Takahama nuclear power plant 4
Gross capacity
870MW
Takahama nuclear power plant 4 is a pressurised water reactor unit at Takahama nuclear power plant in Japan rated at 870 MW gross. It is operating. Commercial operation began 5 Jun 1985.
Specification
| Reactor type | Pressurised water reactor (PWR) |
|---|---|
| Model | Mitsubishi 3-loopM (3-loop) in the source |
| Size | Largeabove 300 MWe |
| Coolant | Light water |
| Moderator | Light water |
| Gross capacity | 870MW |
| Net capacity (reference) | 830MW |
| Net capacity (design) | 830MW |
| Thermal output | 2,660MWt |
| NSSS vendor | Mitsubishi Heavy Industriesall vendors |
| Typical enrichment | 3–5% U-235 |
Ownership & location
| Site | Takahama nuclear power plant |
|---|---|
| Unit | 4 |
| Country | Japan |
| Owner | Kansai Electric Power Co100% |
| Operator | Kansai Electric Power |
| Coordinates | 35.5223, 135.5036 |
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utilities do not publish fuel contracts.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
- 19 Mar 1981Construction start
- 11 Oct 1984First criticality
- 1 Nov 1984Grid connection
- 5 Jun 1985Commercial operation
Other units at Takahama nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Takahama nuclear power plant 1 | 826 | |
| Takahama nuclear power plant 2 | 826 | |
| Takahama nuclear power plant 3 | 870 |
Other M (3-loop) units
9 units worldwide share this model designation.
| Unit | Country | Status | Gross MW |
|---|---|---|---|
| Ikata nuclear power plant 3 | Japan | 890 | |
| Mihama nuclear power plant 3 | Japan | 826 | |
| Sendai nuclear power plant 1 | Japan | 890 | |
| Sendai nuclear power plant 2 | Japan | 890 | |
| Takahama nuclear power plant 1 | Japan | 826 | |
| Takahama nuclear power plant 2 | Japan | 826 | |
| Takahama nuclear power plant 3 | Japan | 870 | |
| Tomari nuclear power plant 3 | Japan | Mothballed | 912 |
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