PJM Interconnection coordinates the movement of electricity through all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia.
Map of PJM territory served (6 MB PDF)
PJM contour map
PJM is now offering high resolution transmission maps that have been developed by PJM's System Planning GIS for both PJM members and non-members. The maps include PJM's transmission infrastructure from 69 kV up to 765 kV.