ML23045A158

Summary of the October 25, 2022, Closed Meeting with Terrapower, LLC, Pre-Application Meeting to Discuss the Spent Fuel Subcriticality on the Natrium Plant Design

ML23045A158
Person / Time
Site:	99902100
Issue date:	08/21/2023
From:	Mallecia Sutton NRC/NRR/DANU/UAL1
To:	Jessup W NRC/NRR/DANU/UAL1
References
EPID L-2021-LRM-0071
Download: ML23045A158 (4)

Text

MEMORANDUM TO:

William T. Jessup, Chief Advanced Reactor Licensing Branch 1 Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation FROM:

Mallecia A. Sutton, Senior Project Manager Advanced Reactor Licensing Branch 1 Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation

SUMMARY

OF THE OCTOBER 25, 2022, CLOSED PRE-APPLICATION MEETING WITH TERRAPOWER, LLC, TO DISCUSS SPENT FUEL SUBCRITICALITY FOR THE NATRIUM REACTOR DESIGN (EPID NO. L-2021-LRM-0071)

Meeting Information:

Applicant: TerraPower, LLC Docket/Project No.: 99902100 Public Meeting Notice: Agencywide Documents Access and Management System (ADAMS)

Accession No.: ML22278A163 Applicant Presentation Slides: ML22293B830 Meeting Attendees: See enclosure for the list of meeting attendees.

CONTACT: Mallecia A. Sutton, NRR/DANU (301) 415-0673 August 21, 2023 Signed by Sutton, Mallecia on 08/21/23

W. Jessup 2

The U.S. Nuclear Regulatory Commission (NRC) staff conducted the meeting in accordance with NRC Management Directive 3.5, Attendance at NRC Staff-Sponsored Meetings (ML21180A271). Highlights of the meeting include the following:

On October 25, 2022, the NRC staff held a closed meeting with TerraPower, LLC (TerraPower). The purpose of the meeting was for TerraPower to discuss spent fuel subcriticality as it relates to the Natrium reactor design. Participants included representatives from TerraPower and General Electric Hitachi. The enclosure provides a list of meeting attendees.

The NRC staff began the meeting with an introduction and explained that the meeting would be closed due to the discussion of proprietary information. During the meeting, TerraPower provided the NRC staff with an overview of the Natrium reactor design and an overview of the Natriums fuel handling systems, Upper Supercritical Limit Methodology and the Natrium Subcriticality Analysis.

The NRC staff and TerraPower representatives discussed the next steps for future interactions regarding the Natrium reactor design.

Enclosure:

List of Meeting Attendees

W. Jessup 3

SUMMARY

OF THE OCTOBER 25, 2022, CLOSED PRE-APPLICATION MEETING WITH TERRAPOWER, LLC, TO DISCUSS SPENT FUEL SUBCRITICALITY FOR THE NATRIUM REACTOR DESIGN (EPID NO. L-2021-LRM-0071) DATED: AUGUST 21, 2022 DISTRIBUTION:

PUBLIC RidsNrrDanuUal1 Resource RidsNrrDanu Resource MSutton, NRR CBanks, NRR RBrusselmans, NRR SDevlin-Gill, NRR WJessup, NRR DGreene, NRR ADAMS Accession Number: ML23045A158 NRR-106 OFFICE NRR/DANU/UAL1/PM NRR/DANU/UAL1/PM NRR/DANU/UAL1/BC NRR/DANU/UAL1/PM NAME CBanks MSutton WJessup MSutton DATE 7/27/2023 7/27/2023 8/11/2023 8/21/2023 OFFICIAL RECORD COPY

Enclosure List of Meeting Attendees Closed Pre-Application Meeting with TerraPower, LLC to Discuss Spent Fuel Subcriticality for the Natrium Reactor October 25, 2022 Name Organization Mallecia Sutton U.S. Nuclear Regulatory Commission (NRC)

Reed Anzalone NRC Steve Jones NRC Zackery Helgert NRC Chris Van Wert NRC Courtney Banks NRC Ryan Sprengel TerraPower, LLC (TerraPower)

Jacob Hader TerraPower James Vollmer TerraPower Matthew Mareka TerraPower Mike Montecalvo TerraPower Stacy Gillin TerraPower Tim Glennon TerraPower Dominic Napolitano TerraPower Rick Migliore TerraPower Sam Miller TerraPower Mark Onufer TerraPower Bryan Eyers TerraPower Tara Neider TerraPower Lisa Schichlein General Electric Hitachi (GEH)

Tim Enfinger GEH