Company facts
- Founded
- 1927
- Employees
- 1,100
- Headquarters
- United States
- Type
- Non-Profit
- Subsidiaries
- PJM Technologies
About
PJM Interconnection operates the largest high-voltage electric transmission grid in North America, delivering power to 67 million people across 13 states and the District of Columbia. As a neutral, independent operator, it administers a competitive wholesale electricity market and conducts long-term regional planning to identify cost-efficient grid improvements that enhance reliability and economic value. Its governance model—an independent board and collaborative stakeholder process—supports a vision of leadership in reliable operations and efficient markets. PJM’s focus on cross-border coordination, market integrity, and forward-looking grid investment distinguishes it as a cornerstone of the U.S. power sector.