PJM Interconnection

PJM Interconnection LLC
IndustryRegional transmission organization
Founded1927; 97 years ago (1927)
Headquarters
Valley Forge, Pennsylvania, U.S.[1]
Area served
Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and the District of Columbia, U.S.[2]
Key people
Manu Asthana (President, CEO)[3]
Members1,111[2]
Websitewww.pjm.com
ISOs and RTOs of North America as of 2024
PJM coal and natural gas electricity generation, 2013–2017
During 2013–2017 the PJM Interconnection increased the use of natural gas combined cycle plants while reducing the use of coal-fired plants

PJM Interconnection LLC (PJM) is a regional transmission organization (RTO) in the United States. It is part of the Eastern Interconnection grid operating an electric transmission system serving all or parts of Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, and the District of Columbia.

PJM, headquartered in Valley Forge, Pennsylvania, was the world's largest competitive wholesale electricity market until the development of the European Integrated Energy Market in the 2000s.[4] More than 1,000 companies are members of PJM, which serves 65 million people and has 185 gigawatts of generating capacity. With 1,436 electric power generators and 85,103 miles of transmission lines, PJM delivered 783 terawatt-hours of electricity in 2021.[5]

Started in 1927, the pool was renamed the Pennsylvania-New Jersey-Maryland Interconnection (PJM) in 1956. The organization continues to integrate additional utility transmission systems into its operations.

The Federal Energy Regulatory Commission (FERC) regulates PJM[6] and approves its open access transmission tariff for the wholesale electricity market.

  1. ^ "Visiting PJM". PJM Interconnection LLC. Retrieved August 28, 2023.
  2. ^ a b "Meaningful Momentum: PJM 2022 Financial Report". PJM Interconnections LLC. December 31, 2022.
  3. ^ "Executive Team". PJM Interconnection LLC. Retrieved August 28, 2023.
  4. ^ "PJM Annual Financial Report" (pdf).
  5. ^ "PJM 2021 Annual Report". Retrieved 31 December 2022.
  6. ^ "Illinois governor wants clean energy legislation, could push state out of PJM power grid". Reuters. January 30, 2020. Retrieved 9 June 2021.