Current state
| Status | Under construction |
| Design | Hualong One (PWR) |
| Net capacity | 1,090 MWe |
| Country | China |
| Vendor | CNNC |
| Owner / operator | CNNC |
| Construction start | 2025 |
| Original COD target | — |
| Current COD estimate | 2031 |
| Schedule slippage | — |
Notes
Conventional-island raft FCD Aug 2026 (CINIE, single source) — not asserted. The recorded construction start 2025 predates Apr-2026 FCD (groundbreaking era); frozen, FCD recorded here instead. Phase II (units 3&4) Hualong One 2.0 demo approved Jul 2026, excavation blasted Sep 2026 — coverage-expansion backlog, not tracked units.
Milestone log
- 2026-06-16 — Listed as under construction in the WNA world table, grid connection estimated 2031 (source)
- 2026-04-04 — First safety-related concrete poured for the nuclear island (CNNC); unit enters main construction phase (source)
The milestone log is append-only: corrections are recorded as new entries, never rewrites. Full history via /api/v1/changes.