Eight containerized units are now running as one integrated system at the Australian Automation and Robotics Precinct near Perth, marking the official launch of Capture6's Project Tortuga in Western Australia.

The facility recovers freshwater from desalination and industrial brine while capturing carbon dioxide directly from the air. Its main product, at this stage, is data. Capture6 will use operating results from the site to underpin its first commercial facilities, which remain announced projects rather than built capacity.

What does the pilot actually produce?

Project Tortuga runs at a scale designed to mirror commercial operations. It will deliver data on three fronts: system performance, energy use, and product quality. Partners in water-intensive, hard-to-abate sectors will use those numbers to judge whether the technology deserves a place in their operations.

The company frames the deployment around two national figures. Australian desalination, energy, and industrial processes generate up to 950 gigaliters of brine each year. Treating that stream, Capture6 estimates, could unlock up to 470 GL of additional freshwater annually, alongside a technical potential to remove roughly 15 million metric tons of atmospheric CO2 per year.

Those are technical potentials, not contracted volumes. The pilot exists to close the gap between estimate and bankable project.

Why Perth, and why now?

The water arithmetic in Western Australia is unambiguous. According to the Water Corporation, inflows into Perth's dams averaged 420 GL a year before the mid-1970s. Since 2010 the average has fallen to about 76 GL a year. Desalination now supplies roughly half of the city's drinking water, which makes the brine left over from that desalination a substantial and currently underused stream.

Dan Bull MLA, Member for Maylands, said: "Perth's freshwater reserves and inflows now receive much less of the water they once did, and desalination is part of the suite of measures the WA Government is implementing to sustain water for the future."

He added: "Project Tortuga shows how we can get more out of every liter we desalinate while tackling climate change at the same time."

The project also feeds into Australia's net zero by 2050 commitment, which gives the company a policy deadline to work against.

How does this connect to Capture6's wider pipeline?

Capture6 is not starting from zero elsewhere. The company has previously prepared for phase 2 of its Monarch project after securing project-level financing, and Project Tortuga follows the same pattern: demonstrate at commercial-representative scale, then sell the dataset to financiers and industrial partners.

The logic is straightforward. Hard-to-abate sectors and utilities will not commit to brine treatment and carbon removal on a slide deck. They will commit on energy consumption per megaliter, recovery rates, and product quality measured over months of continuous running.

What decides what happens next?

The milestone to watch is the transition from this demonstration to a signed commercial facility. Until Capture6 converts operating data from the Perth site into a financed plant, the 470 GL and 15 million tonne figures stay in the category of potential.

For now, the units are running. The verdict on Australia's brine resource arrives with the first commercial contract.