Nuclear Steam Generator Market - Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented, By Reactor Type (Pressurized Water Reactors (PWRs), Boiling Water Reactors (BWRs), CANDU Reactors, Advanced Gas-cooled Reactors (AGRs), Sodium Fast Reactors (SFRs)), By Material (Alloy 800H, Alloy 690TT, Stainless Steel 316L, Titanium Alloys, Nickel Alloys), By Design Type (Once-Through Steam Generators (OTSGs), U-Tube Steam Generators (UTSGs), Helical-Coil Steam Generators (HCSGs), Compact Steam Generators (CSGs)), By Region, By Competition, 2020-2030F

Market Overview

The Nuclear Steam Generator Market was valued at USD 4.94 Billion in 2024 and is expected to reach USD 7.11 Billion by 2030 with a CAGR of 6.09%. The Nuclear Steam Generator Market refers to the specialized segment of the nuclear power industry dedicated to the design, manufacturing, deployment, maintenance, and replacement of steam generators, which are critical components within pressurized water reactors (PWRs) and certain other nuclear reactor types, responsible for transferring heat produced during nuclear fission to the secondary side for steam production, thereby driving turbines to generate electricity.

Nuclear steam generators serve as a crucial interface between the primary reactor coolant system and the secondary power generation cycle, ensuring efficient thermal energy transfer while providing an essential barrier that isolates radioactive material from the external power generation process, thereby contributing to both operational safety and efficiency. This market encompasses a broad value chain, including original equipment manufacturers (OEMs), engineering and construction companies, nuclear operators, maintenance and service providers, and suppliers of specialized materials designed to withstand extreme pressure, temperature, and radiation conditions.

The demand for nuclear steam generators is driven by several factors such as the expansion of nuclear power capacity worldwide, the modernization and replacement of aging reactor infrastructure, increasing emphasis on carbon-neutral energy solutions, and technological advancements aimed at improving generator performance, reliability, and lifespan. The market is also shaped by stringent regulatory requirements, as steam generators are vital safety-class components, requiring high standards of design validation, inspection, and quality assurance.

Key Market Drivers

Rising Global Energy Demand and Need for Clean, Reliable Power

The Nuclear Steam Generator market is witnessing strong momentum as rising global energy demand, coupled with the urgent need for clean and reliable power, accelerates nuclear power adoption as a long-term solution to energy security challenges. With populations expanding, urbanization intensifying, and industrialization advancing at an unprecedented pace, electricity demand continues to surge worldwide, pushing governments and utilities to explore sustainable power generation methods beyond conventional fossil fuels. Nuclear energy is increasingly being recognized as a stable and low-carbon source that can provide baseload electricity generation without the volatility of weather-dependent renewables.

This has positioned nuclear steam generators as critical components within the nuclear power infrastructure, responsible for efficiently transferring heat from the reactor core to produce steam that drives turbines and generates electricity. As nations work toward ambitious climate goals and carbon neutrality commitments, the deployment of nuclear power plants is accelerating, boosting demand for next-generation steam generators designed to operate with greater efficiency, durability, and safety. Additionally, the geopolitical push for energy independence is prompting both developed and emerging economies to diversify their energy mix with nuclear power, reducing dependence on imported fossil fuels and mitigating price fluctuations.

Nuclear steam generators are central to this strategy, as they ensure reliable plant operations while meeting stringent environmental and safety standards. Furthermore, the modernization of existing nuclear facilities through refurbishment and lifetime extension programs is driving the replacement and upgrading of steam generators, ensuring long-term operational efficiency. The combination of increasing power demand, clean energy transitions, and the role of nuclear energy in delivering stable electricity supply is creating a sustained growth trajectory for the global nuclear steam generator market. Global electricity demand is projected to surpass 30,000 TWh by 2030, reflecting the increasing reliance on electrification across industries and households. The world’s installed renewable energy capacity has already crossed 3,000 GW globally, with strong growth in solar, wind, and hydropower. Over 70% of new power generation capacity additions worldwide are coming from clean energy sources, highlighting the shift toward sustainability. Global investment in clean energy technologies exceeded USD 1 trillion annually, underlining the demand for reliable and greener power infrastructure. By 2040, nearly 50% of the world’s electricity is expected to come from renewable and low-carbon sources, strengthening the need for advanced power systems.

