ML24030A673
| ML24030A673 | |
| Person / Time | |
|---|---|
| Issue date: | 03/13/2024 |
| From: | Scott Krepel Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| Download: ML24030A673 (1) | |
Text
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024 Bethesda North Marriott Hotel and Conference Center Rockville, Maryland
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Use of Accident Tolerant Fuel to Safely Increase Reactor Output Regulatory Information Conference Session W9 March 13, 2024 PANELISTS:
Bo Pham, U.S. Nuclear Regulatory Commission Scott Krepel, U.S. Nuclear Regulatory Commission Frank Goldner, U.S. Department of Energy Dr. Svetlana Lawrence, Idaho National Laboratory Jason Murphy, Constellation Nuclear
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE NRC Perspective:
Licensing for Accident Tolerant Fuel and Power Uprates Scott Krepel Branch Chief, Nuclear Methods & Fuel Analysis Branch, NRC
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Novel fuel materials Doped pellets Coated cladding Increased enrichment
(> 5 weight percent uranium-235)
Higher burnups
(> 62 gigawatt days per metric ton uranium rod average)
Measurement uncertainty recapture (MUR) (<2%)
Stretch PURs (<7%)
Extended PURs (<20%)
Beyond current licensing experience?
Power Uprates (PURs)
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE
- The NRC has approved 172 PURs to date, equivalent to over 8 gigawatts of electricity generation capability
- MURs-73
- Stretch PURs - 65
- Extended PURs - 34
- The NRC has guidance available for PUR applications
- Regulatory Information Summary 2002-03
- Review Standard RS-001
- Application of resolution of complex issues in one application to subsequent applications Current Status: PURs
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Benefits in timely and efficient review Holistic consideration of cross-cutting issues Reduction in review schedule Less administrative duplication Supports power capacity and decarbonization needs Comes with some risk Resource management challenges due to scope Complications that may arise from linked actions Combining ATF and PURs
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE The NRC Is Using Historical Data to Optimize Future Reviews 0
2000 4000 6000 8000 10000 12000 14000 Jan-1993 Jul-1998 Jan-2004 Jul-2009 Dec-2014 Jun-2020 Level of Effort for PURs (hours)
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Identify resources with prior PUR review expertise Knowledge management/transfer Establish core teams Same reviewers assigned to similar PUR applications Use recent tools to improve regulatory efficiency, such as Request for confirmation of information What Can the NRC Do?
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE Early engagement with the NRC on complex issues Application of data validation and reconstitution methods PURs beyond current licensing experience High-quality, complete submittals Consider prior NRC requests for additional information on similar PURs Proactively consider impact of PUR on plant Steam dryer cracking issues What Can the Licensee Do?
RIC 2024 Hybrid U.S. Nuclear Regulatory Commission 36th Annual Regulatory Information Conference MARCH 12-14, 2024
- nrcric2024 www.nrc.gov ADAPTING TO A CHANGING LANDSCAPE The NRC doesnt consult or collaborate with the industry on development and licensing of ATF or PUR implementation but the NRC and licensees are both responsible for efficient and timely licensing.
Additional information on ATF & PURs:
https://www.nrc.gov/reactors/power/atf.html https://www.nrc.gov/reactors/operating/licensing/power-uprates.html Wrap-Up