Westinghouse Springfields at Salwick PR4 0XJ is the UK's only nuclear fuel manufacturing facility, employing around 800 highly skilled nuclear professionals on a 150-year lease from the Nuclear Decommissioning Authority. The site produces fuel covering roughly 32 percent of UK low-carbon electricity, with HALEU, SMR, and molten salt fuel programmes scaling through 2026.
Key Takeaways
- Westinghouse Springfields at Salwick PR4 0XJ is the UK's only nuclear fuel manufacturing facility, employing around 800 highly skilled nuclear professionals on a 150-year lease from the Nuclear Decommissioning Authority dating from 1 April 2010
- The site produces AGR fuel, LWR fuel, and intermediate uranium products, supplying fuel for approximately 32 percent of UK low-carbon electricity through the Oxide Fuels Complex
- Three active expansion workstreams are driving 2026 hiring: HALEU production for advanced reactors, the Terrestrial Energy IMSR fuel pilot plant (construction begins 2026), and TRISO fuel Pre-Front End Engineering Design with Urenco
- SC clearance is the standard for engineering roles at Springfields, consistent with other ONR-regulated civil nuclear fuel cycle sites, with a subset of defence-adjacent or sensitive material roles requiring DV
- North West nuclear salaries apply, with fuel cycle and criticality safety specialisms commanding premiums of 15 to 20 percent over standard civil nuclear power roles
Why Westinghouse Springfields Matters in UK Nuclear
Springfields is the only commercial nuclear fuel manufacturing facility in the United Kingdom. The site has been making nuclear fuels since 1946, when it was converted from a wartime munitions factory under the UK Atomic Energy Authority. Since then, it has been operated successively by UKAEA, British Nuclear Fuels, and now Springfields Fuels Limited under Westinghouse Electric UK Limited on a 150-year lease from the NDA. Tarik Choho is President of Nuclear Fuel for Westinghouse, with Springfields the centrepiece of the UK fuel business.
The strategic importance is hard to overstate. Fuel manufactured at Springfields covers roughly 32 percent of UK low-carbon electricity through the Oxide Fuels Complex, supplying both the operational AGR fleet (Heysham 1 and 2, Torness, Hartlepool) and overseas LWR customers. The site sits at the centre of UK fuel cycle sovereignty, alongside Urenco Capenhurst on the enrichment side. The wider nuclear newbuild demand picture across the UK places Springfields at the supply-side of every newbuild and SMR scenario currently progressing.
What does Springfields actually produce?
The Oxide Fuels Complex at Springfields produces Advanced Gas-Cooled Reactor (AGR) fuel for the operational UK AGR fleet, Light Water Reactor (LWR) fuel for domestic and overseas customers, and intermediate uranium products including uranium hexafluoride. The site has produced 12 million AGR pellets and 20 million LWR pellets cumulatively. Historic production also included Magnox fuel for the legacy fleet.
Where exactly is Westinghouse Springfields located?
The site sits at Salwick, Lancashire, between Preston and Blackpool, just west of Preston. The full postal address is Springfields Fuels Limited, Westinghouse, Springfields, Salwick, Preston PR4 0XJ. The location offers commuting catchment from Preston, Blackpool, Lancaster, the wider Fylde Coast, and (for senior roles supporting relocation) the Manchester and Liverpool metropolitan areas via the M6 and M55.
Engineering Roles and Clearance at Springfields
SC is the standard clearance for engineering roles at Springfields, consistent with other ONR-regulated civil nuclear fuel cycle sites. A smaller subset of roles handling sensitive material directly, supporting defence-adjacent fuel cycle work, or accessing certain classified design content, requires DV. Civil nuclear safety case work at Springfields sits firmly at the SC level for the majority of engineering positions.
The engineering disciplines in heaviest demand at Springfields are criticality safety engineering (fuel cycle is fundamentally a criticality discipline), process engineering for uranium handling and pellet production, chemical engineering for the conversion and deconversion chains, instrumentation and control engineering across the Oxide Fuels Complex, safety case engineering across the manufacturing licence, and quality assurance and inspection roles for fuel pellet and assembly verification. The career trajectory for engineering candidates with security clearance at Springfields benefits from the site's unique position in the UK fuel cycle, which gives engineers exposure that simply doesn't exist elsewhere in the country.
