Kashiwazaki Kariwa
TEPCO·Kashiwazaki-shi, Niigata
Reactor Data
Reactor Units
Every power reactor at this site as listed in the IAEA Power Reactor Information System (PRIS): reactor type and model, net electrical capacity, grid connection and commercial operation dates, and current status.
7 units: 7 suspended operation.
Net capacity in service: 7,965 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Kashiwazaki Kariwa 1 | BWR | BWR-5 | 1,067 | 1980-06-05 | 1985-02-13 | 1985-09-18 | Suspended Operation | |
| Kashiwazaki Kariwa 5 | BWR | BWR-5 | 1,067 | 1985-06-20 | 1989-09-12 | 1990-04-10 | Suspended Operation | |
| Kashiwazaki Kariwa 2 | BWR | BWR-5 | 1,067 | 1985-11-18 | 1990-02-08 | 1990-09-28 | Suspended Operation | |
| Kashiwazaki Kariwa 3 | BWR | BWR-5 | 1,067 | 1989-03-07 | 1992-12-08 | 1993-08-11 | Suspended Operation | |
| Kashiwazaki Kariwa 4 | BWR | BWR-5 | 1,067 | 1990-03-05 | 1993-12-21 | 1994-08-11 | Suspended Operation | |
| Kashiwazaki Kariwa 6 | BWR | ABWR | 1,315 | 1992-11-03 | 1996-01-29 | 1996-11-07 | Suspended Operation | |
| Kashiwazaki Kariwa 7 | BWR | ABWR | 1,315 | 1993-07-01 | 1996-12-17 | 1997-07-02 | Suspended Operation |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Kashiwazaki Kariwa 1 | 1,067 | 1,100 | 3,293 | 1984-12-12 | TOSHIBA CORPORATION | TOSHIBA CORPORATION | Suspended 2011-08-06 |
| Kashiwazaki Kariwa 5 | 1,067 | 1,100 | 3,293 | 1989-07-20 | HITACHI, LTD. | HITACHI, LTD. | Suspended 2012-01-25 |
| Kashiwazaki Kariwa 2 | 1,067 | 1,100 | 3,293 | 1989-11-30 | TOSHIBA CORPORATION | TOSHIBA CORPORATION | Suspended 2007-07-05 |
| Kashiwazaki Kariwa 3 | 1,067 | 1,100 | 3,293 | 1992-10-19 | TOSHIBA CORPORATION | TOSHIBA CORPORATION | Suspended 2007-09-19 |
| Kashiwazaki Kariwa 4 | 1,067 | 1,100 | 3,293 | 1993-11-01 | HITACHI, LTD. | HITACHI, LTD. | Suspended 2008-02-11 |
| Kashiwazaki Kariwa 6 | 1,315 | 1,356 | 3,926 | 1995-12-18 | TOSHIBA CORPORATION | GENERAL ELECTRIC CO. | Suspended 2012-03-26 |
| Kashiwazaki Kariwa 7 | 1,315 | 1,356 | 3,926 | 1996-11-01 | HITACHI, LTD. | GENERAL ELECTRIC CO. | Suspended 2011-08-23 |
Lifetime performance, through 2025
| Unit | Electricity Supplied | Load Factor | Energy Availability | Operating Factor |
|---|---|---|---|---|
| Kashiwazaki Kariwa 1 | 160.1 TWh | 65.0% | 65.7% | 66.1% |
| Kashiwazaki Kariwa 5 | 137.0 TWh | 66.0% | 66.5% | 66.8% |
| Kashiwazaki Kariwa 2 | 120.9 TWh | 74.0% | 74.8% | 75.1% |
| Kashiwazaki Kariwa 3 | 100.3 TWh | 73.5% | 74.2% | 74.4% |
| Kashiwazaki Kariwa 4 | 91.9 TWh | 70.4% | 71.0% | 71.3% |
| Kashiwazaki Kariwa 6 | 133.6 TWh | 73.0% | 72.1% | 72.3% |
| Kashiwazaki Kariwa 7 | 116.4 TWh | 69.7% | 69.1% | 69.9% |
Operator: Tokyo Electric Power Company Holdings, Inc.
Owner: Tokyo Electric Power Company Holdings, Inc.
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-14.
Working Here
Per Diem Rates FY 2026
Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from the U.S. State Department foreign per diem tables for FY 2026.
$208
Lodging/Night
$107
M&IE/Day
$315
Total/Day
Japan: rate for locations the State Department does not list separately
U.S. Department of State foreign per diem, for U.S. government and contractor travel.
Photos
Photos of this facility from the NukeWorker photo gallery. Click the header or any photo to browse the full album.
Facility Map
Interactive satellite map showing the facility's geographic location. Marker color indicates current status: green for online, red for offline, orange for reduced power. Click the header to open in Google Maps satellite view.
37.4283, 138.602
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Plant Facts
Ownership & Construction
The utility or company that owns and operates the facility, the architect-engineer responsible for plant design, and the primary construction contractor. Click names to view all facilities by that entity on the map.
Owner/Operator:
TEPCO