Fukushima Daiichi nuclear power plant 1
Retired Japan
Gross capacity
460MW
Fukushima Daiichi nuclear power plant 1 is a boiling water reactor unit at Fukushima Daiichi nuclear power plant in Japan rated at 460 MW gross. It is retired. Commercial operation began 26 Mar 1971.
Specification
| Reactor type | Boiling water reactor (BWR) |
|---|---|
| Model | BWR-3 |
| Size | Largeabove 300 MWe |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 460MW |
| Net capacity (reference) | 439MW |
| Net capacity (design) | 439MW |
| Thermal output | 1,380MWt |
| NSSS vendor | GE Vernova Hitachi Nuclear Energyall vendors |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Fukushima Daiichi nuclear power plant |
|---|---|
| Unit | 1 |
| Country | Japan |
| Owner | Tokyo Electric Power Co100% |
| Operator | Tokyo Electric Power |
| Coordinates | 37.4231, 141.0331 |
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
- Framatome BWR fuel assemblies
- Global Nuclear Fuel BWR fuel assemblies
- Westinghouse Electric Company BWR 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utilities do not publish fuel contracts.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
- 25 Jul 1967Construction start
- 10 Oct 1970First criticality
- 17 Nov 1970Grid connection
- 26 Mar 1971Commercial operation
- 19 May 2011Permanent shutdown
Other units at Fukushima Daiichi nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Fukushima Daiichi nuclear power plant 2 | Retired | 784 |
| Fukushima Daiichi nuclear power plant 3 | Retired | 784 |
| Fukushima Daiichi nuclear power plant 4 | Retired | 784 |
| Fukushima Daiichi nuclear power plant 5 | Retired | 784 |
| Fukushima Daiichi nuclear power plant 6 | Retired | 1,100 |
| Fukushima Daiichi nuclear power plant 7 | Cancelled | 1,380 |
| Fukushima Daiichi nuclear power plant 8 | Cancelled | 1,380 |
Other BWR-3 units
3 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Santa Maria De Garona nuclear power plant | Spain | Retired | 466 |
| Shimane nuclear power plant 1 | Japan | Retired | 460 |
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
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data