PJM Interconnection

Regional transmission organization managing wholesale electricity markets and grid reliability in the United States.

Added by Maílis Carrilho on February 11th, 2026

Summary

PJM Interconnection is a U.S. regional transmission organization (RTO) that coordinates the movement of wholesale electricity and ensures grid reliability across a large portion of the eastern United States. It operates competitive wholesale electricity markets, manages high-voltage transmission planning, and balances supply and demand in real time to support reliability, efficiency, and market transparency.