Technological Advancements and Innovation in Nuclear Reactor Design

The Nuclear Steam Generator market is also being propelled by rapid technological advancements and innovations in nuclear reactor design, which are significantly transforming operational efficiency, safety standards, and overall plant economics. With energy markets demanding more sustainable and cost-effective power solutions, manufacturers and research institutions are investing heavily in the development of advanced steam generator technologies that align with evolving nuclear plant requirements. Modern steam generators are now being designed with enhanced thermal efficiency, improved corrosion resistance, and longer service lifespans to reduce maintenance needs and increase overall plant availability.

Innovations such as modular steam generator designs are streamlining the construction and installation process, enabling nuclear plants to reduce downtime and accelerate deployment timelines. At the same time, advanced materials such as nickel-based alloys are being integrated into steam generator tubes and components to withstand extreme operating conditions, thereby reducing the risk of failures and extending operational cycles.

The introduction of small modular reactors (SMRs) and next-generation advanced reactor technologies is further driving demand for highly flexible, compact, and efficient steam generators capable of meeting diverse application requirements across different energy markets. Digitalization and predictive maintenance technologies, powered by AI and IoT-based monitoring systems, are revolutionizing steam generator operations by enabling real-time performance tracking, early fault detection, and proactive maintenance strategies.

These advancements not only optimize plant performance but also reduce overall operational costs, making nuclear power more economically competitive with alternative energy sources. Additionally, the increased emphasis on safety and regulatory compliance is encouraging innovation in steam generator designs that incorporate multiple layers of protection, automated safety systems, and enhanced redundancy. The convergence of advanced engineering, digitalization, and materials science is therefore reshaping the nuclear steam generator market, ensuring that new and existing nuclear facilities are equipped to meet the future demands of sustainable, safe, and efficient energy generation. Global R&D spending on technological innovation exceeded USD 2.5 trillion in 2024, reflecting continuous investment in advanced solutions. More than 60% of enterprises worldwide adopted emerging technologies such as AI, IoT, and cloud-based platforms to enhance efficiency. The global digital transformation market is projected to surpass USD 3 trillion by 2030, driven by rapid innovation. Around 70% of new product launches globally are influenced by technological advancements in automation and data analytics. Over 5 billion connected devices are currently deployed worldwide, showcasing the pace of digital innovation and integration. Technological innovations are expected to improve global productivity levels by 20–25% within the next decade.

Government Policies, Investments, and Nuclear Energy Programs

Another major driver fueling the Nuclear Steam Generator market is the strong support from governments and international energy programs that are prioritizing nuclear power development as part of their long-term energy strategy. Policymakers across the globe are increasingly acknowledging the role of nuclear energy in achieving decarbonization targets, securing energy independence, and providing stable baseload electricity to complement renewable energy integration. As a result, substantial investments are being directed toward both the construction of new nuclear power plants and the modernization of existing facilities, thereby stimulating demand for steam generators.

National nuclear programs are being expanded across key regions, with multiple projects planned or underway to replace aging reactors and deploy advanced reactor designs. This surge in activity directly translates into heightened demand for new steam generator units as well as refurbishment services for existing reactors. Furthermore, international collaboration and government-backed financing mechanisms are reducing barriers for emerging economies to enter the nuclear power sector, creating a new wave of opportunities for steam generator manufacturers and suppliers. Policy frameworks promoting clean energy transitions are also incentivizing utilities to adopt nuclear power as a complement to renewables, further boosting steam generator demand.

In addition, public-private partnerships and state-backed research initiatives are driving technological innovation in steam generator design, ensuring compliance with evolving safety standards while enhancing cost efficiency. Governments are also offering regulatory clarity and long-term commitments to nuclear energy, encouraging private sector participation and investment. Beyond direct financial support, initiatives aimed at workforce development, nuclear safety training, and international cooperation are strengthening the overall nuclear ecosystem, ensuring sustainable growth for the sector. Collectively, these policy-driven efforts are reinforcing the position of nuclear power within global energy planning, and by extension, fueling robust demand for nuclear steam generators that form the backbone of efficient plant operations.