What clearance level do Springfields engineering roles require?
SC is the entry threshold for most engineering roles. The application timeline runs 8 to 14 weeks for SC through UKSV, with continuous UK residency of 5 years immediately preceding the application required for the standard pathway. A subset of senior or defence-adjacent fuel cycle roles, including some work supporting naval fuel programmes through international agreements, may require DV. Existing transferable SC clearance from Sellafield, Capenhurst, or the wider UK civil nuclear estate accelerates the start date materially.
Which engineering disciplines are most in demand at Springfields?
Criticality safety engineers with fuel cycle experience are the rarest cohort and command the strongest premium. Process engineers from chemical and uranium handling backgrounds, instrumentation and control engineers with safety-critical experience, and senior safety case engineers fluent in the ONR regulatory regime form the second tier of priority hires. Quality assurance engineers and fuel pellet inspection specialists are the steady-state hiring need across the manufacturing cycle.
North West Nuclear Salary Context
Springfields sits within the same North West nuclear salary band as Urenco Capenhurst and the wider Cumbrian and Lancashire nuclear cluster. Senior engineers (6 to 10 years experience) earn £55,000 to £72,000 permanent base, with Inside IR35 contract day rates concentrated at £450 to £600. Principal-level engineers reach £72,000 to £88,000 base, with contract day rates of £600 to £750 where Outside IR35 is supported by the Statement of Work.
Fuel cycle and criticality safety specialisms attract a 15 to 20 percent premium over standard civil nuclear power roles because the candidate pool is materially smaller. Springfields-specific experience is rare, given the site's uniqueness in the UK; engineers with prior Westinghouse Group international experience (Columbia SC, the European sites) command similar premiums. The same dynamic applies across the UK fuel cycle, where specialist supply is a structural constraint and counter offer activity at senior level sits at the 65 to 75 percent baseline of the wider cleared nuclear community. Candidates entering the site through 2026 should be aware of common nuclear recruitment red flags to avoid in the selection process.
Active 2025-2026 Programmes Driving Springfields Hiring
Three live workstreams are scaling engineering demand at Springfields through 2026 and beyond.
The Terrestrial Energy IMSR fuel pilot plant signed in November 2025 (building on the August 2023 initial contract) commits Springfields to design and construct an Integral Molten Salt Reactor fuel pilot plant. Construction begins in 2026. The scope covers deconversion, fabrication, packaging, and transportation, using SALEU (Standard Assay Low Enriched Uranium) as the fuel choice to maximise existing infrastructure use and shield the programme from HALEU supply constraints. The pilot plant will scale to commercial fuel production for a future fleet of IMSR plants operating in the 2030s.
The UK Nuclear Fuel Fund awarded Westinghouse $11 million to upgrade Springfields for HALEU production for next-generation reactors and accident tolerant fuels for LWRs. HALEU (High-Assay Low-Enriched Uranium) is the enriched fuel form required for SMRs and AMRs, and the Springfields upgrade positions the site as a UK production hub. A Westinghouse and Nuclear Transport Solutions agreement signed in January 2026 codevelops HALEU transport packaging, with Lord Vallance (UK Minister for Science, Innovation, Research, and Nuclear, appointed September 2025) confirming the strategic importance to UK energy security.
The TRISO fuel Pre-Front End Engineering Design study, with Urenco as partner, is the third active workstream. TRISO (tristructural isotropic) fuels are designed for advanced reactor concepts. Together with the £13 million December 2022 funding for new uranium conversion capabilities targeting first commercial output from 2028, the cumulative public and private investment at Springfields through this decade runs well into nine figures.
How to Hire for Springfields Engineering Roles
The framework below applies to live cleared engineering briefs at Springfields, drawing on the wider nuclear recruitment cleared candidate pool across the North West nuclear cluster.
