소형 모듈 원자로 시장 기회, 성장요인, 업계 동향 분석 및 예측(2026-2035년)

The Global Small Modular Reactor Market was valued at USD 3.6 billion in 2025 and is estimated to grow at a CAGR of 12.7% to reach USD 15.6 billion by 2035.

The small modular reactor market is gaining significant momentum as countries strengthen their focus on clean electricity generation, energy security, and long-term decarbonization goals. Growing electricity consumption, driven by expanding digital infrastructure, transportation electrification, and industrial modernization, is creating sustained demand for reliable, low-carbon power generation technologies. Small modular reactors are increasingly recognized as an attractive solution because they combine dependable electricity generation with flexible deployment and reduced land requirements. Unlike conventional large-scale nuclear facilities, these reactors can be deployed in smaller capacity increments that better align with regional energy demand while minimizing the need for extensive transmission infrastructure upgrades. Ongoing progress in advanced reactor development, favorable regulatory frameworks, and increasing government support continue to improve commercialization prospects worldwide. The retirement of aging conventional power generation facilities is further accelerating demand for dependable baseload electricity, positioning small modular reactors as an important component of future energy systems. These structural market drivers continue to support long-term investment and strengthen growth opportunities across the global small modular reactor market.

The pressurized water reactor (PWR) segment accounted for 31% share in 2025 and is projected to register a CAGR of 16.3% through 2035. The segment maintains its leading position because pressurized water reactor technology benefits from extensive operational experience, well-established fuel management practices, proven safety frameworks, and mature engineering capabilities. This strong technological foundation allows developers to adapt existing expertise to compact reactor designs while supporting regulatory confidence and accelerating commercial deployment.

The power generation segment held 80% share in 2025 and is anticipated to grow at a CAGR of 16.7% during 2026-2035. Electricity production continues to be the primary application for most emerging small modular reactor designs, reflecting growing demand for stable and dispatchable low-carbon power. Increasing interest from energy-intensive industries in securing reliable electricity supplies is also supporting stronger investment in small modular reactor technologies, reinforcing long-term demand across the power generation segment.

North America Small Modular Reactor Market held a 47% share in 2025 and is expected to grow at a CAGR of 15.1% through 2035. The region continues to lead the market due to its advanced nuclear regulatory environment, strong government funding initiatives, expanding private-sector participation, and well-established commercial partnerships supporting reactor development and deployment. Continued investment in clean energy infrastructure and favorable policy support are expected to sustain North America's leadership throughout the forecast period.

Major companies operating in the global small modular reactor market include NuScale Power, TerraPower, Westinghouse Electric Company, GE Hitachi Nuclear Energy, Rolls-Royce SMR Ltd, X-energy, Holtec International, Kairos Power, ARC Clean Technology, Terrestrial Energy, Moltex Energy, Oklo Inc., ThorCon Power, Seaborg Technologies, Ultra Safe Nuclear Corporation, General Atomics, EDF, Rosatom (NIKIET), CNNC (China National Nuclear Corp), and Huaneng Group. Companies operating in the small modular reactor market are strengthening their competitive position by investing heavily in advanced reactor research, technology development, and commercialization initiatives. Manufacturers continue to focus on improving reactor safety, operational efficiency, and modular construction methods to reduce project costs and accelerate deployment timelines. Strategic collaborations with governments, utilities, engineering firms, and technology partners are supporting project development and expanding commercial opportunities.

Table of Contents

Chapter 1 Methodology & Scope

• 1.1 Research design
• 1.2 Quality commitment
  • 1.2.1 GMI AI policy & data integrity commitment
    • 1.2.1.1 Source consistency protocol
• 1.3 Research Trail & Confidence Scoring
  • 1.3.1 Research Trail Components
  • 1.3.2 Scoring Components
• 1.4 Data Collection
  • 1.4.1 Partial list of primary sources
• 1.5 Data mining sources
  • 1.5.1 Paid sources
    • 1.5.1.1 Sources, by region
• 1.6 Base estimates and calculations
  • 1.6.1 Base year calculation for any one approach
• 1.7 Forecast model
• 1.8 Research transparency addendum
  • 1.8.1 Source attribution framework
  • 1.8.2 Quality assurance metrics
  • 1.8.3 Our commitment to trust
• 1.9 Market definitions

Chapter 2 Executive Summary

• 2.1 Industry synopsis, 2022 - 2035
• 2.2 Business trends
• 2.3 Reactor type trends
• 2.4 Application trends
• 2.5 Connectivity trends
• 2.6 Location trends
• 2.7 Capacity trends
• 2.8 End use trends
• 2.9 Regional trends

