Downer proudly supported the successful delivery of the Moomba Carbon Capture and Storage (CCS) facility in South Australia — one of the largest facilities of its kind in the world.
The challenge
As the energy transition accelerates, the Moomba CCS facility will be a critical project supporting Australia’s journey towards net zero.
Operated by Santos, the project achieved start-up in October 2024, with full ramp-up attained within weeks of the first CO2 injection.
The solution
Downer’s Industrial & Power Generation team led the civil, mechanical and electrical construction and commissioning for the project, which included the CCS facility, Heat Recovery Steam Generator and LoHeat facility. Commencing with early contractor involvement in 2019, Downer started construction in 2022, and reached mechanical completion in December 2024. Moomba CCS is one of the lowest cost CCS facilities constructed to date, and has the ability to store up to 1.7 million tonnes of CO2 per year.
Working with both new and existing infrastructure at the site, Downer’s delivery solution involved two phases. Phase 1 focused on the CCS facility and Phase 2 included the Heat Recovery Steam Generator and LoHeat facility. Downer also managed four shutdowns of the existing Moomba Gas Plant, where CO2 is captured before being fed into the new facility.
This project demonstrates Downer’s capacity to deliver complex, large-scale infrastructure that supports decarbonisation at scale, while maintaining safety and quality standards.
Moomba CCS will be a critical project supporting Australia’s journey towards net zero. We’re proud to have delivered this project safely and effectively for Santos, continuing our decadeslong relationship supporting the LNG industry,
