Seversk nuclear power plant 1
Under construction Russia
Gross capacity
320MW
Seversk nuclear power plant 1 is a fast reactor unit at Seversk nuclear power plant in Russia rated at 320 MW gross. It is under construction. Commercial operation began 1 Jan 2028.
Specification
| Reactor type | Fast reactor (FBR) |
|---|---|
| Model | BREST-OD-300 |
| Size class | Large |
| Coolant | Liquid sodium or lead |
| Moderator | None |
| Gross capacity | 320MW |
| Net capacity (reference) | 300MW |
| Net capacity (design) | 300MW |
| Thermal output | 700MWt |
| Typical enrichment | 15–20% fissile, or plutonium |
Ownership & location
| Site | Seversk nuclear power plant |
|---|---|
| Unit | 1 |
| Country | Russia |
| Owner | Rosatom100% |
| Operator | Rosenergoatom |
| Coordinates | 56.6583, 84.9482 |
Fuel chain for this unit
Fuel form
Mixed oxide or metallic fuel
Enrichment
15–20% fissile, or plutonium
Who makes this assembly
- TVEL Fuel Company Fast reactor fuel, including MOX
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utilities do not publish fuel contracts.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
- 8 Jun 2021Construction start
- 1 Jan 2028Commercial operation
Other units at Seversk nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Seversk nuclear power plant 2 | Cancelled | 1,255 |
| Seversk nuclear power plant Original 1 | Cancelled | 1,200 |
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