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Key Market Challenges

High Capital Costs and Complex Regulatory Environment

The nuclear steam generator market faces a significant challenge in the form of extremely high capital costs coupled with the intricate regulatory environment governing nuclear projects worldwide. Nuclear steam generators are critical components within pressurized water reactors, requiring highly specialized design, advanced metallurgy, and rigorous quality assurance processes to ensure reliability and safety. This makes their development, manufacturing, and installation exceedingly costly compared to conventional power generation equipment. Beyond direct production costs, companies must navigate an exhaustive network of national and international nuclear safety standards, licensing procedures, and inspection protocols, which vary widely across jurisdictions.

Each project often involves years of planning, certification, and compliance audits, stretching lead times and inflating overall project budgets. The financial burden is further compounded by the costs of long-term operation, monitoring, and eventual decommissioning, all of which must be considered upfront. These high entry barriers discourage smaller players and limit competition, resulting in market dominance by only a handful of established firms with the resources and expertise to meet stringent requirements. Furthermore, financing such projects is a daunting task, as investors often hesitate to commit capital to nuclear infrastructure due to perceptions of risk, uncertainty about long-term returns, and growing focus on renewable alternatives. This challenge is magnified by political debates around nuclear energy, where shifts in government policy or public sentiment can delay approvals or halt projects altogether.

The cumulative effect is a bottleneck in new installations and replacements of nuclear steam generators, with many utilities deferring upgrades due to cost concerns. As global demand for cleaner energy intensifies, the inability of the nuclear sector to compete economically with lower-cost renewables and gas-fired power creates a fundamental obstacle to growth in the nuclear steam generator market. Companies in this sector must therefore strike a balance between delivering technologically advanced, safety-compliant equipment and finding innovative ways to reduce costs and shorten timelines to maintain competitiveness in an increasingly price-sensitive energy landscape.

Aging Infrastructure and Operational Risks

Another critical challenge confronting the nuclear steam generator market lies in managing aging infrastructure and addressing the associated operational risks. A large proportion of the world’s nuclear reactors were constructed in the 1970s and 1980s, meaning that many steam generators are now operating well beyond their original design lifespans. As these components age, they become more susceptible to wear, corrosion, and material degradation, particularly in tubes and welds, which are exposed to extreme pressure, heat, and radiation over decades of operation. These vulnerabilities increase the risk of unplanned outages, costly repairs, and, in the worst-case scenario, severe safety incidents that can undermine public trust in nuclear power altogether.

The challenge is intensified by the technical complexity of inspecting and maintaining steam generators within operational reactors, as even minor maintenance activities require meticulous planning, specialized tools, and compliance with strict safety standards. Replacement projects are equally daunting, often necessitating partial plant shutdowns that disrupt electricity supply and entail major financial losses for operators. Furthermore, the scarcity of highly skilled personnel with the expertise to carry out maintenance and refurbishment exacerbates the challenge, particularly as experienced engineers and technicians retire. The reputational risk tied to operational failures adds further strain on the market, as public and political opposition to nuclear power can quickly escalate in response to any perceived safety issues.

This is especially concerning in regions where nuclear power is under increased scrutiny compared to renewable energy, placing further pressure on operators to justify continued investment in nuclear infrastructure. Additionally, while modern designs and materials offer improvements in durability, retrofitting aging systems with the latest technologies is costly and technically challenging, limiting adoption. In effect, the combination of aging assets, high maintenance demands, and safety risks constrains the pace of market growth, as utilities weigh the costs of replacement or refurbishment against broader energy transition priorities. For the nuclear steam generator market, addressing these challenges requires sustained investment in innovation, predictive maintenance technologies, and workforce training programs to mitigate risks and ensure long-term operational reliability in a sector where public safety and trust are paramount.

Key Market Trends

Increasing Emphasis on Long-Term Plant Life Extension and Modernization

One of the most significant trends shaping the nuclear steam generator market is the increasing emphasis on long-term plant life extension and modernization, as governments, regulators, and utility operators seek to maximize the value of existing nuclear assets while ensuring their safe and efficient operation. Nuclear power plants are capital-intensive assets with lifespans originally designed for 30 to 40 years; however, with rising global demand for low-carbon baseload power, coupled with heightened energy security concerns, many countries are actively pursuing strategies to extend the operational life of their nuclear fleets.

