ML23072A476

Summary of the January 26, 2023, Open Observation, Pre-Application Meeting with Terrapower, LLC, to Discuss the Seismic Analysis Approach for the Natrium Design

ML23072A476
Person / Time
Site:	99902100
Issue date:	05/17/2023
From:	Mallecia Sutton NRC/NRR/DANU/UAL1
To:	Proffitt J NRC/NRR/DANU/UAL1
Banks C
References
EPID L-2021-LRM-0071
Download: ML23072A476 (4)

Text

MEMORANDUM TO:

J. Andrew Proffitt, Acting Chief Advanced Reactor Licensing Branch 1 Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation FROM:

Mallecia 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 JANUARY 26, 2023, OPEN OBSERVATION, PRE-APPLICATION MEETING WITH TERRAPOWER, LLC, TO DISCUSS THE SEISMIC ANALYSIS APPROACH FOR THE NATRIUM DESIGN (EPID NO. L-2021-LRM-0071)

Meeting Information:

Applicant: TerraPower, LLC (TerraPower)

Docket/Project No.(s): 99902100 EPID: L-2021-LRM-0071 Meeting Date: January 26, 2023 Meeting Type: Open Observation Public Meeting Notice Agencywide Documents Access and Management System (ADAMS)

Accession No.: ML23026A049 Applicant Presentation Slides ADAMS Accession No.: ML23025A133 Meeting Attendees: See enclosure for list of meeting attendees.

CONTACT: Mallecia A. Sutton, NRR/DANU 301-415-0673 May 17, 2023 Signed by Sutton, Mallec on 05/17/23

J. Proffitt Meeting Summary:

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). The main points of discussion during the meeting included:

On January 26, 2023, the NRC staff held a public meeting with TerraPower for an overview of the Preliminary Safety Analysis Report Seismic Analysis and Seismic SSC Classification Approach. Participants included representatives from TerraPower, General Electric Hitachi, Bechtel, Duke Energy, Simpson Gumpertz & Heger Inc. and members of the general public. The enclosure provides the list of meeting attendees.

The NRC staff began the public meeting with introductions and an explanation of logistical information. During the meeting, TerraPower representatives described a phased seismic analysis approach (preliminary and final) that corresponds to design phases with appropriate level of maturity. The discussion also included how the seismic soil structure interaction analysis reflects preliminary seismic analysis and design, consistent with applicable regulations in section 50.34 of Title 10 of the Code of Federal Regulations (10 CFR), Contents of applications; technical information and 10 CFR Part 50, Appendix S, Earthquake Engineering Criteria for Nuclear Power Plants, to support the Preliminary Safety Analysis Report.

At the end of the presentation, the public had an opportunity to ask questions of the NRC staff. TerraPower representatives and the NRC staff discussed the next steps for future interactions regarding the Natrium Reactor design.

Project No: 99902100

Enclosure:

List of Meeting Attendees

J. Proffitt

SUMMARY

OF JANUARY 26, 2023, OPEN OBSERVATION PRE-APPLICATION MEETING WITH TERRAPOWER, LLC, TO DISCUSS THE SEISMIC ANALYSIS APPROACH FOR THE NATRIUM DESIGN (EPID NO. L-2021-LRM-0071) DATE: 17 MAY, 2023 DISTRIBUTION:

PUBLIC RidsNrrDanuUal1 Resource RidsNrrDanuUal2 Resource RidsNrrDanu Resource MSutton, NRR JProffitt, NRR CBanks, NRR ADAMS Accession Number: [ML23072A476]

NRC-001 OFFICE NRR/DANU/UAL1/PM NRR/DANU/UAL1/PM NRR/DANU/UAL1/LA NRR/DANU/UAL1/BC NAME CBanks MSutton DGreene JProffitt DATE 3/20/2023 4/19/2023 5/16/2023 5/17/2023 OFFICE NRR/DANU/UAL1/PM NAME MSutton DATE 5/17/2023 OFFICIAL RECORD COPY

Enclosure List of Meeting Attendees Open Observation to Discuss Seismic Analysis Approach for the Natrium Design January 26, 2023 Name Organization Mallecia Sutton U.S. Nuclear Regulatory Commission (NRC)

Courtney Banks NRC Chakrapani Basavarju NRC Candance de Messieres NRC George Thomas NRC Kamal Manoly NRC Reed Anzalone NRC Jose Pires NRC Scott Stovall NRC Ryan Sprengel TerraPower, LLC Brian Johnson TerraPower Huy Tran TerraPower Jeff Robertson TerraPower Jim Gleason TerraPower Lindsay Martin TerraPower Marc Hotchkiss TerraPower Mike Montecalvo TerraPower Tara Neider TerraPower Todd Radford TerraPower James Nevins General Electric Hitachi (GEH)

Jonathon Li GEH Lisa Schichlein GEH Partha Chandran GEH Tim Enfinger GEH Steve Kline Bechtel Ben Kosbab Simpson, Gumpertz & Heger Inc.