Shimane
Shimane, nuclear power plant in Japan, operates one boiling water reactor with 789 MW net installed capacity and has been in service since 1974.
Unit Shimane 2 has been operating for 37 years, since 1989. Shimane 3 is under construction. Its 789 MW net are enough to supply about 2,490,000 households.
- Country
- Japan
- Units
- 3
- Technology
- BWR
- Net capacity
- 789 MWe
- First grid connection
- 1974
- Operator
- The Chugoku Electric Power
- Owner
- The Chugoku Electric Power Co Inc
- Status
- Operating
See also: alerts for this plant · every plant in Japan · Vendor: Hitachi · every BWR reactor · how a BWR works

Units
| Unit | Type | Model | Status | MWe | MWt | Construction start | Grid connection | Closure | Load factor |
|---|---|---|---|---|---|---|---|---|---|
| Shimane 1 | Boiling water (BWR) | BWR-3 | Shut down | 439 | 1,380 | Jul 1970 | Dec 1973 | Apr 2015 | — |
| Shimane 2 | Boiling water (BWR) | BWR-5 | Operating | 789 | 2,436 | Feb 2, 1985 | Jul 11, 1988 | — | 38.6 % (2024) |
| Shimane 3 | Boiling water (BWR) | ABWR | Under construction | 1,325 | 3,926 | Oct 2006 | — | — | — |
Data: IAEA PRIS · Wikipedia · updated on Sep 17, 2026
Shimane 1, a 439 MWe BWR (BWR-3), started construction in 1970 and operated from 1973 to 2015.
Shimane 2, a 789 MWe BWR (BWR-5), started construction in 1985, was connected to the grid in 1988 and is still operating, with a 38.6% load factor in 2024.
Shimane 3, a 1,325 MWe BWR (ABWR), has been under construction since 2006.
Operator: The Chugoku Electric Power.
Owner: The Chugoku Electric Power Co Inc (Shimane 1, Shimane 2, Shimane 3).