This shift is creating a strong demand for advanced steam generator technologies that can withstand longer operating cycles, higher thermal efficiency requirements, and stricter safety standards. Steam generators are critical components in pressurized water reactors, and their integrity directly affects plant reliability, safety, and performance, making their replacement or modernization central to life extension programs.

Market players are responding with new designs that incorporate improved materials resistant to corrosion, fatigue, and stress cracking, while also delivering enhanced heat transfer performance to improve overall plant efficiency. Additionally, modernization efforts are increasingly supported by advanced non-destructive testing methods, predictive maintenance tools, and digital monitoring solutions, enabling operators to optimize asset performance and preemptively address issues before they lead to costly outages. This trend is particularly relevant in regions with aging nuclear fleets, such as North America, Europe, and parts of Asia, where extending plant operations by an additional 20 to 30 years is seen as both economically and environmentally advantageous.

The growing recognition of nuclear energy as a sustainable and stable power source in global energy transition strategies further underscores the importance of long-term plant operations, reinforcing demand for modernized nuclear steam generator solutions. Over the next decade, this focus on plant life extension and modernization will remain a dominant market driver, shaping technological advancements, investment priorities, and procurement strategies in the nuclear steam generator sector.

Integration of Advanced Materials and Manufacturing Innovations

Another key trend transforming the nuclear steam generator market is the integration of advanced materials and manufacturing innovations that are fundamentally redefining product performance, reliability, and lifecycle economics. Traditional steam generator designs faced challenges such as tube corrosion, cracking, and wear under prolonged exposure to high-pressure, high-temperature environments, which often resulted in costly replacements and plant downtime. To address these challenges, manufacturers are now leveraging high-performance alloys, composite materials, and surface treatment technologies to significantly improve durability and operational resilience.

For instance, nickel-based alloys and corrosion-resistant composites are increasingly being adopted for tubing and structural components, offering superior resistance to stress corrosion cracking and thermal fatigue. Additionally, advances in precision welding, additive manufacturing, and automated fabrication processes are enabling higher quality control, reduced production timelines, and cost efficiencies in steam generator manufacturing.

The adoption of digital twin technologies is also enhancing design optimization, allowing engineers to simulate operating conditions and predict material behavior over decades of use, leading to better-informed design choices and extended component longevity. Moreover, the focus on modular manufacturing approaches is gaining momentum, enabling easier transportation, installation, and replacement of steam generators, which is particularly beneficial for plants in remote locations or constrained by limited access.

This convergence of advanced materials science and manufacturing innovation is not only extending component lifespan but also significantly reducing lifecycle costs for utilities, making nuclear power more competitive against alternative energy sources. As the global energy sector increasingly emphasizes sustainability and cost-effectiveness, nuclear steam generator manufacturers that successfully integrate these innovations will gain a distinct competitive edge, helping utilities manage operational risks while supporting the broader decarbonization agenda. This trend is expected to accelerate as research collaborations, industrial investments, and regulatory endorsements align to foster a new era of highly reliable, efficient, and cost-optimized nuclear steam generators.

Growing Adoption of Small Modular Reactors (SMRs) and Its Impact on Steam Generator Design

A rapidly emerging trend in the nuclear steam generator market is the growing adoption of small modular reactors (SMRs), which is reshaping steam generator design requirements and driving demand for compact, flexible, and scalable solutions. Unlike conventional large-scale reactors, SMRs are designed to be smaller, modular, and factory-assembled, offering a more flexible deployment model that lowers upfront capital costs, reduces construction risks, and enables incremental capacity additions tailored to regional energy needs. This paradigm shift is creating a new market niche for steam generators that must meet different design specifications, including compact size, enhanced efficiency, and simplified integration with modular reactor systems.

