Southern Energy SA (SESA) has officially reached a final investment decision (FID) on its ambitious floating liquefied natural gas (FLNG) export project off the coast of Argentina, marking a major milestone for South America’s emerging LNG sector.
The project is being developed by a consortium that includes Harbour Energy, Pan American Energy, YPF, Pampa Energía, and Golar LNG. Together, the partners have committed to advancing one of the region’s most significant energy infrastructure ventures to date.
As part of the plan, Golar LNG will supply two state-of-the-art FLNG vessels — the Hilli Episeyo and the MK II — which together will provide a total liquefaction capacity of approximately 5.95 million tonnes per annum (mtpa). This floating LNG setup is expected to streamline production and export capabilities, offering a flexible, lower-cost alternative to traditional onshore facilities.
The first phase of the project will see the Hilli Episeyo begin operations by the end of 2027, while the MK II vessel is slated to come online in late 2028. Once operational, the project will enable Argentina to export LNG to global markets, enhancing energy security and strengthening the country’s position as a key player in the international gas trade.
This decision highlights growing momentum for floating LNG technology, particularly in regions where rapid deployment and modular scalability are critical. It also represents a broader push across the industry toward innovative solutions that meet rising global energy demand while offering greater flexibility and resilience.