This map shows PJM's territory. It serves 61 million people.
The PJM Interconnection is the regional transmission organization serving Pennsylvania’s electric market.
Its main function is to act as a neutral party for the movement of wholesale electricity– essentially to “keep the lights on” and ensure a reliable grid.
About 21 percent of the nation’s gross domestic product (GDP) is produced within PJM’s territory.
It serves 61 million people and covers all or part of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia and the District of Columbia.
PJM’s authority does not extend into retail electric markets. In Pennsylvania, that’s the role of the state’s Public Utility Commission.
To achieve a carbon-free electricity sector, the country would need to more than double the power infrastructure it has now in the next decade.
The power grid operator’s board has received appeals from around the country to ensure its next leader prioritizes clean energy
The organization is trying to walk a fine line between respecting states’ rights while figuring out how to incorporate diverse climate polices into its wholesale electricity market.
The nation’s largest electric grid studied whether its reliance on natural gas could threaten the system. The answer: Not now, but a perfect storm of events could cause problems.
