Letter Sequence Meeting |
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Initiation
- Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request
- Acceptance...
Administration
- Withholding Request Acceptance
- Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting
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MONTHYEARML19130A1672019-05-14014 May 2019
May 8, 2019 Summary of Teleconference with Northern States Power Company, Doing Business as Xcel Energy, to Discuss a Response to a Request for Additional Information Related to the License Amendment Request to Adopt 10 CFR 50.69
Project stage: RAI
ML23087A0222023-03-15015 March 2023
Submittal of X Energy, LLC (X-energy) Xe-100 Slide Deck, Control Room Operator Qualification Discussion
Project stage: Request
PMNS20230299, Meeting with X Energy, LLC Regarding the Structure of the Xe-100 Construction Permit Application2023-03-22022 March 2023
Meeting with X Energy, LLC Regarding the Structure of the Xe-100 Construction Permit Application
Project stage: Meeting
PMNS20230339, Meeting with X Energy, LLC Regarding the Xe-100 Slide Deck Control Room Operator Qualification Discussion2023-04-0505 April 2023
Meeting with X Energy, LLC Regarding the Xe-100 Slide Deck Control Room Operator Qualification Discussion
Project stage: Request
ML23104A4352023-04-14014 April 2023
Submittal of X Energy, LLC (X-energy) Slides for Xe-100 White Paper, Graphite Material Qualification
Project stage: Request
PMNS20230413, Discussion of the X-energy White Paper, Graphite Qualification Methodology2023-04-18018 April 2023
Discussion of the X-energy White Paper, Graphite Qualification Methodology
Project stage: Request
ML23159A0202023-06-13013 June 2023
Letter and Enclosure 1 - Summary of the April 17, 2023, Closed Meeting with X-Energy, LLC Regarding the XE-100 Slide Deck Control Room Operator Qualification Discussion
Project stage: Meeting
ML23172A2352023-06-21021 June 2023
Summary of Meeting with X-Energy, LLC Regarding the Structure of the XE-100 Construction Permit Application
Project stage: Meeting
ML23207A1882023-07-0808 July 2023
Summary for April 24, 2023 Partially-closed Meeting with X-energy Regarding the Graphite Material Qualification Methodology White Paper - Redacted
Project stage: Meeting
ML23212B2112023-07-31031 July 2023
Submittal of X Energy, LLC (X-energy) Xe-100 Graphite Qualification Regulatory Engagement Plan
Project stage: Request
ML23258A1052023-09-15015 September 2023
X-Energy, LLC, Xe-100 Spent Fuel Management Licensing Approach White Paper
Project stage: Request
PMNS20231062, Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor2023-09-21021 September 2023
Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor
Project stage: Meeting
PMNS20231063, Pre-Application Meeting with X-energy to Discuss the Proposed White Paper on Spent Fuel Management for the Xe-100 High Temperature Gas Reactor2023-09-25025 September 2023
Pre-Application Meeting with X-energy to Discuss the Proposed White Paper on Spent Fuel Management for the Xe-100 High Temperature Gas Reactor
Project stage: Meeting
ML23271A2562023-10-12012 October 2023
X-Energy, LLC, Xe-100 Graphite Engagement: Xe-100 Graphite Engagement: Ignis Graphite Modeling Toolset Used in Xe-100 Analyses and Qualification Approach
Project stage: Request
PMNS20231069, Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor2023-10-12012 October 2023
Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor
Project stage: Meeting
PMNS20231213, Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor2023-11-0606 November 2023
Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor
Project stage: Meeting
ML23303A2082023-11-0909 November 2023
X-Energy, LLC, Xe-100 Graphite Engagement: ASME Service Level Definition, LBE Mapping, and Design Loadings for Graphite Core Assembly
Project stage: Request
ML23325A2412023-11-21021 November 2023
X-Energy, LLC, Xe-100 Preliminary Safety Analysis Report (PSAR) Chapter 2 Site Characteristics and Environmental Report
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PMNS20231302, Notice of Meeting with X Energy, LLC2023-11-29029 November 2023
Notice of Meeting with X Energy, LLC
Project stage: Request
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October 5 2023 Meeting Summary Public Meeting with X-Energy to Discuss Graphite Qualification
Project stage: Meeting
ML23332A7652023-12-12012 December 2023
X-Energy, LLC, Xe-100 Principal Design Criteria (PDC)
