ML21285A284

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Summary of Public Meeting with Terrapower, LLC to Discuss the Engineering Computer Codes for the Natrium Reactor Design
ML21285A284
Person / Time
Issue date: 12/10/2021
From: Mallecia Sutton
NRC/NRR/DANU/UARL
To: William Kennedy
NRC/NRR/DANU/UARL
Sutton M
References
Download: ML21285A284 (5)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20555-0001 November 29, 2021 MEMORANDUM TO: William Kennedy, Acting Chief Advanced Reactor Licensing Branch Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation Signed by Sutton, Mall FROM: Mallecia Sutton, Senior Project Manager on 11/29/21 Advanced Reactor Licensing Branch Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation

SUBJECT:

SUMMARY

OF THE AUGUST 31, 2021, PUBLIC MEETING WITH TERRAPOWER, LLC TO DISCUSS THE ENGINEERING COMPUTER CODES FOR THE NATRIUM REACTOR DESIGN On August 31, 2021, the U.S. Nuclear Regulatory Commission (NRC) staff held an observation public meeting with TerraPower, LLC (TerraPower) to discuss its Engineering Computer Codes for the Natrium Reactor design. Participants included personnel from the NRC, Terrapower, General Electric Hitatchi, Bechtel, PacifiCorp and members of the public.

The public meeting notice, dated August 31, 2021, can be found in the Agencywide Documents Access and Management System (ADAMS) under accession number ML21243A277. The meeting notice was also posted on the NRCs public website. The presentation slides can be found in ADAMS under accession number ML21239A164. The list of meeting attendees is provided as an enclosure.

The NRC staff began the public meeting with an introduction and pertaining logistical information. The NRC staff explained that the meeting was an observation meeting and that TerraPower representatives would provide the NRC staff with an overview of any expected Natrium engineering computer codes. The NRC staff also explained that a portion of the meeting would be closed to the public. During the public portion of the meeting, TerraPower discussed the engineering computer programs selection basis and the methodology maturation elements. At the end of the presentation, the public had an opportunity to ask questions. The NRC staff asked for feedback, concerns, and any improvements that can be made to the public meeting process, at the closure of the meeting.

CONTACT: Mallecia Sutton, NRR/DANU 301-415-0673

W. Kennedy During the closed portion of the meeting, TerraPower representatives and the NRC staff discussed the engineering computer programs selection basis and the methodology maturation elements including the analytical approaches developed and used by TerraPower as well as the processes that are being put in place to support the maturation of methodologies for the Natrium design. The meeting concluded with a discussion for future pre-application engagement activities regarding the Natrium design.

Enclosure:

List of Attendees

ML21285A284 NRR-106 OFFICE NRR/DANU/UARL:PM NRR/DANU/UARL:LA NRR/DANU/UARL:BC(A) NRR/DANU/UARL:PM NAME MSutton CSmith WKennedy MSutton DATE 10/6/2021 11/23/2021 11/29/2021 11/29/2021 List of Attendees Tuesday, August 31, 2021 1:00 p.m. - 4:00 p.m.

List of Attendees Name Organization Mallecia Sutton U.S. Nuclear Regulatory Commission (NRC)

William Kennedy NRC Hanh Phan NRC Timothy Drzewiecki NRC Alexandra Siwy NRC Michael Orenak NRC Michelle Hart NRC Patricia Vokoun NRC Daniel Barnhurst NRC Ben Adams NRC Michael Spencer NRC Imtiaz Madni NRC Ryan Sprengel TerraPower, LLC (TerraPower)

Benoit Dionne TerraPower Eric Williams TerraPower Tara Neider TerraPower Ian Gifford TerraPower Tom Reeves TerraPower Rob Corbin TerraPower Bassem El-Dasher TerraPower Lisa Schichlein General Electric Hitachi (GEH)

Eddie Riffle GEH Dennis Brooks GEH George Wadkins GEH Maria Pfeffer GEH Scott Pfeffer GEH Archad Kahn GEH Derek Bass GEH Russ Stacchowski GEH Steven Kline Bechtel Altheia Wyche Bechtel Lynn Van-Derpoel Bechtel Bob VanEngelenhoven PacifiCorp Andrew Bielen Public Citizen Enclosure

Steven Pope Public Citizen Lisa Matis Public Citizen Juris Jauntirans Public Citizen Andrew Bielen Public Citizen Mitchell Lottie Public Citizen Frank Hope Public Citizen