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USA

Total projects
20
Under construction
3
Companies
15
Upcoming reg. events
0

Nuclear overview

USA has 20 SMR projects tracked on SMR Brief Pro, ranging from Planning to Under Construction.

Nuclear Readiness Score

7.7/10
Regulatory: 8Political: 7Grid: 8Public: 6Financing: 8Experience: 9

The USA has a robust regulatory framework and extensive nuclear experience, making it well-positioned for SMR deployment. While political support and financing are strong, public acceptance remains a moderate challenge that could impact project timelines.

Score updated Jun 22, 2026

Projects in USA

Terrestrial Energy IMSR Texas A&M-RELLIS
Terrestrial Energy
Planning
390 MWe
Palisades Pioneer SMR Project
Holtec International
Planning
680 MWe
TMI Unit 1 Restart (Crane Clean Energy Center)
Constellation Energy
Planning
835 MWe
Zeno Power Vallecitos Facility
Zeno Power
Planning
0 MWe
Natura Resources HALEU Offtake
Natura Resources
Planning
1 MWe
Elementl Power BWRX-300 Ohio
Elementl Power
Planning
300 MWe
Holtec Palisades Pioneer
Holtec International
Planning
680 MWe
Zeno Power Nuclear Battery Plant
Zeno Power
Planning
1 MWe
Pioneer SMR Project
Palisades SMR, LLC
Planning
600 MWe
Elementl Power BWRX-300 SMR Project
Elementl Power / GE Vernova Hitachi Nuclear Energy
Planning
1500 MWe
Oklo Aurora Powerhouse - Southern Ohio
Oklo Inc.
Planning
1200 MWe
Terrestrial Energy IMSR - Texas A&M-RELLIS
Terrestrial Energy
Planning
390 MWe
Elementl Power Ohio SMR Project
Elementl Power
Planning
1500 MWe
Elementl Power Ohio Nuclear Plant
Elementl Power, GE Vernova Hitachi Nuclear Energy
Planning
1500 MWe
Blue Energy GE Vernova Hybrid Gas-Plus-Nuclear Plant
Blue Energy, GE Vernova
Planning
2500 MWe
V.C. Summer Nuclear Units 2 and 3
Brookfield Asset Management, The Nuclear Company
Planning
2300 MWe
Crane Clean Energy Center
Constellation Energy
Approved
835 MWe
Ward 250
Valar Atomics
Under Construction
250 MWe
Valar Atomics Ward 250
Valar Atomics
Under Construction
5 MWe
TerraPower Natrium - Kemmerer
TerraPower
Under Construction
345 MWe

Companies headquartered in USA

Antares Nuclear Inc.
California
Microreactor
Applied Atomics
United States
mPower SMR (land-based)
Centrus Energy Corp
Bethesda, Maryland, USA
Uranium enrichment
Centrus Energy Corp.
Bethesda, Maryland
Uranium enrichment, HALEU production
Eden Radioisotopes LLC
Lea County, New Mexico
Medical isotope production facility with 1.8 MWt reactor
Elemental Power
—
Nuclear project developer (BWRX300)
Energy Fuels Inc
Lakewood, Colorado, USA
Conventional uranium mining and milling
Exodys Energy
New York, New York
Nuclear fuel recycling
Pacific Fusion
Fremont, California
Pulser-driven inertial fusion
Palisades SMR, LLC
Michigan
SMR-300 small modular reactor
Paragon Energy Solutions
Fort Worth, Texas
Nuclear Instrumentation and Control
SHINE Technologies
Janesville, Wisconsin
Fusion and fuel recycling
Standard Nuclear
—
TRISO Fuel Manufacturing
Uranium Energy Corp
Corpus Christi, Texas, USA
In-Situ Recovery
Zeno Power
Austin, Texas
Radioisotope Power Systems

SMR Brief Pro members also see:

  • Regulatory Calendar for USA
  • Funding & Grants available in USA
  • Deals involving USA
  • Country Readiness Score

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