Project stage: Request
ML23244A2732023-12-31031 December 2023
Enclosure 2: X-Energy, LLC, Presentation Materials - Xe-100 Graphite Engagement: Material Model
Project stage: Request
ML23319A3592024-01-0404 January 2024
Summary of Public Meeting with X-Energy, Llc., to Discuss Approach for Graphite Qualification for the XE-100 High Temperature Gas Reactor
Project stage: Meeting
ML23355A0762024-01-0404 January 2024
Summary of Public Meeting with X-Energy, Llc., to Discuss Approach for Graphite Qualification for the XE-100 High Temperature Gas Reactor
Project stage: Meeting
ML24004A0212024-01-10010 January 2024
Summary of Public Meeting with X-Energy, Llc., Spent Fuel Management White Paper
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ML24002B1662024-01-17017 January 2024
Enclosure 2: Xe-100 Graphite Engagement: Transient, Fatigue, and Seismic Assessment Methodology Presentation - Open Meeting - Non-Proprietary (Public)
Project stage: Request
PMNS20231413, Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor2024-01-17017 January 2024
Pre-Application Meeting with X-energy to Discuss the Proposed Graphite Qualification Plan for the Xe-100 High Temperature Gas Reactor
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PMNS20231412, Pre-Application Meeting with X-energy to Discuss Their Fuel Qualification Plan for the Xe-100 High Temperature Gas Reactor2024-01-25025 January 2024
Pre-Application Meeting with X-energy to Discuss Their Fuel Qualification Plan for the Xe-100 High Temperature Gas Reactor
Project stage: Meeting
ML24017A2552024-01-31031 January 2024
X-Energy, LLC, Use of Meteorological Data for Project Long Mott
Project stage: Request
ML24060A0012024-02-29029 February 2024
Meeting Summary - December 7, 2023 Public Meeting with X-Energy to PSAR Chapter 2
Project stage: Meeting
ML24067A3002024-03-25025 March 2024
Letter - Request for Withholding Information from Public Disclosure for X Energy, LLC XE-100 Pre-Application Engagement Presentation Materials (EPID No. L-2018-RM-0076)
Project stage: Withholding Request Acceptance
ML24093A0852024-04-15015 April 2024
Summary of the January, 2024, Public Meeting with X Energy, LLC (X-Energy), XE-100 Fuel Qualification Update
Project stage: Meeting
ML24109A2872024-04-25025 April 2024
December 12 2023 Meeting Summary of Public Meeting with X-Energy to Discuss Principal Design Criteria
Project stage: Meeting
ML24109A2932024-04-25025 April 2024
January 31 2024 Meeting Summary of Public Meeting with X-Energy to Meteorological Data for Project Long Mott (1).docx
Project stage: Meeting
ML24122A9922024-05-23023 May 2024
Summary of the January 17, 2024 Public Meeting with X Energy, Llc. Approach for Graphite Qualification for the XE-100 High Temperature Gas Reactor
Project stage: Meeting
2023-06-21
[Table View] |
Text
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION July 8, 2023 MEMORANDUM TO:
William Jessup, Chief Advanced Reactor Licensing Branch 1 Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation FROM:
Michael Orenak, Project Manager /RA/
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 APRIL 24, 2023, PARTIALLY CLOSED MEETING BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION STAFF AND X ENERGY, LLC REGARDING THE GRAPHITE MATERIAL QUALIFICATION METHODOLOGY WHITE PAPER Meeting Information:
Applicant: X Energy LLC Docket/Project No. 99902071 EPID: L-2018-LRM-0076 Meeting
Title:
Meeting with X Energy LLC regarding the Xe-100 Licensing White Paper:
Graphite Material Qualification Methodology Meeting Date: April 24, 2023 Meeting Type: Partially Closed Public Meeting Notice Agencywide Documents Access and Management System (ADAMS):
ML23108A166 Public Portion Meeting Slides: ML23104A435 Closed Portion Meeting Slides: ML23104A434 (non-public)
Meeting Attendees: See Enclosure for list of meeting attendees.
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION Meeting Summary:
The U.S. Nuclear Regulatory Commission (NRC) staff held a virtual partially closed meeting with representatives from X-Energy, LLC (X-energy). The meeting was conducted in accordance with NRC Management Directive 3.5, Attendance at NRC Staff-Sponsored Meetings (ADAMS Accession No. ML21180A271).
During the public portion of the meeting, X-energy presented their public slides. There was no discussion with the NRC staff during or after the presentation. There were no public comments during the public comment period.
