ML25189A246
| ML25189A246 | |
| Person / Time | |
|---|---|
| Issue date: | 06/30/2025 |
| From: | Jon Greives Office of Nuclear Reactor Regulation |
| To: | |
| References | |
| Download: ML25189A246 (1) | |
Text
Advanced Reactor Program Update National Meeting-State Liaison Officers June 2025 Jon Greives Deputy Director Division of Advanced Reactors and Non-Power Production and Utilization Facilities Office of Nuclear Reactor Regulation Nuclear Regulatory Commission
10 CFR Part 52 Vogtle AP-1000, NuScale Early Site Permit, COL, Design Certification, Manuf. License 10 CFR Part 53 New licensing framework under development Technology-inclusive, risk-informed, performance-based framework Publish by mid-2025 Flexible Reactor Licensing Pathways Licensing Process Brochure (NUREG/BR-0298) 10 CFR Part 50 Large majority of operating power reactor and NPUF fleet Construction Permit + Operating License
Vendors/Applicants Construction Permit Applications Issued Fuel Fabrication Review License Reviews in Progress Ongoing Preapplication Activities/Potential Applications
Current Fleet (Large LWRs)
NuScale US460 (6 Pack)
Design:
- 77 MWe each, 462 MWe total
- Light water SMR
- Fully Passive Safety Systems Licensing:
- Standard Design Approval submitted in July 2023 Source: © Nuscale Power, LLC
Clinch River (GE/Hitachi BWRX-300)
Location: Clinch River (Oak Ridge, TN)
Design:
- 300 MWe
- Natural Circulation, Boiling Water Reactor
- Fully Passive Safety Systems Licensing:
Kemmerer Power Station (TerraPower Natrium)
Location: Kemmerer, WY Design:
- Sodium cooled, fast reactor, metal fuel (U-Zr)
- 345 MWe (840 MWth) reactor design, can be ramped to higher levels using heat storage of molten salt intermediate loop
- Functional Containment Licensing:
- CP application (Part 50) submitted in 2024 for use in 2026 Source: TerraPower
Kairos Power Fluoride Cooled Reactor Location: Oak Ridge, TN Design:
molten Fluoride salt cooled TRISO pebble fueled 150 Mwe Licensing:
CP for Hermes-1 issued in 2023 CP for Hermes-2 issued in 2024 Source: Kairos Power
Project Long Mott (X-energy Xe-100)
Location: Seadrift, TX (NE of Corpus Christi)
Design: Xe-100 High Temperature Gas-Cooled Reactor Helium cooled 80 MWe reactor design, sold as a 4 pack for 320 MWe.
TRISO pebble fueled. Online refueling Licensing:
CP application (Part 50) submitted in March 2025 Source: X-Energy
TRISO Fuel (TRi-structural ISOtropic particle fuel)
Photo courtesy of DOE Robust TRISO Fuel Research
Westinghouse eVinci Design:
Heat pipe cooled (Na) 5 MWe TRISO fueled Passive heat removal Transportable, 8+ year operating cycle Source: Westinghouse
Radiant Kaleidos Transportable micro-reactor 3MWth and approximately 1MWe High-temperature gas-cooled reactor TRISO fuel, Helium gas coolant Passive heat removal via air convection Each micro-reactor will be fully contained in a single shipping container.
Source: Radiant
Deployment Model Shifts A completed reactor being shipped from a manufacturer to the construction site Source: © Nuscale Power, LLC Source: DOE
Statistics since 2018 Our Accomplishments Addressing more than 35 policy issues &
created more than 60 guidance documents 10 NRC/DOE MOUs focused on advanced reactor collaboration Developed 10 work plans &
issued 8 joint reports with Canada Completed more than 10 advanced reactor design computer models Engaged with 20+ vendors in licensing/
preapplication activities More than 140 public engagements a year on advanced reactor topics Completed Kairos Hermes 1, Hermes 2, and ACU construction permit safety reviews faster than the generic schedule goal Reviewed more than 90 topical report/white paper 33% faster than the generic schedule
o Part 53 o Physical Security o Emergency Preparedness o Generic Environmental Impact Statement o Siting o Part 50/52 alignment o Construction Oversight (ARCOP) o Fees o Fusion o Guidance (TICAP/ARCAP) o Microreactors Framework Modernization T R A N S F O R M AT I O N
The Future of Construction Oversight Risk-Inform e d Te c hnolog y Inc lusive Inform e d b y Exp e rie nc e Innova tive Pe rform a nc e - Ba se d Sc a la b le Com p re he nsive SECY-23-0048
Security &
Safeguards Transportation Decommissioning Staffing &
Operations Risk Analysis Methods Inspection
& Oversight Emergency Preparedness Siting Graded Site Characterization Annual Fees Remote and Autonomous Operations Spent Fuel Storage Aircraft Impact Assessments Maritime Space Document Processing Mobile Deployment Alternative Licensing Strategies Timeframe for Authorization to Operate Decommissioning Funding Assurance Materials Control and Accounting Factory Fuel Loading Operational Testing in a Factory Integrated Plan Microreactors
Ensuring Safety Ahead of Schedule & Under Budget Regulatory Review Project Planned Review Schedule Executed Safety Review Schedule
% Under Resource Estimate Kairos Hermes 1 (CP) 21 months 18 months 6%
Kairos Hermes 2 (CP) 14 months 10 months 43%
Abilene Christian University Molten Salt Research Reactor (CP) 22 months 21 months 13%
NuScale (SDA) 24 months 22 months 13%
Recent Experience Informing Current Execution Regulatory Review Project Generic NEIMA Milestone Planned Review TerraPower Kemmerer Unit 1 Construction Permit 36 months 18 Months Long Mott Generating Station Construction Permit 36 months 18 months 20+ vendors engaged in pre-application activities with the NRC
Evolving to Meet Future Demand Ensure Sufficient Staff Capacity Establish Appropriate Regulatory Landscape Strive for Continual Improvement Effective Process Implementation Communicate Effectively with Stakeholders
Advance Reactors Find out more
THANK YOU Nuclear Regulatory Commission