ML25098A098
| ML25098A098 | |
| Person / Time | |
|---|---|
| Issue date: | 04/10/2025 |
| From: | Robert Kuntz NRC/NRR/DORL/LPL3 |
| To: | Hipolito Gonzalez NRC/NRR/DORL/LPL1 |
| References | |
| Download: ML25098A098 (1) | |
Text
April 10, 2025 MEMORANDUM TO:
Hipólito González, Chief Plant Licensing Branch I Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation FROM:
Robert F. Kuntz, Senior Project Manager
/RA/
Plant Licensing Branch III Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation
SUBJECT:
SUMMARY
OF MARCH 13 AND 14, 2025, INFORMATION PUBLIC MEETING TO DISCUSS LESSONS LEARNED RELATED TO DIGITAL INSTRUMENTATION AND CONTROLS LICENSING ACTIVITIES On March 13 and 14, 2025, the U.S. Nuclear Regulatory Commission (NRC or the Commission) staff from the Office of Nuclear Reactor Regulation (NRR) held a public meeting to discuss with industry members and the Nuclear Energy Institute (NEI) lessons learned from licensing of digital instrumentation and control (DI&C) systems.
The meeting notice and agenda dated January 28, 2025, is located at Agencywide Documents Access and Management System (ADAMS) Accession No. ML25072A104. The NRC staffs presentations are available at ML25071A271, and NEIs presentations are available at ML25071A267. A list of meeting attendees is provided in the enclosure. The transcripts of the meeting can be found at ML25098A099 and ML25098A100.
The meeting began with opening remarks from the NRC an NEI. The NRC staff gave an overview of the purpose of the workshop and then presented a background on DI&C Interim Staff Guidance (ISG) DI&C-ISG-06 Licensing Process, Revision 2 (ML18269A259). The NRC staff discussed the Alternate Review Process (ARP) that is included in DI&C-ISG-06.
The next topic that was discussed was insights on lessons learned from licensing reviews presented by Sargent & Lundy. The presentation from Sargent & Lundy discussed the industry perspective on the guidance in DI&C-ISG-06 and provided a historical review of licensing actions competed using the guidance since it was issued. Key challenges and lessons learned were then presented.
Enclosure:
List of Attendees CONTACT: Robert F. Kuntz, NRR/DORL 301-415-3733
H. González The next presentation was provided by Constellation Energy who provided a discussion of the ongoing review of a license amendment for DI&C upgrade at the Limerick Generating Station, Units 1 and 2 (Limerick). The presentation began with a description of the Limerick station.
Constellation then presented a summary of the license amendments submitted to support the planned digital modification. The presentation then discussed the lessons learned from the submittal license amendments.
The next presentation was provided by Dominion Energy to discuss planned DI&C projects at Surry and North Anna power stations. Dominion Energy provided an overview of the reasons the upgrades are planned as well as the scope of the planned changes at each station.
Subsequent to Dominion Energys presentation, Southern Nuclear similarly provided plans to pursue DI&C upgrades at the Harris and Hatch sites. That concluded the meeting on Thursday, March 13, 2025.
On Friday, March 14, 2025, Entergy gave a presentation related to a completed DI&C modification at Waterford 3. Entergy provided a summary of the upgrade and provided lessons learned from the licensing of the upgrade.
On Friday, March 14, 2025, the NRC staff gave a presentation on the staffs lessons learned from licensing actions using the guidance in DI&C-ISG-06. The NRC staff then presented lessons learned related to the review of DI&C amendments as they relate to human factors engineering, vendor inspections, and regional inspections. The NRC staff closed with the next steps for improving the guidance for reviewing DI&C licensing applications.
The meeting was then opened up for any comments or questions. A member of the public asked the NRC staff to describe the specific challenges that have been consistently encountered in reviewing licensing actions under DI&C-ISG-06, Revision 2, and how the NRC is ensuring that diverse perspectives, including those from different industry stakeholders, technical backgrounds, and underrepresented groups, are consider in refining future guidance to enhance both safety and efficiency. In response the NRC staff stated that a solicitation for comments is part of the process to issue guidance and that it holds public meetings such as this workshop. The NRC staff also mentioned that in addition to seeking stakeholder input during development of the guidance, the NRC staff publishes a solicitation for comments and hearing opportunities during license amendment reviews including those that adopt DI&C systems.
The enclosure provides the attendance list for this meeting.
