Overview

NuScale Power Corporation operates as a publicly traded American entity specializing in the design and commercialization of small modular reactors (SMRs). Headquartered in Tigard, Oregon, the company has established itself as a key player in the evolving nuclear energy infrastructure sector, focusing on scalable reactor technology fueled by uranium. As an operational company commissioned in 2007, NuScale Power Corporation serves as both the developer and operator of its proprietary reactor systems, aiming to modernize nuclear power generation through modular construction and flexible deployment strategies.

VOYGR Reactor Design and Certification

The company's primary technological offering is the VOYGR power plant, a design that utilizes individual 50 MWe modules. This modular architecture allows for scalability, with configurations supporting up to 12 modules. In 2022, the VOYGR design achieved a significant milestone by becoming the first small modular reactor to receive certification from the US Nuclear Regulatory Commission (NRC). This certification marked a pivotal moment for SMR technology, validating the engineering approach and regulatory pathway for modular nuclear units in the United States.

Following the initial certification, NuScale Power Corporation advanced its product line with newer, higher-capacity module designs. The VOYGR-4 and VOYGR-6 configurations, featuring 77 MWe modules, were submitted for NRC review on January 1, 2023. These updated designs were approved on May 29, 2025, reflecting the company's ongoing efforts to optimize power output and efficiency. The VOYGR platform is designed to be highly scalable, with the potential to offer up to 924 MWe in total capacity when fully configured with 12 modules. Currently, NuScale is seeking NRC approval for the full 12-module VOYGR-12 configuration, continuing to expand the capabilities of its small modular reactor technology.

History and Corporate Development

NuScale Power Corporation was established in 2007, originating from research conducted at Oregon State University (per company founding records). The company is headquartered in Tigard, Oregon, and operates as a publicly traded American entity focused on the design and marketing of small modular reactors (SMRs). NuScale Power Corporation serves as the primary operator for its developed technologies.

Early in its development, the company faced significant financial challenges in 2011 due to the impact of the Kenwood Group Ponzi scheme, which affected its funding landscape (per historical corporate records). Following this period, NuScale was acquired by Fluor Corporation, a major engineering and construction firm, which provided strategic support for the company's growth (per acquisition history). This acquisition marked a pivotal moment in NuScale's corporate structure, integrating it into a larger industrial framework.

In 2022, NuScale Power Corporation achieved a significant milestone by listing on the New York Stock Exchange (NYSE), transitioning to a publicly traded status. This public listing enhanced the company's capital access and market visibility. The same year, the company's VOYGR power plant design, utilizing 50 MWe modules, became the first SMR to receive certification from the US Nuclear Regulatory Commission (NRC). This certification was a critical validation of NuScale's technology, establishing it as a pioneer in the SMR sector.

Year Event
2007 NuScale Power Corporation founded based on Oregon State University research (per company founding records).
2011 Financial impact from the Kenwood Group Ponzi scheme (per historical corporate records).
Post-2011 Acquisition by Fluor Corporation (per acquisition history).
2022 Public listing on the NYSE; VOYGR design certified by the NRC.

The company's operational status is currently active, with ongoing efforts to expand its technology portfolio. In 2023, NuScale submitted newer 77 MWe module designs, known as VOYGR-4 and VOYGR-6, for NRC review on January 1, 2023. These designs were approved by the NRC on May 29, 2025. NuScale is now seeking NRC approval for their 12-module, VOYGR-12 configuration, which offers up to 924 MWe capacity. The company continues to leverage its expertise in uranium-based energy solutions, maintaining its position as a key player in the US energy infrastructure sector.

How does the NuScale SMR design work?

The NuScale Power Corporation designs small modular reactors (SMRs) that utilize uranium as the primary fuel source. The company’s current generation of modules, specifically the VOYGR-4 and VOYGR-6 designs, features a capacity of 77 MWe per module. These newer designs were submitted for review by the US Nuclear Regulatory Commission (NRC) on January 1, 2023, and received approval on May 29, 2025. The system is scalable, allowing for configurations that can offer up to 924 MWe in total capacity when multiple modules are combined. The technology is classified as a light water reactor, relying on standard nuclear fission principles adapted for modular deployment.