Step 1: Brief against the live cleared North West engineering pool. The active cleared engineering pool across Springfields, Capenhurst, Sellafield, and Heysham concentrates within commuting distance of the major Lancashire and Cumbrian sites. Map current availability before the role goes to advert, surfacing engineers on notice or open to conversation.
Step 2: Surface fuel cycle adjacencies. The pure Springfields candidate pool is small. Adjacent disciplines providing the strongest transferable-skill pipeline include criticality safety engineers from Sellafield fuel handling, chemical process engineers from regulated high-hazard industries (COMAH operators), and Westinghouse Group engineers from the US Columbia facility or European sites willing to relocate to Lancashire.
Step 3: Confirm SC vs DV at intake. The default is SC. Defence-adjacent fuel cycle work and certain naval fuel programmes may require DV, with the 6 to 9 month vetting extension that implies. Briefing the right vetting level avoids the timeline penalty of over-specifying.
Step 4: Run IR35 status determination role by role. Springfields contractor engagements split across Inside and Outside IR35. The April 2026 Joint and Several Liability legislation has tightened the determination process across UK nuclear supply chains. Design the Statement of Work to support the determination jointly with the client procurement team.
Step 5: Onboard against the programme arc. Springfields runs steady-state fuel manufacturing alongside the IMSR, HALEU, and TRISO programme builds. Onboarding should map the engineer's first deliverable to the live programme stage, with mentor allocation from the relevant Westinghouse technical lead, and explicit clearance progression milestones documented within the first 90 days.
Frequently Asked Questions
What's the difference between Springfields and Urenco Capenhurst?
Springfields manufactures finished nuclear fuel (pellets, rods, assemblies); Urenco Capenhurst enriches uranium hexafluoride (UF6) using gas centrifuge technology. They sit on the same UK fuel cycle, sequentially: Capenhurst enriches uranium that then goes to Springfields for fabrication into fuel for AGR, LWR, and (from 2026 onwards) SMR and molten salt reactors. The two sites are 100 miles apart but commercially linked through the UK fuel cycle.
Is Springfields owned by Westinghouse?
Operationally yes, structurally no. The site land is owned by the Nuclear Decommissioning Authority. Springfields Fuels Limited operates the site under a 150-year lease from the NDA, effective from 1 April 2010. SFL is owned by Westinghouse Electric Company. The 2010 transition transferred permanent ownership of SFL to Westinghouse alongside the long-term lease.
What's the Terrestrial Energy IMSR fuel programme at Springfields?
Terrestrial Energy signed an expanded manufacturing and supply contract with Springfields Fuels Limited in November 2025 to design and construct an Integral Molten Salt Reactor fuel pilot plant. Construction begins in 2026. The pilot uses SALEU (Standard Assay Low Enriched Uranium), avoiding HALEU supply constraints, and will scale to commercial fuel production for a future fleet of IMSR plants operating from the 2030s onwards.
Does Springfields produce HALEU fuel?
Springfields is being upgraded to produce HALEU (High-Assay Low-Enriched Uranium) for advanced reactors and accident tolerant fuels for LWRs, supported by an $11 million UK Nuclear Fuel Fund grant. A Westinghouse and Nuclear Transport Solutions agreement signed in January 2026 codevelops HALEU transport packaging. The HALEU production capability is intended to reduce UK reliance on Russian nuclear fuel and supply allies through SMR and AMR programmes.
How long does SC clearance take for a Springfields candidate?
SC processing through UKSV runs 8 to 14 weeks for single-nationality UK applicants with 5 years continuous UK residency. Dual nationals and applicants with overseas residency history may see 10 to 18 weeks. Engineers holding live transferable SC from Sellafield, Capenhurst, Heysham, or another UK civil nuclear site can typically start within 4 to 8 weeks of offer acceptance.
Hiring engineers for Westinghouse Springfields?
Scantec maintains a live SC and DV cleared candidate pool across the UK fuel cycle including Springfields, Capenhurst, Sellafield, and the wider North West nuclear cluster. Contact us to brief a Springfields requirement against the available pool, or to discuss a cleared engineering opportunity at the site.
