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Working Together to Build for Tomorrow

We pursue projects and partnerships of all sizes throughout North America. By working toward a common cause, we can overcome many hurdles.

The U.S. transmission system is in the midst of its biggest building boom since the 1970s. This effort is driven by the need to increase reliability, replace aging infrastructure, improve security, relieve congestion and accommodate renewable power sources and generation retirements.

Building new transmission infrastructure will ensure a reliable power supply for future economic growth. We routinely collaborate with partners to efficiently and safely construct transmission projects that benefit communities in our traditional service areas and beyond.

Our current and recently completed regional project joint ventures include:

Electric Transmission Texas, LLC (ETT) — An AEP and Berkshire Hathaway Energy partnership focused on building transmission infrastructure in Texas. AEP provides planning, engineering, project management, financial accounting, right-of-way, construction, and operations services. ETT is involved in a number of projects related to the huge Competitive Renewable Energy Zone (CREZ) effort in Texas.

Grid AssuranceTM — A collaborative effort of eight electric utilities and energy companies to provide improved responses to major events affecting the electric transmission grid by giving transmission-owning entities access to domestically warehouse long lead-time critical equipment.

Pioneer TransmissionSM – A joint venture formed by Duke Energy and AEP to build and operate about 290 miles of 765-kilovolt (kV) transmission lines and related facilities in Indiana. The project links Duke Energy’s Greentown Station (near Kokomo, Indiana) to AEP’s Rockport Station (east of Evansville, Indiana). This project enhances the efficiency and reliability of the region’s transmission operators – Midcontinent Independent System Operator (MISO) and PJM Interconnection (PJM). AEPs plans to purchase Duke Energy’s ownership of the Greentown Station


Our competitive transmission affiliate, Transource Energy, pursues competitive, regulated transmission projects within and beyond AEP's service territory under FERC Order 1000. Combining rigorous project management with proven new concepts, Transource minimizes costs and maximizes reliability benefits. Transource has utility status in the Electric Reliability Council of Texas (ERCOT), Midcontinent Independent System Operator (MISO), PJM Interconnection and Southwest Power Pool (SPP) Regional Transmission Operator territories.

Why Partner with AEP Transmission?

  • We have a century of expertise in building and operating transmission lines.
  • We operate more than 40,000 miles of transmission lines, including 2,110 miles of 765-kV lines, more than any other system in North America.
  • We have a long history of innovation in transmission, from the first application of carrier-current telephony to transmission lines for system dispatching to the first Variable Frequency Transformer (VFT) in the United States
  • Our experience with transmission systems includes a wide range of climates and regions, from the cold and ice of the West Virginia mountains in winter to the marine climate and heat of a south Texas summer
  • Our long track record of successful partnerships includes the contributions of Electric Transmission Texas (ETT) in building the Competitive Renewable Energy Zone (CREZ) project in Texas. ETT, which is staffed by AEP employees, acquires and constructs transmission line and supporting stations, primarily in Texas.
  • Our environmental, safety and health commitment is reflected in our philosophy: "No aspect of operations is more important than the health and safety of people. Our customers' needs are met in harmony with environmental protection."