Current state
| Status | Under construction |
| Design | EPR (PWR) |
| Net capacity | 1,630 MWe |
| Country | United Kingdom |
| Vendor | EDF/Framatome |
| Owner / operator | NNB Generation Company (EDF) |
| Construction start | 2020 |
| Original COD target | — |
| Current COD estimate | 2031 |
| Schedule slippage | — |
Notes
Reactor pressure vessel installed June 2026; tracks ~12 months behind unit 1. Bulk-seeded 2026-07-13 from the WNA under-construction table (updated 2026-06-16). Capacity is design-typical net output; construction dates are provisional. Verification agent to confirm against IAEA PRIS and append milestones.
Milestone log
- 2026-06-16 — Listed as under construction in the WNA world table, grid connection estimated 2030 (source)
- 2026-07-28 — Correction: current COD estimate revised to 2031 after review against PRIS and the latest WNA reactor table (was 2030). (source)
The milestone log is append-only: corrections are recorded as new entries, never rewrites. Full history via /api/v1/changes.