The PJM Interconnection is one of several Regional Transmission Organizations (RTOs) that coordinate the movement of wholesale electricity in the United States. PJM covers at least parts of 13 states—Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia—and the District of Columbia.
When a solar/wind developer wants to move into your neighborhood, it needs to get into the PJM queue. The queue is backlogged so much that PJM has proposed a two-year pause on new interconnection applications. "In the meantime, PJM will prioritize backlogged projects, remove projects that are more speculative from the queue and hold off on adding any new projects to its queue."