ML23184A128

Advanced Reactors

ML23184A128
Person / Time
Issue date:	06/07/2023
From:	Hayes M, Stephen Philpott Office of Nuclear Reactor Regulation
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Download: ML23184A128 (1)

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Advanced Reactors Michelle Hayes Division of New and Renewed Licenses Steve Philpott Division of Advanced Reactors and Non-power Production and Utilization Facilities Office of Nuclear Reactor Regulation US Nuclear Regulatory Commission 1

Vision Creating new paradigms to make the SAFE use of nuclear technologies POSSIBLE 2

Reactor Concepts Light Water Small Non-Light Water Modular Reactors Advanced Reactors (SMR) (non-LWR)

Compact LWR designs generating 300 Non-LWR designs ranging from 1 MWe MWe or less microreactors to several hundred MWe power stations 3

Advanced Reactor Landscape Small Modular Light Liquid Metal Cooled Fast High-Temperature Gas- Molten Salt Reactors Micro Water Reactors (SMR) Reactors (LMFR) Cooled Reactors (MSR) Reactors (HTGR)

Kairos

• Westinghouse (eVinci)*

NuScale US600 TerraPower/GEH Natrium* X-energy

• Kairos (Hermes l RTR) BWX Technologies NuScale US460 GEH PRISM (VTR) Framatome Liquid Salt Cooled X-energy Advanced Reactor Concepts

• StarCore Holtec SMR-160* Radiant l RTR MIT Sodium-Cooled Terrestrial

• Transportable Westinghouse AP300 Pressurized Water TRISO Fuel TerraPower (MCFR)

Reactors Westinghouse UIUC / Ultra Safe l RTR*

Southern (TP MCRE) l RTR Columbia Basin General Atomics (EM2)

• ACU l RTR Oklo

• GEH BWRX-300* Hydromine General Atomics* Elysium Stationary Lead-Cooled Boiling Water Reactor ThorCon Muons LEGEND ARDP Awardees DC Design Certification Flibe Demo Reactors Alpha Tech In Licensing Review Liquid Salt Fueled Risk Reduction

• Preapplication ARC-20 RTR Research/Test Reactor 4

Small Modular Light Water Reactors (SMR)

Pressurized Water Reactors NuScale US600 - certified design NuScale US460 - under review Holtec SMR-160 - preapplication Westinghouse AP300 SMR Westinghouse AP300 SMR Boiling Water Reactor GEH BWRX-300 preapplication GEH BWRX-300 Adv Rx Demo Program - Risk Reduction NuScale US460

Liquid Metal Cooled Fast Reactors TerraPower/GEH Natrium -

preapplication GEH PRISM - Versatile Test Reactor Advanced Reactor Concepts ARC-100 - preapplication Adv Rx Demo Program - Demo Rx Adv Rx Demo Program - ARC 20 Advanced Reactor Concepts ARC-100 TerraPower/GEH Natrium

High-Temperature Gas-Cooled Reactors (HTGR)

TRISO Fueled X-energy Xe-100 - preapplication Framatome StarCore MIT General Atomics (EM2)

• General Atomics - preapplication Adv Rx Demo Program - Demo Rx X-energy Xe-100 Adv Rx Demo Program - ARC 20 General Atomics Fast Modular Reactor (FMR)

Molten Salt Reactors (MSR)

Fluoride Salt Cooled; TRISO Fueled Kairos KP-FHR - preapplication Kairos Hermes RTR- under review Liquid Salt Fueled Terrestrial IMSR - preapplication TerraPower (MCFR) Kairos KP-FHR Southern (TP MCRE) l RTR ACU MSRR l RTR - under review Kairos Hermes Elysium ThorCon Muons Flibe Alpha Tech Adv Rx Demo Program - Risk Reduction Abilene Christian University MSRR Terrestrial IMSR

Micro-reactors Transportable, TRISO fueled Westinghouse eVinci -

preapplication BWX Technologies Oklo X-energy Radiant l RTR Westinghouse eVinci -

Stationary, TRISO fueled UIUC / Ultra Safe l RTR -

preapplication Stationary, metallic fuel Stationary Oklo - preapplication University of Illinois at Urbana-Champaign / Ultra Safe Adv Rx Demo Program - Risk Reduction

Licensing and Deployment of Factory Fabricated and Transportable Micro-Reactors

• The NRC staff is continuing to develop topics related to licensing and deployment of factory-fabricated transportable micro-reactors to identify policy issues and options to address them:

• Loading fuel and performing low-power testing at a manufacturing facility

• Timelines for ITAAC closure, hearings, and 52.103(g) findings

• Licensing replacement of reactor modules

• Transportation of fueled reactor modules

• Remote and autonomous operations and related cybersecurity considerations

• Decommissioning process/funding assurance 10

Proposed Locations CFPP (NuScale)

TerraPower SHINE UIUC Kairos Hermes Clinch River ACU Eielson AFB X-energy / Dow 11

10 CFR Part 50: Two-Step Licensing Process Construction Permit Public Construction Construction Construction Application Hearing Permit Begins Permit Operating Operating License Public Hearing Operating Operation License Begins License Application Opportunity 12

10 CFR Part 52: New Reactor Licensing Process This process may involve the following:

• Combined License (COL)

• Early Site Permit (ESP)

• Design Certification (DC)

• Standard Design Approval (SDA)

• Manufacturing License 13

Part 53: Transformative Regulatory Frameworks

• Technology-Inclusive: Can be used for any new light water small modular reactor or non-light water reactor technology.

• Risk-Informed: Requirements scaled to risk and consequences of the facility

• Performance-Based: Establishes clear and objective criteria to assess performance Framework A Framework B o Probabilistic Risk Assessment in o Probabilistic Risk Assessment in a leading role to develop licensing supporting role basis and safety case o Align with IAEA Safety Standards 14

More Information and Updates New Reactors https://www.nrc.gov/reactors/new-reactors.html Licensing Activities for Advanced Reactors (Non-LWR) https://www.nrc.gov/reactors/new-reactors/advanced/licensing-activities.html Licensing Activities for Small Modular Reactors https://www.nrc.gov/reactors/new-reactors/smr/licensing-activities.html Email Subscription Services Follow through GovDelivery or Lyris

Rulemaking Updates Rulemaking and Guidance for Advanced Reactors https://www.nrc.gov/reactors/new-reactors/advanced/rulemaking-and-guidance.html NRC Rules and Petitions https://www.nrc.gov/about-nrc/regulatory/rulemaking/rules-petitions.html Planned Rulemaking Activities - Rules https://www.nrc.gov/reading-rm/doc-collections/rulemaking-ruleforum/active/ruleindex.html 16

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