Letter Sequence Other |
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EPID:L-2024-NTR-0003, EPRI - LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants - Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation (Approved, Closed) |
Results
Other: ML24170A813, ML24170A891, ML24170A896, ML25014A290, ML25014A311, ML25080A217, ML25080A219, ML25080A320, ML25080A326, ML25080A327, ML25105A283, ML25105A284
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MONTHYEARML24121A2092024-04-26026 April 2024
Request for Exemption of NRC Review Fees for Electric Power Research Institute (EPRI) - Analysis of PWR LOCA-Induced Fuel Fragmentation Relocation and Dispersal (FFRD) for Fuel Operating to Extended Burnup: Alternative Licensing Strategy
Project stage: Request
ML24121A2082024-04-30030 April 2024
EPRI - LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants - Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation
Project stage: Request
ML24170A8962024-06-24024 June 2024
NRC Form 897, Topical Report Withholding Determination, for EPRI Technical Report Report 3002028674 LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants (L-2024-TOP-0015)
Project stage: Other
ML24170A8912024-06-25025 June 2024
NRC Form 898, Topical Report Completeness Determination, for EPRI Technical Report 3002028674/5, LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants
Project stage: Other
ML24170A8132024-06-25025 June 2024
Acceptance and Withholding Determination for EPRI Alternative Licensing Strategy Which Addresses PWR LOCA-Induced Fuel Fragmentation, Relocation, and Dispersal
Project stage: Other
ML24225A1352024-08-27027 August 2024
Revision of Dates for Review of Electric Power Research Alternative Licensing Strategy Topical Reports
Project stage: Approval
ML24318C2522024-11-21021 November 2024
E Mail Issuance of Plan for EPRI Regulatory Audit of Technical Report 3002028675 Np 3002028674 P LOCA Analysis of FFRD for Westinghouse 2, 3, and 4 Loop Plant EPID L 2024 NTR0003
Project stage: Approval
ML25014A3112025-02-0303 February 2025
Nonprop - Revised Audit Plan for EPRI Report 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for Westinghouse 2-Loop, 3-Loop & 4-Loop Plants, Eval of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Frag, Rev 0
Project stage: Other
ML25014A2902025-02-0303 February 2025
E-mail - Revised Audit Plan for EPRI Report 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for Westinghouse 2-Loop, 3-Loop & 4-Loop Plants, Eval of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Frag, Rev 0
Project stage: Other
ML25049A0432025-02-26026 February 2025
E-Mail-FINAL RAIs for EPRI Report 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for W 2-Loop, 3-Loop and 4-Loop Plants-Proprietary, Eval of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation, Rev. 0
Project stage: RAI
ML25055A1172025-02-26026 February 2025
Nonproprietary - Report for Electric Power Research Institute Regulatory Audit in Support of Review of Technical Report 3002025288, Enhanced Risk-Informed Categorization Methodology for Pressure Boundary Components, Revision 0
Project stage: Approval
ML25049A0442025-02-26026 February 2025
Nonproprietary - Final RAIs for EPRI Report 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for W 2-Loop, 3-Loop and 4-Loop Plants - Proprietary, Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation,
Project stage: RAI
ML25055A1142025-02-26026 February 2025
E-Mail - Issuance of Report for Electric Power Research Institute Regulatory Audit in Support of Review of Technical Report 3002025288, Enhanced Risk-Informed Categorization Methodology for Pressure Boundary Components, Revision 0
Project stage: Approval
ML25080A3262025-03-21021 March 2025
EPRI Email Pointing Out the Change to 60 Days
Project stage: Other
ML25080A2192025-03-21021 March 2025
Nonproprietary - Final RAI-EPRI Rpt 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for W 2-, 3-, 4-Loop Plants - Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation - Rev. 0
