Glenfarne moves toward final engineering, cost estimate ahead of Alaska LNG Pipeline FID

Glenfarne Group LLC subsidiary Glenfarne Alaska LNG LLC, a majority owner and lead developer of Alaska LNG, a joint venture with the State of Alaska’s Alaska Gasline Development Corp., has selected Worley to undertake additional engineering and prepare a final cost estimate for the Alaska LNG Pipeline in sufficient detail to achieve final investment decision for the pipeline (OGJ Online, Mar. 28, 2025).

In a release May 27, Glenfarne said this work has begun and will utilize and supplement the package of previously completed engineering work and update the cost of the pipeline.

Worley also has been selected as the preferred engineering firm for the Cook Inlet Gateway LNG import terminal and project delivery advisor to Glenfarne across the Alaska LNG projects.

Concurrently with the final engineering work, Glenfarne is engaging with prospective strategic partners to help deliver the Alaska LNG project.

The Alaska LNG Pipeline is an 807-mile, 42-in. OD pipeline capable of transporting enough natural gas to meet both Alaska’s domestic needs and supply the full 20 million tonnes/year Alaska LNG export plant, Glenfarne said.

The pipeline will be constructed in two phases. The first phase will deliver natural gas about 765 miles from the North Slope to the Anchorage region. The second phase adds compression equipment and about 42 miles of pipeline under Cook Inlet to the Alaska LNG Export plant in Nikiski and will be constructed concurrently with the LNG export plant.

Glenfarne anticipates a final investment decision on the Alaska LNG Pipeline this year.