The US Small Modular Reactor Market was valued at $1002.7 Million in 2024 and projected to reach to $1263.6 Million by 2029, representing a compound annual growth rate of CAGR 3.9%. The US Small Modular Reactor market is poised for steady expansion through 2029, driven by favorable regulatory environments, substantial government incentives, and growing demand for clean baseload power.
| Market Size in | USD 26.32 MN |
| Market Forecast in | |
| CAGR | |
| Forecast Period | |
| Units Considered | Value (USD MN) |
The US SMR market is valued at $1,002.7 million in 2024, representing a mature and growing segment within the broader nuclear energy sector with significant capital investment potential.
With a CAGR of 3.9% through 2029, the US market is expanding faster than the global average of 3%, driven by domestic policy support and energy independence initiatives.
The US benefits from substantial federal backing, advanced nuclear regulatory frameworks, and existing infrastructure, positioning it as a leader in SMR commercialization and deployment.
Increasing concerns over energy security, grid resilience, and decarbonization are accelerating SMR adoption across US industrial, utility, and remote location applications.
| Report Metric | Details |
|---|---|
| Base Year | 2024 |
| Fastest Growing Segment | POWER GENERATION (Application) |
| Forecast Period | 2024-2029 |
| Growth Rate | CAGR of 3% from 2024 to 2029 |
| Largest Segment | MULTI-MODULE POWER PLANTS (Deployment) |
| Market Size Base Year (Billions) | ~USD 5.98 (2024) |
| Revenue Forecast (Billions) | ~USD 6.93 (2029) |
| Segments Covered | Power Rating, Coolant, Type, Deployment, Connectivity, Application |
6 segment dimensions are covered across the global market.
| Segment | 2024 | 2025 | 2026 | 2027 | 2028 | 2029 | 2030 | CAGR (%) |
|---|---|---|---|---|---|---|---|---|
| DESALINATION | 195.9 | 203.8 | 212 | 220.7 | 229.8 | 239.5 | 249.2 | 4.1 |
| HYDROGEN PRODUCTION | 72.2 | 73.4 | 74.6 | 75.7 | 76.9 | 78 | 79.1 | 1.5 |
| INDUSTRIAL | 393.3 | 406.7 | 420.8 | 435.9 | 451.5 | 468 | 484.4 | 3.5 |
| POWER GENERATION | 341.4 | 357.4 | 374.3 | 392 | 410.7 | 430.6 | 450.9 | 4.7 |
| TOTAL | 1002.7 | 1041.2 | 1081.7 | 1124.2 | 1169 | 1216.1 | 1263.6 | 3.9 |
The US SMR market is valued at $1,002.7 million in 2024 and is expected to grow to $1,263.6 million by 2029.
The US SMR market is projected to grow at a compound annual growth rate (CAGR) of 3.9% from 2024 to 2029.
Key drivers include federal incentives such as the Inflation Reduction Act, decarbonization goals, energy security concerns, industrial heat applications, and substantial government and private investment in nuclear innovation.
The US is home to multiple leading SMR developers including NuScale Power, X-energy, Terrestrial Energy, and others advancing various SMR designs and commercialization strategies.
The US represents a significant share of the global SMR market, with advanced regulatory frameworks, substantial funding, and a concentration of leading technology developers positioning it as a critical market for SMR growth.
The study involved major activities in estimating the current size of the small modular reactor market. Exhaustive secondary research was done to collect information on the peer and parent markets. The next step was to validate these findings, assumptions, and sizing with industry experts across the value chain through primary research. Both top-down and bottom-up approaches were employed to estimate the total market size. Thereafter, market breakdown and data triangulation were used to estimate the market size of the segments and subsegments.
Secondary sources referred to for this research study include annual reports, press releases, and investor presentations of companies; white papers; certified publications; articles by recognized authors; and databases of various companies and associations. Secondary research was mainly used to obtain key information about the industry’s supply chain, the total pool of key players, market classification, and segmentation according to industry trends to the bottom-most level, regional markets, and key developments from both, market- and technology-oriented perspectives.
In the primary research process, various primary sources from the supply and demand sides were interviewed to obtain qualitative and quantitative information for this report. Primary sources from the supply side include industry experts such as chief executive officers (CEOs), vice presidents (VPs), marketing directors, and related key executives from various companies and organizations operating in the small modular reactors market.
In the complete market engineering process, the top-down and bottom-up approaches, along with several data triangulation methods, were extensively used to perform the market size estimations and forecasts for all segments and subsegments listed in this report. Extensive qualitative and quantitative analyses were conducted to complete the market engineering process and list key information/insights throughout the report. Following is the breakdown of primary respondents:
Note: Other designations include sales managers, engineers, and regional managers.
The tier of the companies is defined based on their total revenue; as of 2023: Tier 1 = > USD 1 billion, Tier
2 = From USD 500 million to USD 1 billion, and Tier 3 = < USD 500 million.
To know about the assumptions considered for the study, download the pdf brochure
Both top-down and bottom-up approaches were used to estimate and validate the size of the small modular reactors market. These methods were also used extensively to estimate the size of various subsegments in the market. The research methodology used to estimate the market size includes the following:

After arriving at the overall market size from the estimation process explained below, the total market was split into several segments and subsegments. The data triangulation and market breakdown procedures were employed, wherever applicable, to complete the overall market engineering process and arrive at the exact statistics for all segments and subsegments. The data was triangulated by studying various factors and trends from both the demand and supply sides. The market size was validated using the top-down and bottom-up approaches.
According to the World Nuclear Association, “Small modular reactors (SMRs) are defined as nuclear reactors generally 300 MWe equivalent or less, designed with modular technology using module factory fabrication, pursuing economies of series production and short construction times.” SMRs vary in terms of size and thermal output. These reactors can be used for various applications, such as power generation, process heating, desalination, and industrial uses. Their designs may employ light water as a coolant or other coolants, such as gases, liquid metals, or molten salts. Small modular reactors offer multiple benefits, such as small physical footprints, reduced capital investments compared with traditional nuclear power plants, the ability to be sited in locations not possible for larger nuclear plants, and provisions for incremental power additions.
The small modular reactors market size is defined as the sum revenue generated by global companies' manufacturing small modular reactors.
With the given market data, MarketsandMarkets offers customizations according to the specific requirements of companies. The following customization options are available for the report:
Full forecast, segment splits, and company analysis for all Small Modular Reactor Market.
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