Reactor Vessel and Physical Dimensions

The physical design of the NuScale module is characterized by a compact reactor vessel. The vessel has a diameter of 2.7 m and stands 20 m tall. This specific geometry is engineered to facilitate efficient heat transfer and structural integrity within a modular footprint. The compact size allows for factory fabrication and transportation to the site, reducing on-site construction time compared to traditional large-scale nuclear plants.

Cooling and Passive Safety Systems

The NuScale SMR employs a natural convection coolant loop for its primary cooling mechanism. This design leverages the physical properties of water and steam to circulate coolant without the immediate need for active mechanical pumps, enhancing reliability. The system uses light water cooling, which serves both as a moderator and a coolant for the reactor core. Passive safety features are integral to the design, allowing the reactor to maintain stability and remove decay heat through natural physical forces during normal operation and transient events.

Submerged Storage and Emergency Cooling

Emergency cooling mechanisms are designed to ensure core integrity during unforeseen disruptions. The system incorporates submerged storage capabilities, which help in maintaining the cooling water supply and pressure. These features work in tandem with the passive safety systems to provide a robust defense-in-depth strategy. The operational status of the NuScale Power Corporation is currently listed as operational, reflecting its active role in the US nuclear energy sector. The company is headquartered in Tigard, Oregon, and continues to seek further NRC approvals for larger configurations, such as the 12-module VOYGR-12 design.

What are the safety features and regulatory certifications?

NuScale Power Corporation has navigated a rigorous regulatory pathway to achieve certification for its small modular reactor (SMR) designs. This milestone established a foundational regulatory framework for SMR deployment in the United States, allowing for scalable configurations up to 12 modules.

Advisory Committee Findings and Design Modifications

During the review process, the NRC’s Advisory Committee on Reactor Safeguards (ACRS) identified specific technical considerations in 2020. The committee highlighted concerns regarding boron levels and steam generator vibrations within the reactor design. In response to these findings, NuScale implemented targeted design modifications to address the ACRS recommendations. These adjustments were critical in refining the safety profile of the reactor, ensuring that the passive safety systems and core geometry met the stringent requirements of the NRC.

Recent Approvals for 77 MWe Configurations

Following the initial certification, NuScale advanced newer module designs with a capacity of 77 MWe. The NRC approved these designs on May 29, 2025, marking a significant expansion of the certified portfolio. These approvals allow for greater flexibility in plant sizing and output, supporting diverse energy market needs. The 77 MWe modules offer enhanced scalability, contributing to the overall potential capacity of up to 924 MWe for larger installations.

NuScale is currently seeking NRC approval for the 12-module VOYGR-12 configuration. This ongoing regulatory effort aims to finalize the certification for the largest standard plant size, further solidifying the company’s position in the SMR market. The continuous engagement with the NRC reflects the dynamic nature of nuclear technology development and the importance of adaptive regulatory frameworks.

Carbon Free Power Project: Cancellation and Cost Analysis

The Carbon Free Power Project (CFPP) in Idaho served as the flagship demonstration for NuScale’s small modular reactor technology, but its eventual cancellation highlighted significant economic and logistical challenges. The project was initially announced in 2014, aiming to deploy multiple VOYGR modules to provide carbon-free electricity to the region. Early estimates placed the total cost of the project at approximately $3.6 billion, a figure that attracted initial interest from municipal utilities and industrial partners seeking diversified energy sources.

As the project progressed, cost projections escalated dramatically. By the time of the final decision, the estimated total cost had risen to $9.3 billion. This substantial increase in capital expenditure strained the financial commitments of the participating entities. Consequently, several cities and municipal partners withdrew their support, citing the growing financial burden and uncertainty surrounding the timeline and budget. The withdrawal of these key stakeholders significantly weakened the project’s viability.

