Hamaoka-cho
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.
5 units: 3 suspended operation, 2 permanent shutdown.
Net capacity in service: 3,473 MWe.
| Unit | Type | Model | Net MWe | Construction | Grid | Commercial Op | Shutdown | Status |
|---|---|---|---|---|---|---|---|---|
| Hamaoka 1 | BWR | BWR-4 | 515 | 1971-06-10 | 1974-08-13 | 1976-03-17 | 2009-01-30 | Permanent Shutdown |
| Hamaoka 2 | BWR | BWR-4 | 806 | 1974-06-14 | 1978-05-04 | 1978-11-29 | 2009-01-30 | Permanent Shutdown |
| Hamaoka 3 | BWR | BWR-5 | 1,056 | 1983-04-18 | 1987-01-20 | 1987-08-28 | Suspended Operation | |
| Hamaoka 4 | BWR | BWR-5 | 1,092 | 1989-10-13 | 1993-01-27 | 1993-09-03 | Suspended Operation | |
| Hamaoka 5 | BWR | ABWR | 1,325 | 2000-07-12 | 2004-04-30 | 2005-01-18 | Suspended Operation |
Capacity, milestones and suppliers
| Unit | Design MWe | Gross MWe | Thermal MWt | First Criticality | Reactor Supplier | Turbine Supplier | Notes |
|---|---|---|---|---|---|---|---|
| Hamaoka 1 | 516 | 540 | 1,593 | 1974-06-20 | TOSHIBA CORPORATION | HITACHI, LTD. | Decommissioning from 2009-11-18 |
| Hamaoka 2 | 814 | 840 | 2,436 | 1978-03-28 | TOSHIBA CORPORATION | HITACHI, LTD. | Decommissioning from 2009-11-18 |
| Hamaoka 3 | 1,056 | 1,100 | 3,293 | 1986-11-21 | TOSHIBA CORPORATION | HITACHI, LTD. | Suspended 2010-11-29 |
| Hamaoka 4 | 1,092 | 1,137 | 3,293 | 1992-12-02 | TOSHIBA CORPORATION | HITACHI, LTD. | Suspended 2011-05-13 |
| Hamaoka 5 | 1,325 | 1,380 | 3,926 | 2004-03-23 | TOSHIBA CORPORATION | HITACHI, LTD. | Suspended 2011-05-14 |
Operator: CHUBU ELECTRIC POWER CO., INC.
Owner: CHUBU ELECTRIC POWER CO., INC.
Source: IAEA Power Reactor Information System (PRIS), as of 2026-10-12.
Working Here
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.
34.6213, 138.143
Location & Contact
Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.