Peach Bottom Atomic Power Station Units 2 and 3 – Subsequent License Renewal: NRC subsequent licence renewal review for Exelon Generation Company, LLC and PSEG Nuclear, LLC (2020 issuance); Constellation Energy Generation, LLC (2025 restoration) — issued, 18.3 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 | Subsequent licence renewal |
| Outcome | Issued |
| Applicant | Exelon Generation Company, LLC and PSEG Nuclear, LLC (2020 issuance); Constellation Energy Generation, LLC (2025 restoration) |
| Facility | Peach Bottom Atomic Power Station (Peach Bottom 2, Peach Bottom 3) |
| Docket | 50-277, 50-278 |
| Submitted | 2018-07-10 |
| Docketed (accepted for review) | 2018-08-27 |
| NRC planned schedule | — |
| NRC target date | — |
| Final safety evaluation | 2019-11-19 |
| Decision | 2020-03-05 |
| Review time (docketed → decision) | 18.3 mo |
| Submitted → decision | 19.8 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
Contested: at issuance the FR notice said 'An NRC Atomic Safety and Licensing Board denied an intervention petition and terminated the adjudicatory proceeding. An appeal and motions related to a request to file a new contention are pending before the Commission.' Original review 2018-07-10 -> 2020-03-05. Second (environmental-only) review: licensee letter 2024-06-05 -> restoration decision 2025-09-30. The 2025-09-30 restoration date is from the NRC plant page only. NRC decision target: originally 2020-03, latest 2020-03. Schedule: Original SLR decision met its 03/2020 target. For the post-CLI-22 environmental re-review, NRC letter of Feb 28, 2025 set a March 2026 decision; letter of April 24, 2025 moved it to February 2026; actual 09/30/2025. Effective final decision 2025-09-30: Decision restoring the subsequent renewed license end dates (NRC page actual date). No FR notice or press release for the restoration was found.
Timeline
- 2018-07-10 — Application submitted. (source)
- 2018-08-27 — NRC letter: application acceptable for docketing. (source)
- 2018-09-06 — FR notice of acceptance and opportunity for hearing (83 FR 45285). (source)
- 2018-12-18 — FR notice establishing ASLB; hearing request by Beyond Nuclear, Inc. (source)
- 2019-11-19 — Final SER issued. (source)
- 2019-11-19 — Final safety evaluation issued. (source)
- 2020-01-27 — Final SEIS issued. (source)
- 2020-03-05 — Subsequent renewed licenses DPR-44 and DPR-56 issued. (source)
- 2020-03-05 — Issued. (source)
- 2022-02-24 — Commission orders CLI-22-02/CLI-22-03: expiration dates reset to end of initial period of extended operation. (source)
- 2024-06-05 — Licensee requests plan to complete environmental review and restore end dates. (source)
- 2025-01-07 — FR notice of intent to prepare supplement to final SEIS. (source)
- 2025-07-29 — Beyond Nuclear and Sierra Club file hearing request on draft supplement (ASLB established 2025-08-08). (source)
- 2025-08-22 — Final SEIS supplement published. (source)
- 2025-09-30 — Director, NRR decision restoring end dates (Aug 8, 2053 / July 2, 2054). (source)
The timeline is append-only: corrections are added as new entries. See the NNN Data License Terms for reuse of the event history.
Also tracked
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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- Edwin I. Hatch Nuclear Plant Units 1 and 2 – Subsequent License Renewal Issued · 11.9 mo
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- Dresden Nuclear Power Station Units 2 and 3 – Subsequent License Renewal Issued · 18.1 mo
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See all 75 reviews in the NRC Licensing Review Tracker →
Sources
- https://www.nrc.gov/licensing-applications/power-reactor-licensing/peach-bottom-atomic-power-station-units-2-3-subsequent-license-renewal-application
- https://www.federalregister.gov/documents/2018/08/01/2018-16402
- https://www.federalregister.gov/documents/2018/09/06/2018-19246
- https://www.federalregister.gov/documents/2020/03/11/2020-04941
- https://www.federalregister.gov/documents/2018/12/18/2018-27276
- https://www.federalregister.gov/documents/2025/08/08/2025-15044
- https://web.archive.org/web/20190420/https://www.nrc.gov/reactors/operating/licensing/renewal/applications/peach-bottom-subsequent.html
- https://www.nrc.gov/licensing-applications/operating-reactor-licensing/reactor-license-renewal/status-subsequent-license-renewal-applications