During the closed portion of the meeting, X-energy presented a proprietary set of slides to the NRC staff. The main points of discussion in the closed session included:
For the slide with the reactor diagram and temperatures graph, the NRC staff asked several questions:
The NRC staff asked if this analysis is for abnormal events, or just for normal events.
X-energy responded that this graph was for normal 100% power operation and no abnormal events are represented. This data set is for the best estimate at this moment in time and will likely change as the design is refined.
The NRC staff also asked ((
)).
The NRC asked what the top reflector material is. X-energy responded that the top reflector is made of ((
)).
The NRC staff asked how X-energy will know when the best fit curves go beyond the crossover fluence. X-energy responded the graphite is ((
)). The current analysis does not account for uncertainty or material property variability.
X-energy staff stated during their presentation that ((
)).
The NRC staff asked X-energy to comment on data from the ((
)).
The NRC staff asked if X-energy viewed high temperature creep data at high fluences as relevant. X-energy stated that the ((
)).
The NRC staff discussed the use of limited extrapolation allowed by the ASME Code. Limited extrapolation is not defined in the ASME Code and the NRC staff asked of X-energy is extrapolating temperature, fluence, or both, and asked if X-energy has limits or guidance for extrapolation of this type. X-energy stated that ((
)).
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION The NRC staff asked if graphite ((
)). X-energy responded that they dont expect to see ((
)) could be changed if justified.
The NRC staff noted that in the area of a graph where ((
)). The NRC staff asked what are X-energys plans, or what actions are being taken, if the data ((
)). X-energy responded that they are doing testing at ((
)). X-energy stated that the testing should meet the ASME non-stressed data requirements.
The NRC staff asked about credited historical graphite data, specifically if the graphite in the data cant be guaranteed to be the same as analyzed/used by X-energy to meet the requirements in Article HHA-5000, Historical Data, of Section III Division 5. X-energy responded that they will work with the manufacturer to assure the graphite used by X-energy is consistent with the tested material.
At the end of the meeting, the X-energy reviewed several questions that they wanted the NRC staff to answer in the NRCs white paper feedback. The NRC staff said to directly ask those questions within the white paper and the NRC will respond.
CONTACT: Michael Orenak, NRR/DANU (301) 415-3229
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION
SUBJECT:
SUMMARY
OF THE APRIL 24, 2023, PARTIALLY CLOSED MEETING BETWEEN THE U.S. NUCLEAR REGULATORY COMMISSION STAFF AND X ENERGY, LLC REGARDING THE GRAPHITE MATERIAL QUALIFICATION METHODOLOGY WHITE PAPER DATED: JULY 7, 2023 DISTRIBUTION:
Public RidsOgcMailCenter RidsOpaMail Resourcex RidsNrrDanu Resource RidsNrrDanuUarl Resource JProffitt, NRR MOrenak, NRR SDevlinGill, NRR DGreene, NRR MAudrain, NRR MGordon, NRR AChereskin, NRR RBass, NRR ADAMS Accession Number: ML23207A187 NRR-052 OFFICIAL RECORD COPY OFFICE NRR/DANU/UAL1/PM NRR/DANU/UAL1/BC NRR/DANU/UAL1/PM NAME MOrenak WJessup MOrenak DATE 6/7/2023 6/8/2023 6/8/2023
OFFICIAL USE ONLY PROPRIETARY INFORMATION OFFICIAL USE ONLY PROPRIETARY INFORMATION Enclosure List of Attendees Partially Closed Meeting Between the U.S. Nuclear Regulatory Commission Staff and X Energy, LLC Regarding the Graphite Material Qualification Methodology White Paper Monday, April 24, 2023 Name Organization Mike Orenak U.S. Nuclear Regulatory Commission (NRC)
Matt Gordon NRC Stephanie Devlin-Gill NRC Margret Audrain NRC Andrew Proffitt NRC Alex Chereskin NRC Ryann Bass NRC Ingrid Nordby X-Energy LLC (X-energy)
Travis Chapman X-energy Jon Facemire X-energy Chris Cruz X-energy Charlotte Geiger X-energy James Roll X-energy Tim Lucas X-energy Paul Loza X-energy Sam Baylis X-energy FJ van Zenten X-energy Ryan Buck X-energy Mark Natale US Department of Energy Carl Friesen US Department of Energy Matthew Hahn US Department of Energy Gwennal Beirnaert Contractor for X-energy Don Behnke Contractor for X-energy Jamie Cano Leigh Lloveras Breakthrough Institute Zefeng Yu Derek Watkins