Grohnde, a PWR on the Weser shut on 31 December 2021, has been in dismantling since January 2024. It became fuel-free in April 2026 and received its second and final dismantling permit in May 2026; PreussenElektra targets completion by 2039.
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Current state
| Status | Active dismantling |
| Country | Germany |
| Location | Emmerthal, Lower Saxony |
| Site | Grohnde |
| Units | KWG |
| Unit count | 1 |
| Reactor types | PWR |
| Net capacity (MWe) | 1,360 |
| Owner / licensee | PreussenElektra (E.ON) |
| Strategy | Immediate dismantling |
| Final shutdown | 2021-12-31 |
| Decommissioning start | 2024-01 |
| Target completion | 2039 |
| Spent fuel | All fuel in CASTOR casks at the on-site Grohnde interim store since 7 April 2026. |
| Notable issue | Reactor vessel internals cutting is scheduled to start in early 2027. |
Timeline
- 2021-12-31 — Grohnde ended power operation. (source)
- 2023-12 — The decommissioning and first dismantling permit was granted. (source)
- 2024-01 — Dismantling work began. (source)
- 2026-04-07 — The last CASTOR cask moved to the on-site interim store, making the plant fuel-free. (source)
- 2026-05-15 — PreussenElektra received the second and final dismantling permit, covering the reactor vessel and biological shield. (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
- Kernkraftwerk Grohnde erhält zweite und letzte Rückbaugenehmigung — PreussenElektra (primary), checked 2026-10-11
- Permit issued for second phase of Grohnde dismantling work — World Nuclear News, checked 2026-10-11
- Nuclear Power in Germany — World Nuclear Association, checked 2026-10-11