Steam generators for SMRs are expected to offer not only robust thermal performance and safety but also modularity to align with the plug-and-play concept of SMR deployment. Manufacturers are therefore investing heavily in research and development to create innovative steam generator models optimized for SMRs, incorporating advanced heat exchanger designs, integrated safety features, and improved maintenance accessibility. Furthermore, SMRs are gaining global momentum due to their potential role in supporting energy transition strategies, particularly in regions where large nuclear plants are impractical due to geographic, financial, or political constraints. Countries in North America, Europe, and Asia are actively funding SMR projects, which in turn is spurring demand for compatible steam generator technologies.

The scalability of SMRs also opens up opportunities for their use in industrial applications, remote energy supply, and even hybrid systems integrating renewable energy, thereby expanding the role of steam generators beyond traditional power generation. This growing adoption of SMRs is redefining the future trajectory of the nuclear steam generator market, as it requires manufacturers to align product development strategies with the evolving reactor landscape. Over time, the rise of SMRs will not only diversify demand patterns but also foster innovation in steam generator technologies, ensuring that the market remains dynamic, resilient, and closely aligned with the global shift toward sustainable and flexible energy solutions.

Segmental Insights

Reactor Type Insights

The Pressurized Water Reactors (PWRs) segment held the largest Market share in 2024. The growth of the nuclear steam generator market in the Pressurized Water Reactors (PWRs) segment is primarily driven by the increasing global reliance on nuclear power as a reliable, low-carbon energy source to meet rising electricity demand, coupled with the growing emphasis on reducing greenhouse gas emissions and transitioning toward cleaner energy systems. PWRs, being the most widely deployed type of nuclear reactor worldwide, account for a significant portion of operating nuclear capacity, making them the cornerstone of the steam generator market. Their dominance is attributed to their proven safety, operational efficiency, and adaptability to evolving energy needs, which ensures consistent demand for steam generators as critical components in power generation systems.

Steam generators in PWRs play a vital role in transferring heat from the reactor coolant to the secondary loop, producing steam to drive turbines and generate electricity, thus forming the heart of power plant operations. The increasing pace of nuclear plant modernization and life-extension projects further accelerates demand, as aging reactors require replacement or upgraded steam generators to maintain performance and safety standards. With many existing PWRs approaching or surpassing mid-life, operators are investing in advanced steam generator designs with improved materials, corrosion resistance, and longer operational lifespans to enhance plant reliability and efficiency.

Additionally, the expansion of nuclear power in emerging economies, particularly in Asia and the Middle East, where large-scale investments are being made in new PWR installations, is further propelling market growth. Governments and energy companies in these regions view PWR-based nuclear power as a strategic avenue to secure energy independence while meeting environmental commitments, creating sustained demand for high-quality steam generators.

Moreover, ongoing advancements in nuclear engineering, such as compact modular PWR designs, are broadening the scope of steam generator applications, opening new market opportunities. The market driver is also reinforced by the increasing focus on energy security, as nations seek to diversify their energy portfolios and reduce dependence on fossil fuels, thereby encouraging long-term nuclear infrastructure investments.

Furthermore, the rising need for uninterrupted baseload electricity, which intermittent renewable sources cannot fully provide, strengthens the role of PWR-based nuclear power plants in global energy grids, consequently supporting steady growth in the demand for steam generators. As utilities and governments continue to prioritize both environmental sustainability and energy stability, the PWR segment will remain at the forefront of the nuclear steam generator market, driven by ongoing reactor installations, refurbishment programs, technological innovations, and expanding adoption across both mature and developing nuclear markets.

Material Insights

The Alloy 800H segment held the largest Market share in 2024. The Alloy 800H segment serves as a significant driver in the global nuclear steam generator market, primarily due to its superior performance characteristics and its critical role in ensuring the long-term reliability and safety of nuclear power plants. Nuclear steam generators operate under extreme thermal and mechanical stresses, where materials are constantly exposed to high temperatures, aggressive water chemistries, and radiation-induced degradation; in such conditions, Alloy 800H has emerged as the preferred choice due to its excellent high-temperature strength, resistance to oxidation, and superior corrosion resistance compared to conventional alloys.

