Rolls-Royce Expands UK Submarine Manufacturing Capabilities Amid Growing AUKUS Demands.
USS Minnesota, US Navy’s Nuclear Submarine. (Representational image)
Rolls-Royce INFINITY Derby Technology Park for Submarine Production: Rolls-Royce Submarines has partnered with INFINITY to develop advanced manufacturing capabilities at a planned 200-acre technology park in Derby, United Kingdom. The collaboration aims to accelerate the development of large-scale prototypes, expand domestic production capacity and strengthen Britain’s ability to manufacture strategically important defence components.
Announced on 6 November, the partnership will focus on developing advanced manufacturing processes designed to increase production speed and capacity while reducing material consumption and manufacturing costs.
The initiative is particularly significant for the UK’s submarine industrial base, which is facing growing demands from existing Royal Navy nuclear submarine programmes and future international defence commitments, including the AUKUS partnership.
The planned technology park will bring together advanced manufacturing, digital engineering, testing, validation, skills development and supply-chain collaboration at a single location. Although defence manufacturing will be a major focus, the facility is also expected to support aerospace, fusion and fission energy industries.
The project represents an effort to strengthen Britain’s domestic industrial capabilities and reduce dependence on manufacturing capacity located elsewhere.
What is the Rolls-Royce and INFINITY partnership about?
Under the agreement, Rolls-Royce Submarines and INFINITY will work together to develop large-scale prototypes of advanced components at the planned technology park in Derby.
The collaboration will concentrate on manufacturing techniques that can make it easier to produce complex, strategically important components within the UK.
Three key technologies are expected to form part of the planned manufacturing capabilities:
– Hot isostatic pressing: A manufacturing process that uses high temperature and high pressure to improve the density and structural properties of materials by reducing internal pores and defects.
– Power-beam welding: An advanced welding approach using concentrated energy to join materials, particularly where precision and high-quality joints are essential.
– Additive manufacturing: Commonly known as 3D printing, this process builds components layer by layer from digital designs, allowing manufacturers to produce complex shapes and structures.
Together, these technologies could help manufacturers develop, produce and test large components more efficiently.
An important objective is to shorten development cycles while reducing material waste and production costs. Rolls-Royce also expects the facilities to provide greater control over the manufacturing of strategically important components.
Inside INFINITY’s planned 200-acre technology park
INFINITY is developing the 200-acre technology park in Derby as a shared industrial and engineering hub.
Rather than functioning simply as a manufacturing facility, the proposed development is intended to bring together several stages of industrial innovation.
These include full-scale prototyping, digital engineering, testing and validation, technical skills development and collaboration between suppliers.
The idea is to create an environment where businesses can move from developing an engineering concept to producing and testing full-scale prototypes without having to depend on multiple separate facilities.
This could be particularly useful for companies operating in highly regulated industries, where components must undergo extensive testing and validation before entering production.
Rolls-Royce’s Nuclear Skills Academy is already operating at the site. The partnership is expected to support the establishment of additional specialist manufacturing capabilities.
The park is also intended to give businesses working at high technology-readiness levels access to the facilities, expertise and industrial infrastructure required to prepare products for commercial or operational use.
Why the partnership matters for Britain’s nuclear submarine programmes
The collaboration comes at an important time for Rolls-Royce Submarines, which is responding to increasing demand for naval nuclear propulsion work.
The company designs, manufactures and supports the pressurised-water reactors that power the Royal Navy’s nuclear submarine fleet.
Its work supports two major British submarine programmes: Astute and Dreadnought.
The Astute-class submarines are nuclear-powered attack submarines, while the Dreadnought programme is developing the next generation of the UK’s nuclear-powered ballistic missile submarines.
Rolls-Royce provides the reactor plants and associated components required for these strategically important naval platforms.
The company has more than 65 years of experience in submarine reactor development and currently employs more than 5,500 people.
Engineering and Technology Director Lee Warren said Rolls-Royce was increasing its manufacturing output and expected to provide reactors to Australia under the AUKUS agreement.
He explained that the new Derby facilities would allow the company to maintain its focus on delivering work at its Raynesway facility while exploring advanced manufacturing techniques for future nuclear power applications.
