ML24277A154
| ML24277A154 | |
| Person / Time | |
|---|---|
| Issue date: | 10/17/2024 |
| From: | Delosreyes J Licensing Processes Branch |
| To: | Gerond George Division of Operating Reactor Licensing |
| Shared Package | |
| ML24277A161 | List: |
| References | |
| Download: ML24277A154 (8) | |
Text
October 17, 2024 MEMORANDUM TO:
Gerond George, Chief Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
James Delosreyes, Project Manager /RA/
Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
MEETING
SUMMARY
OF THE SEPTEMBER 3, 2024, HIGHER BURNUP WORKSHOP V On September 3, 2024, the U.S. Nuclear Regulatory Commission (NRC) staff held the Higher Burnup (HBU) Workshop V, an observation public meeting, with nuclear industry and other stakeholders. This workshop included presentations by the NRC staff and representatives from the Nuclear Energy Institute (NEI), the Electric Power Research Institute (EPRI), the U.S.
Department of Energys (DOE) Oak Ridge National Laboratory (ORNL). The meeting had two purposes: (1) to exchange information between the NRC and industry on HBU, increased enrichment (IE), and accident tolerant fuel (ATF) activities; and (2) to provide an opportunity for members of the public to ask questions of the NRC staff. The meeting notice is available in the Agencywide Documents Access and Management System (ADAMS) at Accession No. ML24243A162. The meeting slides are available at ADAMS Accession No. ML24243A161.
Opening and closing remarks were given by Andrea Kock, Deputy Office Director for Engineering in the Office of Nuclear Reactor Regulation. The topics discussed during the meeting are summarized below.
Accident Tolerant Fuel and Increased Enrichment Rulemaking Update The NRC staff delivered a presentation on various ATF-related activities such as updates to the Roadmap to Readiness which was revised most recently to version 1.2 on August 2, 2024 (ADAMS Accession No. ML24199A170), a discussion on the newly signed ADVANCE Act and its implications for the ATF project team, and a brief overview of the status of the IE rulemaking since the previous workshop. This was followed by a more detailed presentation on Fuel Fragmentation, Relocation, and Dispersal (FFRD) and the regulations at Title 10 of the Code of Federal Regulations (10 CFR) 50.46, two topics closely tied to the IE rulemaking and of high public interest.
Industry Motivation for Use of Higher Burnup EPRI representatives delivered a presentation on key factors driving industry interest in HBU, such as favorable financial outcomes resulting from recent legislation and demand forecasts.
Power uprates and cycle length extensions are two feasible methods of increasing the efficiency of existing commercial nuclear power, some of which are planned to leverage IE and HBU.
Industry Perspectives on a Modernized and Combined Risk-Informed Loss-of-Coolant Accident Rule NEI representatives delivered a presentation on their perspective on 10 CFR 50.46. This began with an overview of the historical rule and its shortcomings. Various improvements are suggested, such as making it technology-neutral, performance-based, and risk-informed, as well as considerations for its implementation.
NRCs Phenomena Identification and Ranking Tables for High Burnup Fuel Fragmentation, Relocation, Dispersal, and Its Consequences for Design-Basis Accidents The NRC staff delivered a presentation on the Phenomena Identification and Ranking Tables (PIRT) exercise for FFRD which was documented in NUREG/CR-7307 (ADAMS Accession No. ML24155A058) and published on May 31, 2024. This exercise was a scientific study involving a number of academic and industry members to evaluate the impacts of extending burnup limits under various accident scenarios, the results of which will be used to support the IE rulemaking.
Proposed Fragmentation, Relocation, Dispersal Dose Consequence Guidance in DG-1425 (Draft Rev 2 of RG 1.183)
The NRC staff delivered a presentation on the next revision of Regulatory Guide (RG) 1.183, another supporting document for the IE rulemaking which is currently being drafted. Among other changes, this revision updates the guidance and analysis regarding radiological consequences for certain accidents.
High Burnup Summary Representatives from ORNL delivered a presentation on their continued research in support of HBU. Data and analyses regarding studies on fuel sieving, cladding strain, fission gas release, and FFRD were shared as well as a summary of future planned work.
Environmental Evaluation of Accident Tolerant Fuel with Increased Enrichment and Higher Burnup Levels The NRC staff delivered a presentation on NUREG-2266 (ADAMS Accession No. ML24207A210) which evaluates the environmental impact of the deployment and use of IE and HBU in support of licensing reviews and was published on July 31, 2024. Addressed in the document are the impacts of the uranium fuel cycle, transportation of fuel and waste, and decommissioning.
Spent Fuel Pool 2024 A Regulatory Perspective The NRC staff delivered a presentation relating HBU to spent fuel pool licensing and regulation.
General considerations and guidance were provided which would allow for a more efficient license amendment request review process within this domain.
Public Comments Two public comments were received during this meeting. For the first, a member of the public made a comment regarding regulations being made into guidance and then asked whether damaged fuel was being placed into spent fuel pools and what would be the effect of the storage of the canisters for this case, which were asked in relation to NUREG-2266 and FFRD.