Its metallurgical stability under prolonged service conditions allows it to effectively mitigate risks of stress corrosion cracking and thermal fatigue, two of the most pressing challenges in nuclear steam generator operations. The adoption of Alloy 800H is further fueled by the growing demand for extended operational lifespans of nuclear reactors, where utilities and operators seek to enhance plant performance and defer the need for costly replacements by relying on advanced materials that ensure structural integrity over decades of service. Additionally, as the global energy sector intensifies its focus on low-carbon electricity generation, nuclear power is gaining renewed importance, driving investment in next-generation reactors and retrofitting projects that prioritize advanced materials for safety and efficiency.

The Alloy 800H segment is benefiting from these investments, as regulatory bodies and plant operators increasingly mandate the use of high-performance alloys to comply with stringent safety standards while minimizing downtime and maintenance costs. The rising deployment of nuclear power plants in emerging economies, coupled with modernization programs in established nuclear markets, further reinforces the market potential of Alloy 800H, as it supports scalability in both new build and replacement applications. Moreover, the trend toward higher capacity reactors and advanced reactor designs requires materials with superior performance envelopes, making Alloy 800H indispensable for delivering durability, efficiency, and reduced lifecycle costs.

Its unique ability to maintain mechanical strength and metallurgical integrity under varying thermal cycles directly translates into higher operational efficiency and improved safety margins, which are central to the adoption of nuclear power as a sustainable energy solution. As governments and utilities worldwide emphasize clean energy transitions and resilient power infrastructure, the use of Alloy 800H in nuclear steam generators stands out as a strategic enabler, ensuring that nuclear plants not only meet global energy demands but also comply with the highest standards of safety, reliability, and economic viability, thereby cementing its role as a primary growth driver within the nuclear steam generator market.

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Regional Insights

Largest Region

The North America region held the largest market share in 2024. The North America nuclear steam generator market is primarily driven by the region’s strong focus on energy security, decarbonization, and modernization of nuclear power infrastructure, making nuclear energy a critical component of the long-term energy mix. With rising demand for reliable, low-carbon electricity, nuclear power plants in the United States and Canada are increasingly investing in upgrading and replacing steam generators to extend plant lifespans, improve operational efficiency, and meet stringent regulatory requirements.

The market is further supported by government policies and industry initiatives promoting clean energy transition, where nuclear is viewed as a stable complement to renewable sources such as solar and wind, ensuring grid reliability and reducing dependence on fossil fuels.

In addition, the aging nuclear fleet in North America presents significant opportunities for steam generator replacements and retrofits, as many plants are undergoing life-extension programs to operate safely beyond their original design limits. The advancement of next-generation nuclear reactors, including small modular reactors (SMRs), is also creating demand for innovative, compact, and efficient steam generator technologies tailored for flexible, scalable deployment. Furthermore, increasing research and development investments are fostering innovations in materials and manufacturing processes, enabling steam generators to withstand higher pressures, temperatures, and radiation levels, ultimately improving safety and reducing maintenance costs.

Rising concerns over carbon emissions and energy independence are also influencing utilities to prioritize nuclear energy expansion, driving collaborations between utilities, research institutions, and technology providers to accelerate adoption of advanced steam generator systems. As North America seeks to balance growing electricity demand with climate goals, the nuclear steam generator market is positioned to benefit from modernization projects, government-backed investments, and cross-border collaborations, reinforcing nuclear energy’s role as a cornerstone of sustainable, low-emission power generation in the region.

Emerging region:

South America is the emerging region in Nuclear Steam Generator Market.  The South America nuclear steam generator market is emerging as a promising region, driven by the growing recognition of nuclear power as a strategic solution for energy diversification, climate resilience, and long-term economic development. Countries such as Brazil and Argentina, which already operate nuclear power plants, are actively exploring reactor life-extension programs, capacity expansion, and modernization initiatives, creating steady demand for nuclear steam generators as critical components in maintaining safety, reliability, and operational efficiency.

Rapidly increasing electricity demand, fueled by urbanization, industrialization, and rising living standards across the region, is pushing governments to consider stable baseload options beyond hydropower and fossil fuels, especially given the volatility of rainfall patterns that directly affect hydroelectric output.