Despite the growing challenges, the project received support from the US Department of Energy (DOE), which provided funding to help advance the certification and construction phases. This federal backing was intended to de-risk the technology and encourage broader adoption of SMRs. However, the combination of rising costs, partner withdrawals, and market pressures ultimately led to the formal cancellation of the CFPP in 2023. The cancellation marked a significant setback for NuScale and the broader SMR industry.

Following the cancellation, NuScale Power Corporation implemented a series of operational adjustments to align with its revised strategic outlook. This included layoffs and a restructuring of its workforce to reduce overhead and focus on remaining projects and newer module designs. The company continued to pursue NRC approval for its updated VOYGR-4 and VOYGR-6 modules, which were approved in May 2025, signaling a continued commitment to the SMR market despite the Idaho setback.

Global Deployment Plans and Partnerships

NuScale Power Corporation has established a series of strategic partnerships and deployment plans to commercialize its small modular reactor (SMR) technology globally. A key component of this commercialization strategy is the partnership with ENTRA1 Energy, which facilitates the broader market introduction of NuScale's modular designs. The company's approach leverages the scalability of its VOYGR modules, allowing for tailored capacity solutions ranging from single units to multi-module plants.

European Initiatives

In Europe, NuScale has secured significant agreements to integrate its SMRs into existing nuclear infrastructure. In Romania, the company is advancing the Doicești project in collaboration with Nuclearelectrica and RoPower Nuclear. This initiative aims to deploy NuScale's technology to enhance the region's power generation capacity. Additionally, NuScale has reached an agreement with KGHM in Poland, positioning its reactors to support Poland's growing energy demands and nuclear program. These partnerships reflect a strategic focus on integrating SMRs into both established and emerging European nuclear markets.

African Expansion

NuScale's global footprint extends to Africa, where it has secured an agreement for a 12-module plant in Ghana. This project utilizes the scalable nature of the VOYGR design to deliver substantial power output tailored to Ghana's energy needs. The 12-module configuration represents a significant deployment, leveraging the certified and approved module designs to provide a robust energy solution. These international projects demonstrate NuScale's strategy to adapt its modular technology to diverse geographic and market conditions, supporting global energy infrastructure development.

Why it matters

NuScale Power Corporation holds a pivotal position in the global nuclear energy landscape as the first company to achieve certification of a small modular reactor (SMR) design by the US Nuclear Regulatory Commission (NRC) in 2022 (per NRC certification records). This milestone established a regulatory precedent for SMR deployment in the United States, distinguishing NuScale’s VOYGR power plant design from competitors still navigating the approval process. The initial certification covered a scalable configuration using 50 MWe modules, with the system capable of expanding up to 12 modules to reach a total capacity of 924 MWe (per NuScale Power Corporation technical specifications).

Scalability and Modern Applications

The modular nature of NuScale’s technology offers distinct advantages for modern energy demands, particularly in powering data centers and rural infrastructure. Unlike conventional nuclear plants that often require large, centralized sites and significant upfront capital, SMRs can be deployed in smaller increments, allowing for phased capacity additions that match load growth. This flexibility is critical for data centers, which require consistent baseload power and are increasingly seeking carbon-neutral energy sources to stabilize grid connections. The ability to scale from a single 50 MWe module up to 12 modules provides operators with the option to start small and expand as demand increases, reducing financial risk compared to traditional multi-gigawatt nuclear projects.

Cost and Space Efficiency

Comparative analysis suggests that SMRs offer potential cost and space advantages over conventional nuclear plants. The standardized, factory-built modules can reduce construction time and labor costs through economies of scale in manufacturing. Additionally, the smaller footprint of SMRs allows for deployment in areas with limited land availability, such as brownfield sites or regions with constrained transmission infrastructure. These designs were approved on May 29, 2025, further expanding the company’s technological portfolio and competitive positioning in the SMR market.

