Maryland, and will increase line capacity by 66%. Dominion’s portion of the project is 96.4 miles of the line. Its portion begins at the Mt. Storm power station in Grant County, W.Va., travels through West Virginia into portions of Virginia, and ends at the Virginia-Maryland state line. Potomac Edison, a FirstEnergy (NYSE:FE) subsidiary, owns a 2.8 mile segment of the line. Its portion runs from the Virginia-Maryland state line to the Doubs substation in Frederick County. The project was completed summer 2015.

Project Sponsor Line Miles Voltage (kV) From State To State Year in Service
Dominion Energy 99 500 WV MD 2015
Estimated Costs ($M) Voltage Type Project Status Project Group Origin Point Destination Point
370 Operating Mount Storm Combustion Doubs
Interstate Build Start NERC ISO/RTO Country Project Partners
2011 RFC PJM US Dominion (96%+), Potomac Edison