Caturus LLC plans to nearly double the expected capacity of its Commonwealth LNG plant currently under construction in Cameron Parish, La.

The company is planning a five-train, 7.75 million tonnes/year (tpy) expansion, which would bring the site’s planned capacity to about 17.25 million tpy, the company noted in a release Sept. 15. 

Caturus LLC in May reached final investment decision (FID) on the current design of a six-train, $13.5-billion Commonwealth LNG plant. That sanction included closing of $9.75 billion in project financing and marked the start of full construction of the 9.5 million tpy plant. Phase 1 operations are expected in 2030.

Base project construction is progressing on schedule with operations targeted for 2030, with about 8.5 million tpy capacity subscribed under long-term sale and purchase agreements, the company said. The expansion project is targeted to enter service in the early 2030s.

Caturus said the expansion reflects strong market demand for additional US LNG volumes and long-term supply security, while capitalizing on infrastructure and commercial momentum already established at Commonwealth LNG.

The expansion would leverage land already controlled by Caturus and draw on the engineering, procurement, and construction program established for the initial phase of Commonwealth LNG. The company also said its integrated upstream-to-export model, including gas production from its South Texas acreage, would support the additional liquefaction capacity.