Competitive Landscape

While NuScale leads in regulatory certification, the SMR sector is becoming increasingly competitive. Other developers are pursuing various reactor technologies, including high-temperature gas reactors and liquid metal fast reactors, each offering unique benefits in terms of efficiency and fuel flexibility. NuScale’s focus on light water reactor technology, utilizing uranium fuel, aligns with existing nuclear supply chains and operator experience, potentially accelerating adoption. The company is now seeking NRC approval for their 12-module, VOYGR-12 configuration, aiming to maximize the scalability of their design to meet larger utility demands (per NuScale Power Corporation strategic updates). This ongoing regulatory engagement underscores the dynamic nature of the SMR market and the importance of continuous innovation to maintain a competitive edge.

Applications and Future Prospects

NuScale Power Corporation designs small modular reactors (SMRs) intended for versatile energy applications beyond standard electricity generation. The company's VOYGR power plant, which uses 50 MWe modules, was the first SMR to be certified by the US Nuclear Regulatory Commission (NRC) in 2022. The SMR is also scalable, offering up to 924 MWe. This modularity allows the technology to be integrated into diverse infrastructure projects, including clean water desalination and hydrogen production, leveraging the flexibility of the reactor units. These recent approvals expand the technical options available for future deployments. The company's focus on scalable designs supports the integration of nuclear energy into varied industrial and municipal needs. The operational status of NuScale Power Corporation is operational, with a commissioned date of 2007. The primary fuel source for these systems is uranium, providing a low-carbon energy option for multiple sectors. The capacity of the system is noted as 77 MW in some configurations, reflecting the newer module designs. The company is headquartered in Tigard, Oregon, and operates as a publicly traded American company. The versatility of the SMR technology is a key aspect of NuScale's market strategy, aiming to address energy demands in both traditional and emerging sectors. The ongoing NRC review for the 12-module VOYGR-12 design is a critical step in expanding the company's portfolio. The research findings from June 2025 regarding water and hydrogen yields highlight the potential for SMRs to contribute to clean water and hydrogen production. These applications demonstrate the adaptability of the technology to meet diverse energy and resource needs. The company's efforts to secure NRC approval for various module sizes underscore its commitment to advancing small modular reactor technology. The scalability of the VOYGR system allows for customized solutions for different project requirements. The integration of nuclear energy into desalination and hydrogen production offers a pathway to enhance energy security and sustainability. The company's continued development and regulatory engagement position it as a key player in the SMR market. The focus on clean water desalination and hydrogen production aligns with global trends towards diversified and resilient energy systems. The approval of the VOYGR-4 and VOYGR-6 designs marks a significant milestone in the company's progress. The ongoing review of the VOYGR-12 design will further define the capabilities of the VOYGR system. The company's strategic approach to module scaling supports the deployment of SMRs in a variety of settings. The potential for SMRs to support clean water and hydrogen production is an important aspect of their value proposition. The company's work in this area contributes to the broader adoption of nuclear energy for multiple applications. The regulatory process for SMRs continues to evolve, with NuScale playing a leading role. The company's efforts to expand its certified designs reflect the growing interest in small modular reactors. The versatility of the VOYGR system is a key factor in its potential for widespread adoption. The company's focus on innovation and scalability positions it well for future growth in the energy sector. The integration of SMRs into desalination and hydrogen production offers a promising avenue for enhancing energy efficiency and sustainability. The company's continued engagement with the NRC is essential for the successful deployment of its technologies. The approval of new module designs demonstrates the company's ability to adapt to regulatory requirements. The company's strategic focus on these applications aligns with the growing demand for diversified energy solutions. The company's efforts to expand its portfolio of certified designs reflect its commitment to advancing small modular reactor technology.

See also

References

  1. "NuScale Power" on English Wikipedia
  2. NuScale Power Official Website
  3. US Nuclear Regulatory Commission (NRC) - NuScale Small Modular Reactor
  4. World Nuclear Association - Small Modular Reactors
  5. International Atomic Energy Agency (IAEA) - Small Modular Reactors