This distinction is important. The planned technology park is intended to develop additional manufacturing capabilities and support innovation, rather than simply replace Rolls-Royce’s existing production operations.
USS Minnesota, US Navy’s Nuclear Submarine.
AUKUS and the growing demand for submarine manufacturing
The AUKUS partnership between Australia, the United Kingdom and the United States is an important factor in the long-term outlook for Britain’s submarine industrial base.
Under the agreement, Australia is expected to acquire conventionally armed, nuclear-powered submarines, with the UK and US supporting the development of its submarine capabilities.
Rolls-Royce’s expected role in supplying reactors for Australian submarines adds to the manufacturing and engineering demands facing the company.
Producing advanced nuclear propulsion components requires specialised facilities, skilled personnel and strict quality-control procedures.
Developing additional domestic manufacturing capabilities could help the UK prepare for these requirements while strengthening its industrial supply chain.
The Derby technology park is therefore relevant not only to existing British submarine programmes but also to the country’s wider ambitions in nuclear-powered submarine technology.
Part of a wider investment in the UK’s submarine industrial base
The Rolls-Royce and INFINITY collaboration forms part of a broader programme of investment and industrial partnerships supporting Britain’s submarine sector.
In December 2025, engineering company AtkinsRéalis announced a framework agreement worth up to £400 million over five years, with an option to extend it by another two years.
The agreement covers specialist nuclear and engineering support for Rolls-Royce Submarines, alongside Frazer-Nash and Assystem.
Its areas of work include propulsion systems, safety assurance and systems engineering.
These collaborations highlight the importance of maintaining a strong network of specialist engineering companies, technology providers and suppliers to support complex nuclear submarine programmes.
The Derby development could add another dimension to this industrial ecosystem by expanding access to advanced manufacturing and prototyping facilities.
Technology park to support aerospace and fusion energy
Although defence manufacturing is a central focus, INFINITY intends the technology park to serve several other high-technology industries.
These include aerospace, nuclear fission and nuclear fusion.
UK Fusion Energy, the organisation responsible for delivering Britain’s first prototype fusion power plant, has separately partnered with INFINITY.
The collaboration is expected to help shape the technology park’s capabilities around the requirements of STEP Fusion.
STEP, or Spherical Tokamak for Energy Production, is the UK’s programme to develop a prototype fusion power plant at West Burton in Nottinghamshire.
Fusion energy research requires advanced materials, specialised manufacturing processes and complex engineering systems. The technologies planned for the Derby park could therefore have applications beyond submarine manufacturing.
This multi-sector approach could also encourage collaboration between companies working in defence, aerospace and energy.
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17,500 skilled jobs expected from the wider project
One of the most significant economic aspects of the development is its potential employment impact.
According to Rolls-Royce, the wider technology-park project is estimated to create 17,500 skilled jobs across the East Midlands.
However, this figure relates to the overall park development and should not be interpreted as the number of jobs directly created by the Rolls-Royce partnership.
The proposed industrial hub is expected to bring together suppliers, universities, skills providers and other technology partners.
Such an ecosystem could create opportunities for engineers, manufacturing specialists, technicians and skilled workers.
It could also strengthen the region’s position as a centre for advanced engineering and industrial innovation.
INFINITY Chief Executive Professor Gary Jones said the company’s ambition was to support the sovereign manufacture of advanced components and provide new capabilities for the UK’s defence industry.
The Rolls-Royce Submarines and INFINITY partnership represents an important step towards expanding Britain’s advanced manufacturing infrastructure.
However, the success of the initiative will depend on the development and qualification of the planned facilities, as well as their ability to move components from prototype production into regulated industrial manufacturing.
The companies have outlined the intended technologies and broader objectives but have not publicly disclosed a detailed delivery timetable or identified the specific components that will be developed at the site.
For Rolls-Royce, the project offers an opportunity to strengthen its manufacturing capabilities as demand for submarine nuclear propulsion work grows.
For the UK, it represents a wider effort to develop sovereign industrial capacity across defence, aerospace and advanced energy technologies.
If successfully delivered, the Derby technology park could become an important part of Britain’s advanced manufacturing ecosystem, supporting both its submarine programmes and its longer-term ambitions in nuclear technology and industrial innovation.