# Source note — Rolls-Royce SMR / Siemens Energy Newcastle turbine components (2026-09-05)

## Selected source-card
**Article:** `blog/articles/rolls-royce-siemens-smr-turbine-supply-chain-source-card.html`  
**Evidence label:** official company release + UK government context + World Nuclear News trade reporting. This is a supply-chain/manufacturing milestone for a planned SMR fleet, not construction approval, final investment decision, operating licence or delivered electricity.

## Primary/official sources
1. **Rolls-Royce SMR — “Steam turbine components for Rolls-Royce SMR to be manufactured in the UK”**  
   URL: https://www.rolls-royce-smr.com/press/steam-turbine-components-for-rolls-royce-smr-to-be-manufactured-in-the-uk  
   Reader capture: `research/energy/rolls-royce-siemens-smr-turbine-supply-chain-source-card-2026-09-05/source_official_rolls_royce_smr_release.md`  
   Key anchors used:
   - Release date: September 3, 2026.
   - Key steam turbine components for the first three planned Gwyndod SMRs on Anglesey will be manufactured at Siemens Energy's Newcastle site.
   - Components named include high-pressure turbines and valve casings.
   - Rolls-Royce SMR says this is the first time such components will be produced for an SMR anywhere in Europe.
   - The Newcastle facility is planned to become the service hub for Siemens Energy's key components for the Rolls-Royce SMR UK fleet.
   - The announcement is said to support more than 550 jobs and create new opportunities in Newcastle.

2. **GOV.UK / Great British Energy – Nuclear — contract with Rolls-Royce SMR**  
   URL: https://www.gov.uk/government/news/great-british-energy-nuclear-and-rolls-royce-smr-sign-contract  
   Reader capture: `research/energy/rolls-royce-siemens-smr-turbine-supply-chain-source-card-2026-09-05/source_official_govuk_contract.md`  
   Key anchors used:
   - GBE-N signed a contract with Rolls-Royce SMR on April 13, 2026.
   - The work commenced technology-design activities for the UK's first SMRs.
   - The contract requires site-specific design, regulatory engagement and planning processes ahead of a future Final Investment Decision.
   - GOV.UK says £2.6 billion was allocated in the 2025 Spending Review to enable the contract and wider programme delivery.

3. **GOV.UK / Great British Energy – Nuclear — Wylfa site selection**  
   URL: https://www.gov.uk/government/news/wylfa-confirmed-as-site-for-uks-first-small-modular-reactor  
   Reader capture: `research/energy/rolls-royce-siemens-smr-turbine-supply-chain-source-card-2026-09-05/source_official_govuk_wylfa_site.md`  
   Key anchors used:
   - Wylfa on Anglesey was selected as the site for the UK's first SMR project.
   - The official page describes up to 1.5 GW of low-carbon energy and up to 3,000 jobs during peak construction.

## Trade/reporting source
4. **World Nuclear News — “Siemens Energy to produce Rolls-Royce SMR turbines in the UK”**  
   URL: https://world-nuclear-news.org/articles/siemens-energy-to-produce-rolls-royce-smr-turbines-in-the-uk  
   Reader capture: `research/energy/rolls-royce-siemens-smr-turbine-supply-chain-source-card-2026-09-05/source_trade_world_nuclear_news.md`  
   Key anchors used:
   - WNN reports the latest manufacturing announcement and the February 2025 Siemens Energy/Rolls-Royce SMR turbine-systems partnership.
   - WNN identifies the Rolls-Royce SMR design as a 470 MWe small pressurized-water reactor.
   - WNN states a final investment decision is expected in 2029, and notes the April 2026 GBE-N contract for site-specific design and delivery activities at Wylfa.

## Editorial cautions
- Do not say the UK is already operating these SMRs or that construction has started.
- Do not say Siemens Energy has built the turbines yet; the supported claim is that the Newcastle site will manufacture key components.
- Keep the FID/licensing/planning gate visible. The source trail supports supply-chain localization and project preparation.
- Do not turn this into a uranium, Rolls-Royce, Siemens Energy or nuclear-equity investment recommendation.
- Not investment advice.