Kuosheng 1 is a 985 MWe (net) Taipower BWR-6 shut in 2021. In December 2025 Taiwan's economy ministry judged a Kuosheng restart feasible after overhaul, but Taipower has prioritised Maanshan and no Kuosheng restart approval has been reported.
Background: Palisades fuel loading: Holtec restart timeline and what comes next · NRC reactor licensing process, explained
Current state
| Status | Proposed |
| Country | Taiwan |
| Location | Wanli, New Taipei City |
| Plant | Kuosheng |
| Unit | 1 |
| Operator | Taiwan Power Company (Taipower) |
| Reactor type | BWR |
| Net capacity (MWe) | 985 |
| Restart type | Policy reversal |
| Shut down | 2021-07 |
| Years offline | 5.2 |
| Regulator | No Nuclear Safety Commission restart approval; Ministry of Economic Affairs assessment (Dec 2025) found 'conditions for re-operation' |
Notes
MOEA said the power generation system had been idle for over two years and needs overhaul. Whether Taipower has filed a Kuosheng restart plan with the NSC could not be confirmed; March 2026 filing covered Maanshan.
Timeline
- 2021-07 — Kuosheng 1 was shut down early because its used-fuel pool was full. (source)
- 2025-05 — The Legislative Yuan amended the Nuclear Reactor Facilities Regulation Act to allow licence renewals of up to 20 years. (source)
- 2025-12 — The Ministry of Economic Affairs approved Taipower's assessment finding a Kuosheng restart feasible, while ruling out Chinshan. (source)
The timeline is append-only: corrections are added as new entries. Stated targets appear in the current-state table, never as milestones.
Also tracked
Related units
- Armenian NPP Unit 2 (Metsamor 2) Restarted · AM
- Kuosheng Unit 2 (Second Nuclear Power Plant) Proposed · Taiwan
- Maanshan Unit 1 (Third Nuclear Power Plant) Under review · Taiwan
- Maanshan Unit 2 (Third Nuclear Power Plant) Under review · Taiwan
See all 45 units in the Nuclear Plant Restarts Tracker →
Sources
- Taiwan clears path to restart reactors — Nuclear Engineering International, checked 2026-10-11
- Nuclear Power in Taiwan — World Nuclear Association, checked 2026-10-11
- Taipower applies to restart Maanshan plant — World Nuclear News, checked 2026-10-11