Transwestern Pipeline Company Submits Advance Notification for Roswell Compressor Station Replacement Project

Strategic Insights -

Transwestern Pipeline Company, LLC has submitted a 30-Day Advance Notification to the Federal Energy Regulatory Commission (FERC) for the replacement of compression facilities at its Roswell Compressor Station in Roswell, New Mexico. The project involves replacing two of the four compressor units due to age and physical deterioration, with a new Solar Turbines Mars 90 gas unit and appurtenances. The new unit will be installed within the existing station yard in a previously disturbed area, and the estimated cost of the replacement is approximately $37.8 million.

Key Takeaways:

  • The Roswell Compressor Station replacement project involves replacing two compressor units with a new Solar Turbines Mars 90 gas unit, resulting in a total site-rated horsepower of 9,111 HP.
  • The new unit will be installed within the existing station yard in a previously disturbed area, and construction activities will be conducted within the workspace used to construct the existing facilities.
  • The estimated cost of the replacement is approximately $37.8 million.
  • The project will not result in a reduction or abandonment of service through the facilities, and the replacement units will have a substantially equivalent designed delivery capacity as the facilities being replaced.
  • The construction activities and restoration will be performed in accordance with applicable portions of the FERC's Upland Erosion Control, Revegetation and Maintenance Plan (2013).
  • Transwestern has confirmed that the project will occur entirely within the existing Station yard owned by the company, and no other property will be used or subject to ground disturbance.

Statistics:

  • The Roswell Compressor Station consists of four Cooper Bessemer RFB24 compressor units with a total station site-rated horsepower of 18,000 HP.
  • The two compressor units being replaced are driven by gas-powered engines, with a total site-rated horsepower of 13,200 HP.
  • The new Solar Turbines Mars 90 gas unit will be ISO-rated at 13,200 HP and site-rated at 9,111 HP.
  • The estimated cost of the replacement is approximately $37.8 million.

Sources:

  • Federal Energy Regulatory Commission (FERC): Section 2.55(b) Advance Notification Roswell Compressor Station Replacement Project ( September 4, 2025)
  • U.S. Geological Survey: 7.5-minute series topographic map (current)
  • FERC Upland Erosion Control, Revegetation and Maintenance Plan (2013)