Southern Company Services, Inc. Supports Kosciusko Junction Pipeline Project

Strategic Insights -

Southern Company Services, Inc., as an agent for Alabama Power Company, Georgia Power Company, Mississippi Power Company, and Southern Power Company, has intervened in the Federal Energy Regulatory Commission (FERC) proceedings for the certification of public convenience and necessity for the Kosciusko Junction Pipeline Project. The project, proposed by Gulf South Pipeline Company, LLC and Texas Gas Transmission, LLC, aims to create approximately 1.175 billion cubic feet per day of new pipeline capacity, providing firm transportation of new gas supplies from the Midcontinent, Marcellus, and Fayetteville supply basins to Gulf South's delivery markets.

The project will involve the construction of approximately 111 miles of 36-inch-diameter pipe, six new gas-fired compressor units at two new and one existing compressor stations, four new receipt and delivery meter and regulator stations, and the repurposing of the underutilized Greenville Lateral and Isola Compressor Station. The proposed facilities will be located in several Mississippi counties, with approximately 37% of the proposed Columbia Lateral pipeline and 40% of the proposed Kosciusko Pipeline will be collocated within existing rights-of-way, reducing the impact on landowners and sensitive habitats.

Moreover, the project has been designed to minimize and mitigate the potential impact on air quality through the use of low emissions combustion technology at the proposed new compressor stations and electric seal gas booster pumps. The applicants have also engaged in a robust community outreach program, securing survey permission for 100% of the project's pipeline route and 33% of the project's rights-of-way through private negotiations.

Key Takeaways:

  • The Kosciusko Junction Pipeline Project will create approximately 1.175 billion cubic feet per day of new pipeline capacity.
  • The project will involve the construction of approximately 111 miles of 36-inch-diameter pipe, six new compressor units, four new meter and regulator stations, and the repurposing of the Greenville Lateral and Isola Compressor Station.
  • The project has been designed to minimize environmental and landowner impacts, with 37% of the proposed Columbia Lateral pipeline and 40% of the proposed Kosciusko Pipeline located within existing rights-of-way.
  • The project will utilize low emissions combustion technology and electric seal gas booster pumps to minimize air quality impacts.
  • The applicants have engaged in a robust community outreach program to minimize impacts on landowners and sensitive habitats.

Statistics:

  • 1.175 billion cubic feet per day: the new pipeline capacity to be created by the project.
  • 111 miles: the length of 36-inch-diameter pipe to be constructed as part of the project.
  • 6: the number of new gas-fired compressor units to be built as part of the project.
  • 4: the number of new receipt and delivery meter and regulator stations to be built as part of the project.
  • 420,000 Dth/d: the amount of short-haul capacity on the Texas Gas mainline system to be leased by Gulf South.
  • 595,000 Dth/d: the amount of capacity on the Greenville Lateral to be leased by Gulf South to Texas Gas.
  • September 12, 2025: the date on which Applicants filed the joint abbreviated application for certificates of public convenience and necessity.
  • September 17, 2026: the proposed completion date for the project.

Sources:

  • Application for certificates of public convenience and necessity, filed on September 12, 2025, by Gulf South Pipeline Company, LLC and Texas Gas Transmission, LLC.
  • Motion to Intervene, filed on October 14, 2025, by Southern Company Services, Inc.