ML23242A078
| ML23242A078 | |
| Person / Time | |
|---|---|
| Site: | Nuclear Energy Institute |
| Issue date: | 08/30/2023 |
| From: | Csontos A Nuclear Energy Institute |
| To: | King D Licensing Processes Branch |
| References | |
| Download: ML23242A078 (1) | |
Text
©2023 Nuclear Energy Institute Aladar A. Csontos, Ph.D Director, Fuels DRIVE TO DEPLOY ATF WITH INCREASED ENRICHMENT AND HIGHER BURNUP August 31, 2023
©2023 Nuclear Energy Institute 2 Develop and deploy fuel technologies that enhance accident tolerance and provide operational resiliency while enabling sustained economic performance through minimizing cost and improving efficiency Safely and economically enable 24-month cycle operation for the entire fleet of existing light water reactors (burnups up to ~75 GWd/MTU)
Achieve fuel licensing infrastructure to support burnup and enrichment extensions (LEU+) beyond legacy limits in the mid-2020s Commercialization and economies of scale of these advanced fuel technologies through sustainable volumes to meet the domestic and global demand Industry Strategic Aspirations Accident Tolerant Fuel Increased Enrichment Burnup Increases
©2023 Nuclear Energy Institute 3 NRC SECY-21-0109 Increased Enrichment Rulemaking Plan Constellation ATF/Traditional Zr HBU LTA LAR approval Southern ATF with LEU+ LTA LAR approval Framatome Approval for LEU+ Codes and Methods Westinghouse ATF ADOPT Topical Approval Westinghouse Topical Submittal to 68 GWd/MTU Idaho Shipping Moratorium Lifted - Byron Rods NRC Commission Meeting: Overview of ATF Activities NRC CoC issued for Orano DN30-X (USA/9388/AF-96)
Publication of NEI-19-01 Rev. 1 and Futures Survey Report EPRI HBU & SFP Inventory Management Study and ALS Fee Waiver Request Key Accomplishments
©2022 Nuclear Energy Institute 4
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SNC Hatch:
(GE/GNF)
SNC Vogtle:
Constellation Byron:
Constellation Clinton:
(GE/GNF)
Entergy ANO-1:
Constellation Calvert Cliffs:
Xcel Monticello:
Key U.S. ATF/LEU+/HBU Commercial Testing
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Constellation Limerick:
(GE/GNF) 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 SNC Vogtle:
(Westinghouse) 2028
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Coated Cladding IronClad Enhanced UO2 Fuel High Density Fuel High Burnup LUA, Coated Cladding High Burnup LUA Enhanced UO2, LEU+,
Coated Cladding
+ Loadings Removal A Receipt Authorization
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A
©2023 Nuclear Energy Institute 5 Industry ATF Test Sample Shipment Plans Quarter Shipped Reactor Site Vendor Shipping Container Lab Destination ATF Materials Q4 2020 SNC Hatch GNF GE 2000 ORNL ARMOR / IronClad Q1 2024 Constellation Clinton GNF NAC-LWT ORNL IronClad Zircaloy-2 Q2 2021 Constellation Byron Westinghouse NAC-LWT ORNL ADOPT/Coated Cladding High Burnup AXIOM and Zirlo Q4 2023 Constellation Byron Westinghouse NAC-LWT ORNL ADOPT/Coated Cladding High Burnup AXIOM and Zirlo Q4 2025 Constellation Byron Westinghouse NAC-LWT INL / ORNL High Burnup ADOPT/Coated Cladding Q4 2028 SNC Vogtle Westinghouse NAC-LWT INL / ORNL High Burnup ADOPT/Coated Cladding/LEU+
TBD Xcel Energy Monticello Framatome TBD PNNL Coated Cladding TBD Xcel Energy Monticello Framatome TBD PNNL Coated Cladding 2026 Constellation Clinton GNF NAC-LWT ORNL IronClad 2026 Constellation Limerick GNF NAC ORNL Zircaloy-2 High Burnup TBD Constellation Calvert Cliffs Framatome NAC-LWT INL / PNNL Coated Cladding (EOL)
Cr-Enhanced Pellets TBD Xcel Energy Monticello Framatome TBD PNNL Coated Cladding (EOL)
©2023 Nuclear Energy Institute 6 Updated ATF Safety and Economic Benefits Report (NEI 19-01 Revision 1)
ATF Commission Meeting: Commissioners asked questions regarding used fuel implications for ATF, LEU+, and HBU Added EPRI HBU & SFP study conclusions Added potential for expanded power uprates Added references found in literature Major conclusions from prior reports endure Updated ATF Benefits Report
©2023 Nuclear Energy Institute 7 NEI surveys for planning purposes:
- NEI report published: Survey Link Key takeaways:
- ~45% of sites have interest/planning for one or more enabling changes (ATF/LEU+, Extended Fuel Cycles, Risk-Informed LOCA) with deployment generally in 2028-30
- >50% of sites have a level of interest/planning for one or more power uprates with a combined capacity equivalent to 2 large LWRs Enabling Changes & Power Uprates
©2023 Nuclear Energy Institute 8 LEU+ UF6 transportation anticipated by early 2025:
- NRC CoC issued for Orano DN30-X (USA/9388/AF-96) on 3/27/23
- DN30-X packaging consists of the DN30 protective structural packaging and the 30B-X uranium hexafluoride (UF6) cylinder
- 30B-10 cylinder (with a maximum enrichment of 10 wt.% 235U)
EPRI HBU & SFP Inventory Management Scoping Study:
- Increased burnup offset by increased cooling time and enrichments
- Spent Fuel Pool (SFP) impacts appear small and manageable, occur gradually over multiple cycles
- Total transfer and dry storage dose rates may decline Front and Back-End Considerations
©2023 Nuclear Energy Institute 9 Fuel licensing infrastructure updates needed to support burnup and enrichment extensions beyond legacy limits in the mid-2020s:
- NRC Roadmap to Readiness Streamlined regulatory approaches that are timely to capture the safety, environmental, and economic benefits of LEU+ and HBU:
- EPRI Alternate Licensing Strategy Regulatory uncertainty surrounding the radiological source terms in RG 1.183 is a major hurdle for early adoption of ATF features:
- Revisions 1/2 are critical path to widespread adoption of ATF/LEU+/HBU Regulatory Stability and Predictability