Chapter 3 Industry Insights

• 3.1 Industry ecosystem
  • 3.1.1 Raw material availability & sourcing analysis
  • 3.1.2 Manufacturing capacity assessment
  • 3.1.3 Supply chain resilience & risk factors
  • 3.1.4 Distribution network analysis
• 3.2 Regulatory landscape
  • 3.2.1 North America
  • 3.2.2 Europe
  • 3.2.3 Asia Pacific
  • 3.2.4 Middle East & Africa
  • 3.2.5 Latin America
• 3.3 Industry impact forces
  • 3.3.1 Growth drivers
  • 3.3.2 Industry pitfalls & challenges
• 3.4 Growth potential analysis
• 3.5 Porter's analysis
  • 3.5.1 Bargaining power of suppliers
  • 3.5.2 Bargaining power of buyers
  • 3.5.3 Threat of new entrants
  • 3.5.4 Threat of substitutes
• 3.6 PESTEL analysis
  • 3.6.1 Political factors
  • 3.6.2 Economic factors
  • 3.6.3 Social factors
  • 3.6.4 Technological factors
  • 3.6.5 Legal factors
  • 3.6.6 Environmental factors
• 3.7 Cost structure analysis of small modular reactor
• 3.8 Price trend analysis (Driven by Primary Research)
  • 3.8.1 By capacity USD/MW (Driven by Primary Research)
  • 3.8.2 Pricing strategy by player type (Premium / Value / Cost-plus) (Driven by Primary Research)
• 3.9 Production capacity & utilization (Driven by Primary Research)
  • 3.9.1 Production capacity by region (Driven by Primary Research)
  • 3.9.2 Utilization rates (Driven by Primary Research)
• 3.10 Impact of AI & generative AI on the market
  • 3.10.1 Predictive maintenance & fault detection
  • 3.10.2 Grid optimization & load forecasting
  • 3.10.3 Digital twin simulation & testing
  • 3.10.4 Risks, limitations & regulatory considerations
• 3.11 Emerging opportunities & trends
  • 3.11.1 Digitalization & IoT integration
  • 3.11.2 Emerging market penetration
• 3.12 Overall investment scenario and future outlook

Chapter 4 Competitive landscape, 2026

• 4.1 Introduction
• 4.2 Company market share analysis, by region, 2025
  • 4.2.1 North America
  • 4.2.2 Europe
  • 4.2.3 Asia Pacific
  • 4.2.4 Middle East & Africa
  • 4.2.5 Latin America
• 4.3 Competitive analysis of major market players
• 4.4 Competitive positioning matrix
• 4.5 Key developments
  • 4.5.1 Mergers & acquisitions
  • 4.5.2 Partnerships & collaborations
  • 4.5.3 New product launches
  • 4.5.4 Expansion plans & funding
• 4.6 Company tier benchmarking
  • 4.6.1 Tier classification criteria & qualifying thresholds
  • 4.6.2 Tier positioning matrix by revenue, geography & innovation

Chapter 5 Market Size and Forecast, By Reactor type, 2022 - 2035 (USD Billion & MW)

• 5.1 Key trends
• 5.2 PWR
• 5.3 BWR
• 5.4 Fast neutron
• 5.5 HTGR
• 5.6 Molten salt / FHR
• 5.7 Others

Chapter 6 Market Size and Forecast, By Application, 2022 - 2035 (USD Billion & MW)

• 6.1 Key trends
• 6.2 Power generation
• 6.3 Industrial & process heat
• 6.4 Hydrogen production
• 6.5 Desalination & water treatment
• 6.6 Research / demonstration

Chapter 7 Market Size and Forecast, By Connectivity, 2022 - 2035 (USD Billion & MW)

• 7.1 Key trends
• 7.2 Grid-connected
• 7.3 Off-grid / remote

Chapter 8 Market Size and Forecast, By Location, 2022 - 2035 (USD Billion & MW)

• 8.1 Key trends
• 8.2 Land-based
• 8.3 Marine-based / floating

Chapter 9 Market Size and Forecast, By Capacity, 2022 - 2035 (USD Billion & MW)

• 9.1 Key trends
• 9.2 Below 50 MW
• 9.3 50-100 MW
• 9.4 101-300 MW
• 9.5 Above 300 MW

Chapter 10 Market Size and Forecast, By End use, 2022 - 2035 (USD Billion & MW)

• 10.1 Key trends
• 10.2 Utilities
• 10.3 Government / state enterprises
• 10.4 Industrial operators
• 10.5 Data centers
• 10.6 Others

Chapter 11 Market Size and Forecast, By Region, 2022 - 2035 (USD Billion & MW)

• 11.1 Key trends
• 11.2 North America
  • 11.2.1 U.S.
  • 11.2.2 Canada
• 11.3 Europe
  • 11.3.1 UK
  • 11.3.2 Poland
  • 11.3.3 Romania
  • 11.3.4 Russia
  • 11.3.5 France
• 11.4 Asia Pacific
  • 11.4.1 China
  • 11.4.2 South Korea
  • 11.4.3 Japan
  • 11.4.4 India
• 11.5 Middle East & Africa
  • 11.5.1 Saudi Arabia
  • 11.5.2 UAE
  • 11.5.3 South Africa
• 11.6 Latin America
  • 11.6.1 Argentina
  • 11.6.2 Brazil

Chapter 12 Company Profiles

• 12.1 ARC Clean Technology
• 12.2 CNNC
• 12.3 EDF
• 12.4 GE Hitachi Nuclear Energy
• 12.5 General Atomics
• 12.6 Holtec International
• 12.7 Huaneng Group
• 12.8 Kairos Power
• 12.9 Moltex Energy
• 12.10 NuScale Power
• 12.11 Oklo Inc.
• 12.12 Rolls-Royce SMR Ltd
• 12.13 Rosatom
• 12.14 Seaborg Technologies
• 12.15 TerraPower
• 12.16 Terrestrial Energy
• 12.17 ThorCon Power
• 12.18 Ultra Safe Nuclear Corporation
• 12.19 Westinghouse Electric Company
• 12.20 X-energy