Monju nuclear power plant
Retired Japan
Gross capacity
280MW
Monju nuclear power plant is a fast reactor unit at Monju nuclear power plant in Japan rated at 280 MW gross. It is retired. Commercial operation began 1 Jan 1995.
Specification
| Reactor type | Fast reactor (FBR) |
|---|---|
| Model | not disclosed |
| Size class | Large |
| Coolant | Liquid sodium or lead |
| Moderator | None |
| Gross capacity | 280MW |
| Net capacity (reference) | 246MW |
| Net capacity (design) | 246MW |
| Thermal output | 714MWt |
| Typical enrichment | 15–20% fissile, or plutonium |
Ownership & location
| Site | Monju nuclear power plant |
|---|---|
| Unit | not stated |
| Country | Japan |
| Owner | Japan Atomic Energy Agency100% |
| Operator | Japan Atomic Energy Agency |
| Coordinates | 35.7400, 135.9878 |
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utilities do not publish fuel contracts.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
- 10 May 1986Construction start
- 5 Apr 1994First criticality
- 29 Aug 1995Grid connection
- 1 Jan 1995Commercial operation
- 1 Jan 2017Permanent shutdown
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 2024-05-16
- GEM.wiki entry (further reading) — CC BY-SA 4.0 — linked, not quoted