Rolls-Royce Derby Nuclear Submarine Propulsion Facility (Raynesway)
Raynesway, Derby, UK · 1960-Present (licensed 1960, ongoing operations and investment) · £9bn (2025 deal for nuclear submarine reactors), £2.5bn (2025 deal for AUKUS, potentially)
The judgement call
Account-gated at launchRolls-Royce has been responsible for the UK Royal Navy's nuclear propulsion plant for over 60 years, demonstrating a long-standing strategic national capability. - The £9bn deal for nuclear submarine reactors and potential £2.5bn deal for AUKUS highlight the significant and continuous investment required for nuclear defense capabilities. - The establishment of the UK's first dedicated Nuclear Skills Academy in Derby underscores the critical importance of specialized training and talent development for this highly technical sector. - The operation of nuclear licensed sites requires rigorous safety protocols and regulatory oversight, making it one of the most challenging engineering fields.
Key engineering challenges
Designing, manufacturing, and supporting highly complex and safety-critical nuclear propulsion plants for submarines. - Processing uranium fuel and fabricating reactor cores under stringent regulatory requirements. - Ensuring the long-term reliability and safety of nuclear systems in extreme operational environments. - Developing and maintaining a highly specialized workforce through initiatives like the Nuclear Skills Academy.
Project facts
- Client / owner
- Rolls-Royce Submarines Limited (for UK Ministry of Defence, and AUKUS partners)
- Lead contractor
- Rolls-Royce Submarines Limited
- Lead designers
- Rolls-Royce Submarines Limited
- Project type
- new build | upgrade | manufacturing
- Scale
- Produces PWR nuclear reactor cores for all UK Royal Navy nuclear submarines; operates two nuclear licensed sites; UK's first dedicated Nuclear Skills Academy.
- Disciplines
- nuclear engineering; mechanical; electrical; materials science; chemical engineering; systems; safety engineering
- Standards & frameworks
- Nuclear safety regulations (ONR), defense standards
Sources: Rolls-Royce.com (https://www.rolls-royce.com/products-and-services/defence/submarines.aspx) - Office for Nuclear Regulation (ONR) (Feb 2026, https://www.onr.org.uk/our-work/what-we-regulate/defence/defence-sites/nuclear-fuel-production-plant-site) - BBC News (Jan 2025, https://www.bbc.com/news/articles/c93q974p341o) - BBC News (Jun 2025, https://www.bbc.com/news/articles/c1w3x8xr8wqo)