Clinton Power Station Unit 1 – License Renewal: NRC licence renewal review for Constellation Energy Generation, LLC — issued, 20.2 months from docketing to decision. Sourced dates and schedule.
Background: NRC reactor licensing process, explained · The ADVANCE Act, explained: what changed and where the NRC stands
Current state
| Type | Licence renewal |
| Outcome | Issued |
| Applicant | Constellation Energy Generation, LLC |
| Facility | Clinton Power Station (Clinton 1) |
| Docket | 50-461 |
| Submitted | 2024-02-14 |
| Docketed (accepted for review) | 2024-04-11 |
| NRC planned schedule | — |
| NRC target date | 2025-10-09 |
| Final safety evaluation | 2025-08-29 |
| Decision | 2025-12-16 |
| Review time (docketed → decision) | 20.2 mo |
| Submitted → decision | 22.0 mo |
| NRC-reported review duration | — |
| NRC-reported resources vs estimate | — |
Review time is measured in average months from the date the NRC docketed the application to the decision. The NRC's own reported durations may measure to the final safety evaluation instead.
Notes
Aug 7, 2025 letter cut the estimate to ~12,050 h (from 10,000 safety + 7,000 environmental); it does not cite EO 14300. Issued ~2 months after the accelerated target; fetched sources give no reason. No FR notice establishing a Licensing Board was found for this application in an FR API search. NRC decision target: originally 2025-12, latest 2025-10-09. Schedule: Original schedule (issued with Apr 11, 2024 acceptance letter) targeted 12/2025; Aug 7, 2025 letter accelerated it to 10/9/2025 citing 'several staff efficiencies'; actual 12/16/2025.
Timeline
- 2024-02-14 — Application submitted. (source)
- 2024-04-11 — NRC letter: acceptable for docketing; projected schedule issued. (source)
- 2024-04-18 — FR notice of acceptance and opportunity to request a hearing. (source)
- 2025-08-01 — Final SEIS issued. (source)
- 2025-08-07 — Revised schedule letter (decision 10/9/2025). (source)
- 2025-08-29 — Safety evaluation issued. (source)
- 2025-08-29 — Final safety evaluation issued. (source)
- 2025-12-16 — Renewed license NPF-62 issued. (source)
- 2025-12-16 — Issued. (source)
The timeline is append-only: corrections are added as new entries. See the NNN Data License Terms for reuse of the event history.
NNN coverage
About Constellation Energy
- The 6 nuclear stories that mattered this week 2026-10-10
- Google, Constellation plan 890 MW in nuclear uprates 2026-10-07
- Nuclear power for data centers, explained: every deal tracked 2026-10-01
- DOE nuclear funding, explained: every program paying for the buildout 2026-08-05
- NNN Daily Brief — July 22, 2026 2026-07-22
- The nuclear decommissioning market in 2026: size, players, pipeline 2026-07-14
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Sources
- https://www.nrc.gov/licensing-applications/power-reactor-licensing/clinton-power-station-unit-1-license-renewal-application
- https://www.nrc.gov/docs/ML2520/ML25202A071.pdf
- https://www.federalregister.gov/documents/2024/03/07/2024-04811
- https://www.federalregister.gov/documents/2024/04/18/2024-08260
- https://www.federalregister.gov/documents/2025/12/19/2025-23462
- https://www.nrc.gov/sites/default/files/cdn/doc-collection-news/2025/25-066.pdf
- https://web.archive.org/web/20240907/https://www.nrc.gov/reactors/operating/licensing/renewal/applications/clinton.html
- https://www.nrc.gov/licensing-applications/status-initial-license-renewal-applications-and-industry-initiatives