ML23041A019

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Summary of the November 9, 2022, Partially Closed Meeting with Terrapower, LLC, to Discuss Instrumentation and Control (I&C) Systems and Cyber Security
ML23041A019
Person / Time
Site: 99902100
Issue date: 05/22/2023
From: Mallecia Sutton
NRC/NRR/DANU/UAL1
To: Proffitt J
NRC/NRR/DANU/UAL1
References
EPID L-2021-LRM-0071
Download: ML23041A019 (4)


Text

MEMORANDUM TO:

Joseph A. Proffitt, Acting Branch 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

SUBJECT:

SUMMARY

OF THE NOVEMBER 9, 2022, PARTIALLY CLOSED MEETING WITH TERRAPOWER, LLC, TO DISCUSS INSTRUMENTATION AND CONTROL SYSTEMS AND CYBERSECURITY (EPID NO. L-2021-LRM-0071)

Meeting Information:

Applicant: TerraPower, LLC (TerraPower)

Docket/Project No.(s): 99902100 Public Meeting Notice: Agencywide Documents Access and Management System Accession No. ML22293B832 Applicant Presentation Slides: ML22300A264, ML22300A265 (Proprietary)

Meeting Attendees: See the enclosure for a list of meeting attendees.

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).

CONTACT: Mallecia A. Sutton, NRR/DANU (301) 415-0673 May 22, 2023 Signed by Sutton, Mallecia on 05/22/23

J. Proffitt On November 9, 2022, the NRC staff held a partially closed public meeting with TerraPower to provide the NRC staff with an overview of the Instrumentation and Control (I&C) Systems and cybersecurity for the Natrium design. Participants included representatives from TerraPower, General Electric Hitachi, Bechtel, Duke Energy, and members of the general public. The enclosure provides the list of meeting attendees.

The NRC staff began the meeting with an introduction and explained that a portion of the meeting would be closed to the public to discuss proprietary information. During the public portion of the meeting, TerraPower provided an overview of the Natrium Instrumentation and Controls (I&C) regulatory framework, how the framework mapped to the I&C Design Review Guide: Instrumentation and Controls for Non-Light-Water Reactor (Non-LWR) Reviews and IEEE Std. 603-2018. TerraPower representatives discussed the Preliminary Safety Analysis Report (PSAR) structure for the I&C systems. TerraPower described how the PSAR content regarding I&C will deviate from the NEI 21-07, Technology Inclusive Guidance for Non-Light Water Reactor: Safety Analysis Report Content for Applicants Using the NEI 18-04 Methodology, Revision 1 format and instead use an alternative I&C regulatory framework which achieves greater alignment with the NRC I&C Design Review Guide. TerraPower also described how NEI 18-04, Risk-Informed Performance-Based Technology Inclusive Guidance for Non-Light Water Reactor Licensing Basic Development, as endorsed by Regulatory Guide (RG) 1.233, Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light Water Reactors, is used to develop the Natrium design and safety case. At the end of the presentation, the public had an opportunity to ask the NRC staff questions.

During the closed portion of the meeting, TerraPower provided additional details related to the I&C Systems and cybersecurity for the Natrium design. TerraPower representatives and the NRC staff discussed the next steps for future interactions regarding the Natrium Reactor design.

Enclosure:

List of Meeting Attendees

J. Proffitt

SUBJECT:

SUMMARY

OF THE NOVEMBER 9, 2022, PARTIALLY CLOSED MEETING WITH TERRAPOWER, LLC, TO DISCUSS INSTRUMENTATION AND CONTROL SYSTEMS AND CYBERSECURITY (EPID NO. L-2021-LRM-0071)

DATED: MAY 22, 2023 DISTRIBUTION:

PUBLIC RidsNrrDanuUal1 Resource RidsNrrDanuUal2 Resource RidsNrrDanu Resource MSutton, NRR CBanks, NRR CSmith, NRR AProffitt, NRR RAnzalone, NRR ADAMS Accession Number: ML23041A019 NRR-106 OFFICE NRR/DANU/UAL1/PM NRR/DANU/UAL1/PM NRR/DANU/UAL2/LA NAME CBanks MSutton CSmith DATE 2/13/2023 2/14/2023 05/18/2023 OFFICE NRR/DANU/UAL1/BC (A)

NRR/DANU/UAL1:PM NAME JProffitt MSutton DATE 5/19/2023 5/22/2023 OFFICIAL RECORD COPY

Enclosure List of Meeting Attendees Partially Closed Pre-Application Meeting with TerraPower, LLC to Discuss Instrumentation and Control (I&C) Systems and Cyber Security Public Meeting November 9, 2022 Name Organization Mallecia Sutton U.S. Nuclear Regulatory Commission (NRC)

Ralph Costello NRC Reed Anzalone NRC Courtney Banks NRC Joseph Ashcraft NRC Dan Warner NRC Ismael Garcia NRC Shiattin Makor NRC Calvin Cheung NRC Ryan Sprengel TerraPower LLC, TerraPower Tara Neider TerraPower Baofu Lu TerraPower Barry Westreich TerraPower Chris Hope TerraPower Ethan Graven TerraPower Mark Burzynski TerraPower Mike Montecalvo TerraPower Nick Kellenberger TerraPower Sean Kelley TerraPower Jerry Mills TerraPower Lisa Schichlein General Electric Hitachi (GE)

Lee Meek GEH Tim Enfinger GEH Steve Kline Bechtel Wayne Pettay Bechtel Lee Grzeck Duke