Current state
| Status | Under construction |
| Design | BREST-300 (LFR) |
| Net capacity | 300 MWe |
| Country | Russia |
| Vendor | Rosatom |
| Owner / operator | Rosatom (SCC) |
| Construction start | 2021-06-08 |
| Original COD target | — |
| Current COD estimate | 2028 |
| Schedule slippage | — |
Notes
COD tension: NEI May 2026 reports launch postponed 2026->2029 with vessel ~70% assembled — single source, current COD estimate 2028 unchanged pending corroboration. Control-room simulator commissioned Jul 2026 (WNN, single source). Internal-cavity concreting first stage Sep 2026 (NEI, single source).
Milestone log
- 2021-06-08 — Construction start (first concrete) (source)
- 2026-06-16 — Listed as under construction in the WNA world table, grid connection estimated 2028 (source)
- 2026-05-19 — Turbine/generator foundation concreting begins (3 stages, >620 m3, 36 spring elements; unit delivered end-2025) (source)
- 2026-06-30 — Pipeline system connecting central and four peripheral cavities completed; first lead-coolant circuit closed (H1 2026; exact date N/A) (source)
The milestone log is append-only: corrections are recorded as new entries, never rewrites. Full history via /api/v1/changes.