Sanmen nuclear power plant 3-5
Pre-construction China
Gross capacity
1,200MW
Sanmen nuclear power plant 3-5 is a pressurised water reactor unit at Sanmen nuclear power plant in China rated at 1,200 MW gross. It is pre-construction. Commercial operation began 1 Jan 2027.
Specification
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | HPR-1000 |
| Size | Largeabove 300 MWe |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 1,200MW |
| Net capacity (reference) | not disclosed |
| Net capacity (design) | not disclosed |
| Thermal output | not disclosed |
| NSSS vendor | China National Nuclear Corporationall vendors |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Sanmen nuclear power plant |
|---|---|
| Unit | 3-5 |
| Country | China |
| Owner | China National Nuclear Power Co Ltd100% |
| Operator | Sanmen Nuclear Power |
| Coordinates | 29.1019, 121.6390 |
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
- China National Nuclear Corporation PWR fuel assemblies
- ENUSA Industrias Avanzadas PWR and BWR fuel assemblies
- Framatome PWR fuel assemblies
- KEPCO Nuclear Fuel PWR fuel assemblies
- Mitsubishi Heavy Industries PWR fuel assemblies
- Westinghouse Electric Company PWR fuel assemblies
Upstream
Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.
Fabricator capability is recorded against reactor type and model line, not against named units,
utilities do not publish fuel contracts. See the fuel chain.
Timeline
- 1 Jan 2027Commercial operation
Other units at Sanmen nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Sanmen nuclear power plant 1-1 | 1,251 | |
| Sanmen nuclear power plant 1-2 | 1,251 | |
| Sanmen nuclear power plant 2-3 | Under construction | 1,251 |
| Sanmen nuclear power plant 2-4 | Under construction | 1,251 |
| Sanmen nuclear power plant 3-6 | Pre-construction | 1,200 |
Other HPR-1000 units
66 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Cangnan San'ao nuclear power plant 1-1 | China | 1,215 | |
| Fangchenggang nuclear power plant 2-3 | China | 1,180 | |
| Fangchenggang nuclear power plant 2-4 | China | 1,180 | |
| Fuqing nuclear power plant 5 | China | 1,161 | |
| Fuqing nuclear power plant 6 | China | 1,150 | |
| Taipingling nuclear power plant 1-1 | China | 1,200 | |
| Zhangzhou nuclear power plant 1-1 | China | 1,212 | |
| Zhangzhou nuclear power plant 1-2 | China | 1,212 | |
| Cangnan San'ao nuclear power plant 1-2 | China | Under construction | 1,210 |
| Cangnan San'ao nuclear power plant 2-3 | China | Under construction | 1,215 |
| Cangnan San'ao nuclear power plant 2-4 | China | Pre-construction | 1,150 |
| Cangnan San'ao nuclear power plant 3-5 | China | Announced | 1,150 |
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06 · this unit last researched by GEM on 2026-06-08
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data