Low-confidence record: sources are thin or conflict. Figures below are the best available public statements, not confirmed facts.
Shikoku Electric retired Ikata 1 (2016) and Ikata 2 (2018), both 538 MWe PWRs, rather than pay for post-Fukushima upgrades, and is decommissioning them in four stages over about 40 years. Ikata 3 continues to operate on the same site.
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Current state
| Status | Active dismantling |
| Country | Japan |
| Location | Ikata, Ehime Prefecture |
| Site | Ikata |
| Units | Unit 1, Unit 2 |
| Unit count | 2 |
| Reactor types | PWR |
| Net capacity (MWe) | 1,076 |
| Owner / licensee | Shikoku Electric Power |
| Strategy | Immediate dismantling |
| Final shutdown | 2018 |
| Notable issue | Upgrades of more than JPY 170bn would have been needed to run Ikata 1 beyond 40 years. |
Notes
Ikata 2 plan approval year (2020) from WNN headline in search results, not article text. Current stage of work not confirmed; status could be planning/early dismantling.
Timeline
- 2016-03 — Shikoku decided to decommission Ikata 1. (source)
- 2018-03-27 — Shikoku announced it would also decommission Ikata 2. (source)
- 2020 — The NRA approved the Ikata 2 decommissioning plan. (source)
The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.
Related sites
- Biblis Nuclear Power Plant (Units A and B) Active dismantling · Germany
- Brokdorf Nuclear Power Plant (KBR) Active dismantling · Germany
- Brunsbüttel Nuclear Power Plant (KKB) Active dismantling · Germany
- Chinshan Nuclear Power Plant Fuel removal · Taiwan
- Chooz A Active dismantling · France
- Crystal River Unit 3 Site restoration · United States
- Doel Nuclear Power Plant (Units 1-3) Shut down · Belgium
- Dounreay (DFR and PFR fast reactors) Active dismantling · United Kingdom
See all 72 sites in the Nuclear Decommissioning Tracker →
Sources
- Shikoku decides to retire Ikata 2 — World Nuclear News, checked 2026-10-11
- Regulator approves Ikata 2 decommissioning plan — World Nuclear News, checked 2026-10-11
- Shikoku outlines decommissioning plan for Ikata-2 — Enerdata, checked 2026-10-11
- Nuclear Power in Japan — World Nuclear Association, checked 2026-10-11