Japan · 37.426, 138.594Kashiwazaki Kariwa
Kashiwazaki Kariwa, nuclear power plant in Japan, operates one boiling water reactor with 1,315 MW net installed capacity and has been in service since 1985. 6 more units have their operation suspended.
It is the highest-capacity nuclear plant in Japan. Unit Kashiwazaki Kariwa 1 has been operating for 41 years, since 1985. Its 7,965 MW net are enough to supply about 25,100,000 households.
- Country
- Japan
- Units
- 7
- Technology
- BWR
- Net capacity
- 1,315 MWe
- First grid connection
- 1985
- Operator
- Tokyo Electric Power
- Owner
- Tokyo Electric Power Co
- Status
- Operating
See also: alerts for this plant · every plant in Japan · Vendor: Toshiba · Vendor: Hitachi · every BWR reactor · how a BWR works
Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Kashiwazaki Kariwa 1 | Boiling water (BWR) | BWR-5 | Offline, no restart pending | 1,067 | 3,293 | Jun 1980 | Feb 1985 | — | — |
| Kashiwazaki Kariwa 2 | Boiling water (BWR) | BWR-5 | Offline, no restart pending | 1,067 | 3,293 | Nov 1985 | Feb 1990 | — | — |
| Kashiwazaki Kariwa 3 | Boiling water (BWR) | BWR-5 | Offline, no restart pending | 1,067 | 3,293 | Mar 1989 | Dec 1992 | — | — |
| Kashiwazaki Kariwa 4 | Boiling water (BWR) | BWR-5 | Offline, no restart pending | 1,067 | 3,293 | Mar 1990 | Dec 1993 | — | — |
| Kashiwazaki Kariwa 5 | Boiling water (BWR) | BWR-5 | Offline, no restart pending | 1,067 | 3,293 | Jun 1985 | Sep 1989 | — | — |
| Kashiwazaki Kariwa 6 | Boiling water (BWR) | ABWR | Operating | 1,315 | 3,926 | Nov 1992 | Jan 1996 | — | — |
| Kashiwazaki Kariwa 7 | Boiling water (BWR) | ABWR | Offline, awaiting restart | 1,315 | 3,926 | Jul 1993 | Dec 1996 | — | — |
Data: IAEA PRIS · Wikipedia · editorial review · updated on Sep 21, 2026
Kashiwazaki Kariwa 1, a 1,067 MWe BWR (BWR-5), started construction in 1980, was connected to the grid in 1985 and is currently suspended.
Kashiwazaki Kariwa 2, a 1,067 MWe BWR (BWR-5), started construction in 1985, was connected to the grid in 1990 and is currently suspended.
Kashiwazaki Kariwa 3, a 1,067 MWe BWR (BWR-5), started construction in 1989, was connected to the grid in 1992 and is currently suspended.
Kashiwazaki Kariwa 4, a 1,067 MWe BWR (BWR-5), started construction in 1990, was connected to the grid in 1993 and is currently suspended.
Kashiwazaki Kariwa 5, a 1,067 MWe BWR (BWR-5), started construction in 1985, was connected to the grid in 1989 and is currently suspended.
Kashiwazaki Kariwa 6, a 1,315 MWe BWR (ABWR), started construction in 1992, was connected to the grid in 1996 and is still operating.
Kashiwazaki Kariwa 7, a 1,315 MWe BWR (ABWR), started construction in 1993, was connected to the grid in 1996 and is currently suspended.
Operator: Tokyo Electric Power.
Owner: Tokyo Electric Power Co (Kashiwazaki Kariwa 1, Kashiwazaki Kariwa 2, Kashiwazaki Kariwa 3, Kashiwazaki Kariwa 4, Kashiwazaki Kariwa 5, Kashiwazaki Kariwa 6, Kashiwazaki Kariwa 7).