ML19050A311

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December 11, 2018 Summary of Closed Meeting with Oklo, Inc. to Discuss the Oklo DG-1353 Pilot Report
ML19050A311
Person / Time
Site: 99902046
Issue date: 02/21/2019
From: Mazza J
NRC/NRO/DSRA/ARPB
To: John Segala
NRC/NRO/DSRA/ARPB
Mazza J,NRO/DSRA/ARPB,415-0498
References
Download: ML19050A311 (6)


Text

February 21, 2019 MEMORANDUM TO: John P. Segala, Chief Advanced Reactor and Policy Branch Division of Safety Systems, Risk Assessment and Advanced Reactors Office of New Reactors FROM: Jan M. Mazza, Project Manager \RA\

Advanced Reactor and Policy Branch Division of Safety Systems, Risk Assessment and Advanced Reactors Office of New Reactors

SUBJECT:

SUMMARY

OF DECEMBER 11, 2018, CLOSED MEETING WITH THE U.S. NUCLEAR REGULATORY COMMISSION STAFF AND OKLO, INC., TO DISCUSS OKLO, INC., DG-1353 PILOT REPORT On December 11, 2018, a closed meeting was held between the U.S. Nuclear Regulatory Commission (NRC) staff and representatives from Oklo, Inc. (Oklo) at the NRC offices at One White Flint North, 11555 Rockville Pike, North Bethesda, Maryland 20852, Room 3-B04. The purpose of this closed meeting was for Oklo personnel to engage the NRC on how Oklo implemented DG-1353, Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Approach to Inform the Content Applications for Licenses, Certifications, and Approvals for Non-Light Water Reactors. In preparation for this meeting, Oklo submitted the DG-1353 Pilot Report, on October 31, 2018. Also, on December 3, 2018, Oklo released DG-1353 Lessons Learned, to the public for discussions with the industry on the Licensing Modernization Project (LMP). NRC staff reviewed both of these documents in preparation for the closed meeting.

After the opening introductions, Jason Custer from Alaska Power and Telephone, who attended the meeting as Oklos guest, provided remarks summarizing the off-grid power needs for Alaskas small and remote communities. Members of the Oklo team then led a discussion on lessons learned regarding DG-1353 and provided a summary of the safety case for Oklos design. The NRC staff asked Oklo for clarification in a number of areas including the use of Dynamic Probablistic Risk Assessment, treatment of uncertainties in the frequency-consequence results, treatment of passive structures, systems and components, and Oklos implementation of task 5a of the LMP, Identify Required Safety Functions. Overall the discussion was valuable to both Oklo and NRC. Oklo gained a better understanding of the areas of focus and level of detail the NRC would need to review the Oklo design. The NRC gained more detailed information on the Oklo design and safety case.

The meeting agenda and list of meeting attendees are included in Enclosures 1 and 2. The Accession Number for the meeting notice and the non-proprietary version of the Oklo DG-1353 Pilot Report, and DG-1353, Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Approach to Inform the Content Applications for Licenses, Certifications,

J. Segala 2 and Approvals for Non-Light Water Reactors, are ML18332A193, and ML19038A473, and ML18264A093. These documents are located in the NRC Agencywide Documents Access and Management System (ADAMS). ADAMS is the system that provides text and image files of NRCs public documents. Documents are available electronically at the NRC's Electronic Reading Room at http://www.nrc.gov/reading-rm/adams.html. If you do not have access to ADAMS or have problems accessing the documents located in ADAMS, contact the NRC Public Document Room (PDR) staff at (800) 397-4209 or (301) 415-4737, or pdr@nrc.gov.

CONTACT: Jan M. Mazza, NRO/DSRA (301) 415-0498

J. Segala 3

SUMMARY

OF DECEMBER 11, 2018, CLOSED MEETING WITH THE U.S. NUCLEAR REGULATORY COMMISSION STAFF AND OKLO, INC., TO DISCUSS OKLO, INC., DG-1353 PILOT REPORT - February 21, 2019 Docket No.: 99902046

Enclosures:

1. Agenda
2. List of Attendees DISTRIBUTION:

Public JMazza, NRO JSegala, NRO RidsNroDsra Resource RidsOgcMailCenter RidsOpaMail Resource ADAMS ACCESSION No.: ML19050A311 NRC-002 OFFICE NRO/DSRA NRO/DSRA NAME JMazza JSegala DATE 02/21/2019 02/21/2019 OFFICIAL RECORD COPY

AGENDA Oklo, Inc. Closed Meeting with the U.S. Nuclear Regulatory Commission (NRC)

DG-1353 PILOT REPORT Tuesday December 11, 2018 One White Flint 3-B04 Time Topic Lead Opening NRC/Oklo, 8:30 am - 9:00 am Inc.

Oklo Discussion 9:00am - 10:00am

  • Lessons learned regarding DG-1353 Oklo, Inc.
  • Safety case for Oklos design 10:00am - 10:15am Break NRC Comments/Questions on Oklo, Inc. NRC.

10:15am - 12:00pm Implementation of DG-1353 12:00pm Meeting Adjourn All Enclosure 1

ATTENDANCE LIST Oklo, Inc. Closed Meeting with the U.S. Nuclear Regulatory Commission (NRC)

OKLO INC., DG-1353 PILOT REPORT Tuesday December 11, 2018 One White Flint North 03-B04 Name Affiliation Bajorek, Steve NRC/RES Hammelman, James NRC/NMSS Hart, Michelle NRC/NRO Mazza, Jan NRC/NRO Schmidt, Jeffrey NRC/NRO Segala, John NRC/NRO Amy Cubbage NRC/NRO Bill Reckley NRC/NRO Bob Fitzpatrick NRC/NRR Andrew Yeshnik NRC/NRO Marty Stutzke NRC/NRO Hahn Phan NRC/NRO Joe Ashcraft NRC/NRO John Monninger NRC/NRO Kevin Coyne NRC/NRO Tuan Le NRC/NRO Steven Lynch NRC/NRR Ryan Nolan NRC/NRO Tim Lupold NRC/NRO Tim Drzewiecki NRC/NRO Boyce Travis NRC/NRO Imtiaz Madni NRC/NRO Ishmael Garcia NRC/NRO Enclosure 2

Zach Gran NRC/NRO Michelle Hayes NRC/NRO Stu Magruder NRC/NRO Donald Palmrose NRC/NRO Cochran, Caroline Oklo, INC.

DeWitte, Jacob Oklo, INC Alaska Power &

Jason Custer Telephone John Hanson Oklo, INC Patrick Everett Oklo, INC Samuel Doane Oklo, INC Emma Redfoot Oklo, INC Richard, Joshua Oklo, INC.

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