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United States. Federal Energy Regulatory Commission

Texas Eastern Transmission, LP Commences Construction on Appalachia to Market II and Armagh and Entriken HP Replacement Projects

Strategic Insights

— 1 min read

Texas Eastern Transmission, LP has initiated construction activities on the Appalachia to Market II and Armagh and Entriken HP Replacement Projects, as amended, with the start of site preparation at the Entriken Compressor Station in Huntingdon County, Pennsylvania, on August 18, 2025. The projects, previously authorized by the Federal Energy Regulatory Commission (FERC), will replace existing compressor units with more efficient and reliable systems, enhancing the overall transmission capacity of the pipeline.

Key Takeaways:

  • The Appalachia to Market II and Armagh and Entriken HP Replacement Projects, as amended, have begun construction, with site preparation initiated at the Entriken Compressor Station in Pennsylvania on August 18, 2025.
  • The projects aim to replace existing compressor units with more efficient and reliable systems, enhancing the pipeline's overall transmission capacity.
  • The construction activities will be reported in biweekly status reports filed with the FERC, as per Environmental Condition No. 8 of the October 23 Order and Environmental Condition No. 3 of the July 29 Order.
  • The FERC previously authorized the projects in Docket Nos. CP22-486-000 and CP25-24-000, with the October 23, 2023, and July 29, 2025, orders, respectively.
  • The Entriken Compressor Station is located in Huntingdon County, Pennsylvania, and the projects involve the installation of a 24,306 horsepower gas-driven turbine compressor unit, replacing the original 24,000 horsepower electric motor-driven compressor unit.

Statistics:

  • Construction activities commenced on August 18, 2025.
  • The projects involve the installation of a 24,306 horsepower gas-driven turbine compressor unit at the Entriken Compressor Station.
  • The replacement projects are authorized in accordance with the October 23, 2023, and July 29, 2025, FERC orders in Docket Nos. CP22-486-000 and CP25-24-000, respectively.

Sources:

  • Federal Energy Regulatory Commission (FERC). (2023). Texas Eastern Transmission, LP, 185 FERC P 61,038.
  • Federal Energy Regulatory Commission (FERC). (2025). Texas Eastern Transmission, LP, 192 FERC P 62,048.
  • 18 C.F.R. § 157.20(c)(1).

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