ML23048A006
| ML23048A006 | |
| Person / Time | |
|---|---|
| Site: | 99902078 |
| Issue date: | 02/27/2023 |
| From: | Joseph S NRC/NRR/DNRL/NRLB |
| To: | Michael Dudek NRC/NRR/DNRL/NRLB |
| References | |
| Download: ML23048A006 (5) | |
Text
February 27, 2023 MEMORANDUM TO:
Michael I. Dudek, Chief New Reactor Licensing Branch Division of New and Renewed Licenses Office of Nuclear Reactor Regulation FROM:
Stacy K. Joseph, Senior Project Manager
/RA/
New Reactor Licensing Branch Division of New and Renewed Licenses Office of Nuclear Reactor Regulation
SUBJECT:
U.S. NUCLEAR REGULATORY COMMISSION
SUMMARY
OF THE JULY 27, 2022, OBSERVATION PUBLIC MEETING TO DISCUSS NUSCALE POWER, LLCS APPROACH FOR TREATMENT OF DC POWER The U.S. Nuclear Regulatory Commission (NRC) held an observation public meeting on July 27, 2022, to discuss NuScale Power, LLCs (NuScales) approach for treatment of DC Power in their safety analysis. This was a follow-up meeting to the May 4, 2022, public meeting, where NuScale provided a high-level overview of its approach and solicited preliminary feedback to inform a topical report submittal on the proposed methodology. In this meeting, NuScale responded to the staffs preliminary feedback documented in the proprietary portion of the May 4, 2022, meeting summary, which can be found in the NRCs Agencywide Documents Access and Management Systems (ADAMS) Accession No. ML22152A236.
The public meeting notice dated July 27, 2022, was posted on the NRC public website, and can be found under ML22208A117. Information related to NuScale presentation can be found under ML22199A202 (Nonproprietary) and ML22199A207 (Proprietary). The enclosure provides a list of the meeting participants.
During the open portion of the meeting, NuScale provided a summary of the presentation and discussion topics that would be held during the closed portion of the meeting. NuScale then provided a short summary about the safety improvement of the US460 Emergency Core Cooling System design change, described the interactions with the NRC on the topic of DC power in Chapter 15 to date, and finally, provided a brief statement on how NuScale determines the most appropriate way to satisfy the Chapter 15 requirements consistent with the Commissions policy on risk-informed regulation.
CONTACT: Stacy Joseph, NRR/DNRL 301-415-325
M. Dudek 2
Following the open portion of the meeting, NuScales proprietary presentation focused on the following topics:
History of the treatment of DC power in Chapter 15 Reviewing prior NRC feedback NuScales revised approach Treatment of DC power availability in Chapter 15 analysis is an opportunity to apply the inadvertent actuation block precedent, Staff Requirements Memorandum SECY 0036, Application of the Single Failure Criterion to NuScale Power LLC's Inadvertent Actuation Block Valves The NRC staff provided feedback throughout the presentation. NuScale plans to submit their report on the treatment of DC power in Chapter 15 later in the year.
Docket No. 99902078
Enclosure:
List of Meeting Attendees cc: DC NuScale Power, LLC Listserv
- via email NRR-106 OFFICE DNRL/NRLB:PM DNRL/NRLB:LA DNRL/NRLB:PM DNRL/NRLB:BC DNRL/NRLB:PM NAME SJoseph SGreen GTesfaye*
MDudek*
SJoseph DATE 02/16/23 02/17/23 02/17/23 02/27/23 02/27/23
Enclosure U.S. NUCLEAR REGULATORY COMMISSION
SUMMARY
OF THE JULY 27, 2022, OBSERVATION PUBLIC MEETING TO DISCUSS NUSCALE POWER, LLCS APPROACH FOR TREATMENT OF DC POWER IN SAFETY ANALYSIS List of Meeting Attendees July 27, 2022 Name Organization Alferink, Steven U.S. Nuclear Regulatory Commission (NRC)
Barrett, Antonio NRC Bavol, Bruce NRC Donoghue, Joseph NRC Drucker, David NRC Dudek, Michael NRC Grady, Anne-Marie NRC Guevel, Patrick NRC Kock, Andrea NRC Miller, Joshua NRC Nolan, Ryan NRC Park, Sunwoo NRC Patton, Rebecca NRC Pohida, Maria NRC Ramadan, Liliana NRC Ray, Sheila NRC Ross-Lee, MJ NRC Smith, Brian NRC Snodderly, Michael NRC Sugrue, Rosie NRC Taylor, Robert NRC Tesfaye, Getachew NRC Tetter, Keith NRC Vasavada, Shilp NRC Vivanco, Ricky NRC Wu, De NRC Becker, Gary NuScale Bergman, Tom NuScale Cummings, Kris NuScale Ehlers, Jeffrey NuScale Gamble, Robert NuScale Griffith, Thomas NuScale Hirmanpour, Bob NuScale Infanger, Paul NuScale Lingenfelter, Andy NuScale
Name Organization Lynn, Kevin NuScale McCloskey, Meghan (presenter)
NuScale McIntosh, Richard NuScale Meadors, Brian (presenter)
NuScale Sawant, Pravin NuScale Shaver, Mark NuScale Subaiya, Peter NuScale Welter, Kent NuScale Williams, Cindy NuScale Becker, Gary NuScale Bates, Melissa Department of Energy (DOE)
Brown, Bradley DOE Byman, Michelle Public Fields, Sarah Uranium Watch