PJM Interconnection

Interdependence is a given at PJM Interconnection, which oversees a 64,000-mile section of the North American power transmission grid that spans across 13 northeastern and midwestern states and the District of Columbia. The regional transmission organization monitors and coordinates the movement of wholesale electricity in its service territory; its almost 670 members have a combined generating capacity of more than 178,000 MW. Sanctioned by the Federal Energy Regulatory Commission, PJM is charged with ensuring fair competition among power purchasers, sellers, and traders; it also is responsible for the reliable delivery of distributed electricity to more than 54 million consumers in its territory.