Trawsfynydd SMR / advanced nuclear site

StageDormant: Welsh Government stated (Dec 2025) it would dissolve developer Cwmni Egino at end of its agreement on 31 Mar 2026; site not among UK's initial SMR sites (May 2024)
Next milestoneNone scheduled: Egino work to be archived for possible future use; options left open for a future government
Last checked1 November 2026

Source: Welsh Government (GOV.WALES), Written Statement: Cwmni Egino Ltd →

What has changed on this project, and when

Next milestone: None scheduled: Egino work to be archived for possible future use; options left open for a future government2 November 2026 · previously: Technology partner selection and government backing for next phase
Stage: Dormant: Welsh Government stated (Dec 2025) it would dissolve developer Cwmni Egino at end of its agreement on 31 Mar 2026; site not among UK's initial SMR sites (May 2024)2 November 2026 · previously: Stalled: Welsh Government funding for development company Cwmni Egino ceased end March 2026; site not selected for first GB Energy-Nuclear SMR rollout (Wylfa chosen); awaiting UK government commitment

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