Kairos Hermes test reactor construction permit

Kairos Hermes test reactor construction permit: NRC construction permit review for Kairos Power LLC — issued, 24.5 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

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

Non-power test reactor licensed under 10 CFR 50 (section 104c). FEIS finalized 08/17/2023. NRC's executed months (18) appear to measure the safety review (docketing 11/2021 to FSE 06/2023 is ~18.5 months), not to permit issuance. Submitted: Phased: PSAR submitted 9/29/2021; Environmental Report submitted 10/31/2021. NRC milestone table lists 'Application Tendered 10/31/2021 - A*' with footnote '*Safety Preliminary Safety Evaluation Report (PSAR) submitted 9/29/2021. Environmental Report Submitted 10/31/21' (https://www.nrc.gov/licensing-applications/non-power-facilities/new-facility-licensing/hermes-kairos-application). Docketed: NRC page: 'Docketing Decision Letter Issued/Acceptance Review Complete 11/29/2021 - A'; schedule letter issued 12/15/2021. Decision: NRC project page milestone table lists '_Construction Permit Decision_ 12/12/2023 - A'; project overview and FR both say issued December 14, 2023.

Timeline

• 2021-09-29 — Application received: “The application for the construction permit was received on September 29, 2021.” (source)
• 2021-11-29 — Accepted for review (docketed): “This action becomes effective on November 29, 2021.” (source)
• 2023-06-13 — Final safety evaluation issued. (source)
• 2023-10-19 — Commission mandatory hearing. (source)
• 2023-12-14 — Issued: “The Construction Permit No. CPTR-6 was issued on December 14, 2023.” (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

• hermes-1 in the Reactor Project Tracker

NNN coverage

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Sources

1. https://www.nrc.gov/licensing-applications/non-power-facilities/new-facility-licensing/hermes-kairos-application
2. https://www.federalregister.gov/d/2021-23568
3. https://www.federalregister.gov/d/2021-26119
4. https://www.federalregister.gov/d/2023-19006
5. https://www.federalregister.gov/d/2023-27960
6. https://www.nrc.gov/docs/ML2333/ML23338A258.pdf
7. https://www.nrc.gov/regulations-legislation/effectiveness-efficiency-and-timeliness-initiatives-that-support-unleashing-american-energy/licensing-efficiencies