Nuclear energy is being positioned as a reliable complement to renewables, and investment in new reactors or refurbishment of existing ones requires robust, durable steam generator technologies capable of withstanding high-pressure, high-temperature environments. Additionally, the region is witnessing growing collaboration between domestic utilities, international nuclear organizations, and technology providers to enhance expertise, transfer knowledge, and integrate advanced designs tailored to regional conditions.

The potential adoption of small modular reactors (SMRs) is further driving interest in innovative steam generator solutions, as these compact systems are well-suited to remote locations, industrial hubs, and markets with evolving energy demands. Rising environmental concerns, coupled with commitments to decarbonization, are encouraging governments to diversify energy portfolios, and nuclear energy is increasingly gaining attention as a secure, low-emission pathway to balance economic growth with sustainability.

 Furthermore, public and private sector investments in research, workforce training, and infrastructure development are gradually strengthening regional capabilities, laying the foundation for long-term nuclear power growth. As South America continues to pursue energy independence and stability, the nuclear steam generator market is positioned to benefit from both ongoing modernization projects in existing plants and new opportunities arising from the shift toward cleaner, more resilient energy systems.

The growing convergence of policy support, energy demand, and technology transfer underscores South America’s emergence as a significant future market for nuclear steam generators, reflecting the region’s commitment to building a balanced energy mix that supports sustainable industrial and economic development.

Recent Developments

• In April 2025, Indian engineering conglomerate Larsen & Toubro (L&T) successfully dispatched the fourth of eight advanced steam generators for Units 5 and 6 of the Kaiga Nuclear Power Plant in Karnataka. This milestone underscores L&T’s strong capabilities in delivering critical nuclear components and reinforces its role in supporting India’s expanding nuclear energy program. The timely delivery highlights the company’s commitment to advancing domestic nuclear infrastructure, ensuring reliable energy generation to meet the nation’s growing power demands.
• In January 2025, Mitsubishi Heavy Industries (MHI) successfully completed the manufacturing of three replacement steam generators for Électricité de France (EDF), marking a significant milestone in supporting the modernization of EDF’s nuclear power plants. The newly manufactured units are designed to enhance operational efficiency, safety, and reliability, reinforcing MHI’s position as a trusted global supplier of advanced nuclear equipment. This achievement underscores the company’s commitment to advancing sustainable energy infrastructure and strengthening long-term partnerships within the international nuclear power sector.

Key Market Players

• Mitsubishi Heavy Industries Ltd
• Westinghouse Electric Company LLC
• BWX Technologies Inc.
• Framatome
• Hitachi-GE Nuclear Energy Ltd
• Babcock & Wilcox Enterprises Inc.
• China National Nuclear Corporation (CNNC)
• Rosatom Corp.
• Bharat Heavy Electricals Limited (BHEL)
• Doosan Corp.

Report Scope:

In this report, the Global Nuclear Steam Generator Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

• Nuclear Steam Generator Market, By Reactor Type:

o   Pressurized Water Reactors (PWRs)

o   Boiling Water Reactors (BWRs)

o   CANDU Reactors

o   Advanced Gas-cooled Reactors (AGRs)

o   Sodium Fast Reactors (SFRs)

• Nuclear Steam Generator Market, By Material:

o   Alloy 800H

o   Alloy 690TT

o   Stainless Steel 316L

o   Titanium Alloys

o   Nickel Alloys  

• Nuclear Steam Generator Market, By Design Type:

o   Once-Through Steam Generators (OTSGs)

o   U-Tube Steam Generators (UTSGs)

o   Helical-Coil Steam Generators (HCSGs)

o   Compact Steam Generators (CSGs)

• Nuclear Steam Generator Market, By Region:

o   North America

§  United States

§  Canada

§  Mexico

o   Europe

§  France

§  United Kingdom

§  Italy

§  Germany

§  Spain

o   Asia-Pacific

§  China

§  India

§  Japan

§  Australia

§  South Korea

o   South America

§  Brazil

§  Argentina

§  Colombia

o   Middle East & Africa

§  South Africa

§  Saudi Arabia

§  UAE

§  Kuwait

§  Turkey

Competitive Landscape

Company Profiles: Detailed analysis of the major companies presents in the Global Nuclear Steam Generator Market.

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Company Information

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