Primorsk nuclear power plant 4
Announced Russia
Gross capacity
25MW
Primorsk nuclear power plant 4 is a pressurised water reactor unit at Primorsk nuclear power plant in Russia rated at 25 MW gross. It is announced.
Specification
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | RITM-200S |
| Size class | Large |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 25MW |
| Net capacity (reference) | not disclosed |
| Net capacity (design) | not disclosed |
| Thermal output | not disclosed |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Primorsk nuclear power plant |
|---|---|
| Unit | 4 |
| Country | Russia |
| Coordinates | 43.4845, 132.4955approximate |
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utilities do not publish fuel contracts.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.
Other units at Primorsk nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Primorsk nuclear power plant 1 | Announced | 25 |
| Primorsk nuclear power plant 2 | Announced | 25 |
| Primorsk nuclear power plant 3 | Announced | 25 |
| Primorsk nuclear power plant 5 | Pre-construction | 1,000 |
| Primorsk nuclear power plant 6 | Pre-construction | 1,000 |
Other RITM-200S units
8 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Cape Nagloynyn floating nuclear power plant 1 | Russia | Under construction | 106 |
| Cape Nagloynyn floating nuclear power plant 2 | Russia | Under construction | 106 |
| Cape Nagloynyn floating nuclear power plant 3 | Russia | Pre-construction | 106 |
| Cape Nagloynyn floating nuclear power plant 4 | Russia | Announced | 106 |
| Primorsk nuclear power plant 1 | Russia | Announced | 25 |
| Primorsk nuclear power plant 2 | Russia | Announced | 25 |
| Primorsk nuclear power plant 3 | Russia | Announced | 25 |
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 2026-07-07
- GEM.wiki entry (further reading) — CC BY-SA 4.0 — linked, not quoted