ML25098A098 NRR-106 OFFICE NRR/DORL/LPL3/PM NRR/DORL/LPL1/LA NRR/DORL/LPL1/BC NRR/DORL/LPL3/PM NAME RKuntz KEntz HGonzález RKuntz DATE 4/7/2025 4/9/2025 4/9/2025 4/10/2025
Enclosure List of Attendees U.S. Nuclear Regulatory Commission Public Information Meeting Public Meeting to Discuss Lessons Learned Related to Digital Instrumentation and Controls Licensing Activities March 13 and 14, 2025 Name Affiliation Ahmad Al Rashdan Idaho National Laboratory (INL)
Jim Anderson Nuclear Regulatory Commission (NRC)
Christina Antonescu NRC Neil Archambo Aaron Armstrong NRC Joseph M. Ashcraft PSA Enterprise Robert J. Atkinson Dominion Energy Duane Avery Constellation Energy (Constellation)
Mike Bailey Allison Bassett APS - Palo Verde Sergiu Basturescu NRC Jana Bergman Curtiss Wright Earl Berry Southern Nuclear Alexander Joseph Bowman Tennessee Valley Authority (TVA)
Jeffrey Burns Curtiss Wright Harry Burke Southern Nuclear Alan Campbell Nuclear Energy Institute Norbert Carte NRC Jacob A. Champagne Entergy Jeremy Chenkovich Dominion Energy Allegra Chilstrom Neal Grossman Amy DAgostino NRC Samir Darbali NRC Ronald DiSabatino Constellation Bradley Wicker Dolan TVA Robert England Curtiss Wright Jason English NRC Larry Erin Framatome Jonathan Evans NRC Jerrod Ewing Westinghouse Nuclear (Westinghouse)
Rhea Flanders NRC Steve Flickinger Constellation Teko Foli NRC William F. Fowler EPM Inc.
Name Affiliation Charles M. Fox Arizona Public Service (APS)
Ashley Furguson INPO Ismael Garcia NRC Jason Gasque Enercon David Gennardo NRC Pareez Golub Sargent and Lundy Hipo Gonzalez NRC Brian Green NRC Pablo J. Guardado Constellation Bruce P. Hallbert INL David Harrell MPR Associates Paul Heaney Raymond Herb Sothern Nuclear K. Hernandez James Holloway Dominion Energy David Hooten Sargent and Lundy Tate H. Horthill INL Alfred W. Hyde Dominion Energy Ronald Jarrett Enercon Jeffrey C. Joe INL Jeanne D. Johnston Southern Nuclear Ronald L. Jones Dominion Energy Ian Jung NRC Kerry Kavanagh NRC Patrick Koch NRC Michael Kosman Curtiss Wright Jisuk Kim INL Robert Kuntz NRC Thomas Lambdin APR Ming Li NRC Lauren Lopez Dominion Energy Wesley Lottes Entergy Shiattin Makor NRC Kamishan Martin NRC Nicholas D. Maynard Dominion Energy Matthew McConnell NRC Philip McKenna NRC Marvin Morgan Dominion Energy Jaison Monachan NRC Matt Miller Neal Gross Mary H. Miller Dominion Energy Marty Murphy Curtiss Wright Andrew Nack River Mist Engineering Name Affiliation Tania Marinez Navedo NRC Miguel Noyola APS Frederick OBrien NRC Warren R. Odess-Gillett Westinghouse Rick Paese Sargent and Lundy Pietro G. Porco Westinghouse C. Pugh Dominion Energy Ted Quinn Paragon E.S.
David Rahn NRC Json Remer INL Ashley Rickey Constellation Cindy Rivera APS David Robinson Enercon Gabriel Robinson Gilberto Blas Rodriguez NRC William Roggenbodt NRC Youssef Rokes NRC Fanta Sacko NRC Mark Samselski Constellation Autumn Schuelka APS Matthew Shakun Westinghouse Sinsha Shayan Dominion Energy Lisa A. Simpson Constellation Patrick R. Simpson Constellation Tighe Smith Paragon E.S.
Rich Stattel GE Vernova Hana Stolas Dinesh Taneja NRC Philip J. Tarpinian, Jr.
Constellation Marcia Thompson APS Tyrone S. Tonkinson Dominion Energy Timothy Tully Entergy Congjian Wang INL Lewis Wetzel Paragon E.S.
Daniel Wilson Westinghouse Steve Wyman NRC Michael Zagami Duke Energy Deanna Zhang NRC Jack Zhao NRC