DEFENCE CONNECT : Australia commits $310 million to secure nuclear propulsion systems for SSN-AUKUS submarines : 24 February 2026 : by Stephen Kuper

The Albanese Government has announced a $310 million investment to procure critical long-lead components from the United Kingdom, marking a significant step forward in delivering Australia’s nuclear-powered submarines under the AUKUS program. The funding will support the manufacture of essential elements of the nuclear propulsion systems that will power Australia’s first two SSN-AUKUS submarines, which are scheduled to be built domestically at the Osborne Naval Shipyard.

Under the trilateral agreement, complete welded propulsion units will be delivered by Rolls‑Royce Submarines, with reactor production already underway at the company’s facility in Derby. The early acquisition of long-lead items is designed to ensure production schedules remain on track, preserve specialised industrial skills, and synchronise manufacturing timelines across the AUKUS partners. The $310 million investment complements Australia’s previously announced contribution of £2.4 billion over a decade to expand the UK’s nuclear submarine industrial capacity, reinforcing the deepening industrial integration underpinning the SSN-AUKUS program.

The propulsion investment comes alongside broader infrastructure development at Osborne, where the Australian Government has committed $3.9 billion to establish a new submarine construction yard. At peak activity, the construction yard is expected to employ at least 4,000 workers to design and build the necessary infrastructure, with approximately 5,500 direct jobs forecast to support submarine construction once the program reaches full production.

The long-lead procurement represents a critical milestone in ensuring Australia can begin building nuclear-powered submarines domestically before the end of the decade, delivering a sovereign industrial capability that will underpin the Royal Australian Navy’s future undersea warfare posture.

Deputy Prime Minister and Defence Minister Richard Marles said early investment in propulsion systems was essential to maintaining the program’s momentum and ensuring Australia develops the industrial capability required to operate nuclear-powered submarines independently.