The NRC staff responded that due consideration is made for what is written into regulations versus guidance based on the available data to ensure adequate protection. For the second, a member of the public addressed a concern with provisions regarding fuel retrievability, in the context of 10 CFR Part 72. The NRC staff responded that it continues to holistically assess the impact on waste disposal and storage with the available information and reassess as further information becomes available.
No regulatory decisions were made during this meeting.
Please direct any inquiries to James Delosreyes at James.Delosreyes@nrc.gov.
Enclosure:
List of Attendees
Enclosure LIST OF ATTENDEES HIGHER BURNUP WORKSHOP V September 3, 2024 9:00 am - 12:30 pm U.S. Nuclear Regulatory Commission (NRC)
First Name Last Name Zena Abdullahi Philip Benavides Andrew Bielen Kristy Bucholtz Jesse Carlson Theresa Clark Alex Collier James Corson Vic Cusumano James Delosreyes Elijah Dickson Dan Doyle Darrell Dunn Denise Edwards Hossein Esmaili David Garmon Gerond George Victor Hall Kevin Heller Kevin Hsueh Jason Huang Daniel King Andrea Kock Scott Krepel Lucas Kyriazidis Michael Mahoney Sean Meighan Joseph Messina Donald Palmrose Scott Palmtag Aida Rivera-Varona Cinthya Roman David Rudland Ashley Smith James Smith Ted Smith Rao Tammara Robert Tregoning Zach Turner Gokul Vasudevamurthy Brian Wagner Kimberly Webber Sunil Weerakkody Brandon Wise Antonios Zoulis Non-NRC First Name Last Name Organization (if provided)
Darius B Ahrar Excel Energy Victoria Anderson NEI James Andrachek Westinghouse Samuel J Baker Dominion Energy Kevin J Barber Westinghouse Ernest F Bates Southern Nuclear Philippe Bellanger Framatome Jana Bergman Curtiss-Wright Samson Vincent Berklite Duke Energy Zach Bevans Public Michael A Blom Duke Energy Walter Boatwright Vistra Corp Michael L Boone Westinghouse David E Bortz Duke Energy Jan Boudart Public Damon V Bryson Dominion Energy Donald J Buth Duke Energy Jared A Cantrell Public Nathan Capps ORNL Christopher Clemens Dominion Energy Paul Clifford Framatome Joe Coletta Duke Energy Ben Collins Public Jonathan Cordz Ameren Aladar Csontos NEI Cecile Dame MPR Associates Earp Jr.
Dennis Duke Energy Peter Diller General Electric Bradley Dolan Southern Nuclear Zach Duncan Public Chris Eastus Entergy Joseph Faldowski EPRI Rodolfo Ferrer Studsvik John D Fisher Energy Northwes William P Gassmann Constellation Lisa Gerken Framatome Mario E Gomez Fernandez NuScale Power Kent E Halac Global Nuclear Fuel - Americas Robert Hall Duke Energy Mark Conrad Handrick Duke Energy Stanley Hayes Duke Energy Tao He Constellation Kimberly Hobbs Constellation Jerald Holm Framatome Zeses Karoutas Westinghouse Storm Kauffman MPR Associates Kasey L Kennett Dominion Energy Behrooz Khorsandi Constellation Jeffrey R Kobelak Westinghouse Aylin Kucuk EPRI Samuel Lafountain Southern Nuclear Svetlana Lawrence Idaho National Laboratory Guangjun Li General Electric Kurt P Linsenbardt Ameren James M Lynde Constellation Alex J Markivich Dominion Energy John R Massari Constellation Tara Elizabeth Matheny Duke Energy Brian Merritt Public Bruce Montgomery NEI Brian L Mount Dominion Energy Kurshad Muftuoglu EPRI Carole Naugle Framatome Matthew Nudi EPRI Stephen P O'hearn Public David S Orr Duke Energy Geoff Pihl Duke Energy Frances Pimentel NEI Steven Pope Information Systems Laboratories Ian Porter General Electric Thomas Remick Public Donald E Rickard Ameren Baris Sarikaya Constellation Phil Sharpe Studsvik Emily R Shemon Argonne National Laboratory Fred Smith EPRI Scott Stanchfield Entergy Charles Stroupe Duke Energy Ryan T Sweet ORNL Dallas Swihart Public Scott B Thomas Duke Energy Chris L Thornell Public Emily J Tomlinson Dominion Energy Duane Twining Dominion Energy Kalene Walker Public Ryan Yeung Public Dustin Zavada General Electric
Package: ML24277A161 Meeting Summary: ML24277A154 Meeting Notice: ML24243A162 Meeting Slides: ML24243A161 OFFICE DORL/LLPB/PM DORL/LLPB/LA DORL/LLPB/BC DORL/PLPB/PM NAME JDelosreyes DHarrison GGeorge JDelosreyes DATE 10/03/2024 10/16/2024 10/17/2024 10/17/2024