Project stage: Other
ML25080A3202025-03-21021 March 2025
NRC Email Documenting the Change from 60 to 90 Days
Project stage: Other
ML25080A3272025-03-21021 March 2025
NRC Email Acknowledging the Change and Stating Path Forward
Project stage: Other
ML25080A2172025-03-21021 March 2025
Email - Final RAI-EPRI Rpt 3002028675(NP)/3002028674(P), LOCA Analysis of FFRD for W 2-, 3-, 4-Loop Plants - Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation - Rev. 0
Project stage: Other
ML25105A2832025-04-29029 April 2025
LOCA Analysis of FFRD for Westinghouse 2-Loop, 3-Loop and 4-Loop Plants Audit Report Cover Letter
Project stage: Other
ML25105A2842025-04-29029 April 2025
Enclosure 1: LOCA Analysis of FFRD for Westinghouse 2-Loop, 3-Loop and 4-Loop Plants Audit Report Nonproprietary (1)
Project stage: Other
ML26030A0292026-02-0909 February 2026
E-mail - Issuance of Safety Evaluation for EPRI Technical Report 3002028674/5, LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants, for Proprietary Review
Project stage: Approval
2024-08-27
[Table View] |
Text
OFFICIAL USE ONLYPROPRIETARY INFORMATION OFFICIAL USE ONLYPROPRIETARY INFORMATION April 29, 2025 Dr. Aylin Kucuk Program Manager, Nuclear Fuels Electric Power Research Institute Palo Alto Office 3420 Hillview Avenue, Palo Alto, CA 94304-133
SUBJECT:
REPORT FOR THE U.S. NUCLEAR REGULATORY COMMISSION REGULATORY CLOSED AUDIT CONDUCTED ON NOVEMBER 26, 2024-JANUARY 31, 2025, FOR THE REVIEW OF ELECTRIC POWER RESEARCH INSTITUTE TECHNICAL REPORT 3002028674/5, LOCA [LOSS-OF-COOLANT-ACCIDENT] ANALYSIS OF FUEL FRAGMENTATION, RELOCATION, AND DISPERSAL FOR WESTINGHOUSE 2-LOOP, 3-LOOP, AND 4-LOOP PLANTS (EPID L-2024-NTR-0003)
Dear Dr. Aylin Kucuk:
By letter dated April 26, 2024 (Agencywide Documents Access and Management System (ADAMS) Accession No. ML24121A203), Electric Power Research Institute (EPRI) submitted (1) EPRI Report 3002028673, Loss-of-Coolant-Accident [(LOCA)]-Induced Fuel Fragmentation, Relocation, and Dispersal [(FFRD)] with Leak-Before-Break Credit - Alternative Licensing Strategy [ALS], (2) EPRI Reports 3002028675 (NP)/3002028674 (P), LOCA Analysis of Fuel Fragmentation, Relocation, and Dispersal for Westinghouse 2-Loop, 3-Loop, and 4-Loop Plants
- Proprietary, Evaluation of Cladding Rupture in High Burnup Fuel Rods Susceptible to Fine Fragmentation (collectively called ALS for LOCA Analysis of FFRD), and (3) EPRI Report 3002023895, Materials Reliability Program: xLPR [Extremely Low Probability of Rupture]
Estimation of PWR [Pressurized Water Reactor] Loss-of-Coolant Accident Frequencies (MRP-480), to the U.S. Nuclear Regulatory Commission (NRC) for review and approval.
The NRC staff conducted a virtual regulatory closed audit on November 26, 2024, to January 31, 2025, to discuss major topics of the Technical Report 3002028674/5 topical report (TR) review. The non-proprietary (Enclosure 1) and proprietary (Enclosure 2) versions (based on the proprietary markup of the audit report provided by EPRI) of the audit report are enclosed.
NOTICE: Enclosure 2 to this letter contains Proprietary Information. Upon separation from Enclosure 2, this letter is DECONTROLLED.
OFFICIAL USE ONLYPROPRIETARY INFORMATION OFFICIAL USE ONLYPROPRIETARY INFORMATION If you have any questions, please contact me via phone at 301-415-4141 or via email at James.Delosreyes@nrc.gov.
Sincerely,
/RA/
James Delosreyes, Project Manager Licensing Projects Branch Division of Operating Reactor Licensing Office of Nuclear Reactor Regulation Docket No. 99902021
Enclosures:
- 1. Non-Proprietary audit report
- 2. Proprietary audit report
Package: ML25105A282 Cover letter: ML25105A283 Non-proprietary Enclosure 1: ML25105A284 Proprietary Enclosure 2: ML25105A285 OFFICE DORL/LLPB/PM DORL/LLPB/LA DSS/SFNB/BC DNRL/NPHP/BC NAME JDelosreyes DHarrison SKrepel MMitchell DATE 4/16/2025 4/23/2025 4/24/2025 4/16/2025 OFFICE DORL/LLPB/BC DORL/LLPB/PM DORL/LLPB/PM NAME JRankin LJames JDelosreyes DATE 4/24/2025 4/28/2025 4/29/2025