The future of shipping is nuclear! HD Hyundai’s SMR-powered ship just got approved

HD Korea Shipbuilding & Offshore Engineering (HD KSOE), a subsidiary of HD Hyundai, has taken a significant leap forward in maritime technology with the unveiling of its SMR-powered containership. The company introduced this nuclear-powered vessel at the New Nuclear for Maritime Summit in Houston, Texas, marking a major milestone in its efforts to drive carbon-free shipping.

The 15,000 TEU-class SMR-powered containership integrates Small Modular Reactor (SMR) technology, a transformative innovation that eliminates the need for traditional fuel storage and engine exhaust systems. By optimizing space for cargo and enhancing fuel efficiency, this nuclear-powered vessel sets a new standard for economic and environmental sustainability in global shipping.

Adding to its credibility, HD KSOE has received Approval in Principle (AIP) from the American Bureau of Shipping (ABS), validating the feasibility and safety of its design. With a long-term strategy to develop a marine nuclear technology business model by 2030, HD KSOE is at the forefront of an industry-wide transition to zero-carbon shipping.

Why Is SMR Technology a Game-Changer for Shipping?

The shipping industry faces mounting pressure to reduce its carbon footprint, with regulators and industry leaders exploring alternative fuel solutions. SMR-powered containerships offer a compelling solution, as they eliminate greenhouse gas emissions while maintaining high operational efficiency.

Unlike conventional ships that rely on large fuel tanks and extensive exhaust systems, the nuclear-powered vessel developed by HD KSOE reallocates this space for additional cargo, enhancing economic viability. The company has incorporated a marine radiation shielding system, utilizing a double-tank structure with stainless steel and light water, ensuring compliance with strict international safety standards.

In addition, HD KSOE has integrated a supercritical carbon dioxide-based propulsion system, co-developed with Baker Hughes, to improve thermal efficiency by approximately 5% compared to traditional steam-based systems. This advancement contributes to enhanced energy efficiency, making the SMR-powered containership a viable alternative to fossil fuel-driven vessels.

What Does ABS Approval Mean for the Commercialization of SMR-Powered Containerships?

Securing Approval in Principle (AIP) from ABS is a critical milestone in bringing nuclear-powered vessels closer to commercialization. This certification confirms that HD KSOE’s design meets fundamental safety, feasibility, and regulatory requirements, enabling the next phase of development.

Patrick Ryan, Chief Technology Officer at ABS, underscored the significance of this approval, stating that nuclear-powered vessels could reshape the global shipping industry amid the transition to carbon neutrality. The collaboration between ABS and HD KSOE reflects a concerted effort to expedite the adoption of marine nuclear technology.

As part of its broader strategy, HD KSOE is actively working with major classification societies and regulatory agencies to establish global nuclear shipping standards. This initiative is crucial in addressing regulatory challenges associated with the deployment of SMR-powered containerships on international trade routes.

How Is HD KSOE Advancing Marine Nuclear Technology?

HD KSOE is not only developing the SMR-powered containership but also investing heavily in marine nuclear research. The company has partnered with TerraPower, a leader in Small Modular Reactor technology, to accelerate advancements in next-generation SMRs.

In December 2024, HD KSOE secured an order to manufacture core equipment for TerraPower’s Natrium reactor, a cutting-edge nuclear facility currently under construction in Wyoming, USA. This partnership demonstrates HD KSOE’s growing influence in the nuclear energy sector, positioning the company as a leader in nuclear-powered vessel development.

To further validate its marine nuclear technology, HD KSOE is establishing a marine nuclear demonstration facility at its Future Technology Test Center in Yongin, Gyeonggi Province. This facility will play a key role in testing safety measures and propulsion efficiency before the SMR-powered containership is deployed commercially.

Park Sangmin, Head of HD KSOE’s Green Energy Research Lab, emphasized the company’s long-term vision, stating that the development of land-based SMR reactors is a stepping stone toward a full-scale marine nuclear business model by 2030.

What Are the Implications of Nuclear-Powered Shipping for Global Trade?

The introduction of SMR-powered containerships represents a paradigm shift in the shipping industry, offering a zero-carbon alternative to traditional fuel-powered vessels. As international regulations on emissions become more stringent, nuclear-powered ships could provide a sustainable solution for long-haul maritime transport.

HD KSOE’s breakthrough underscores the growing momentum behind marine nuclear technology, with major industry stakeholders increasingly recognizing its potential. By eliminating reliance on fossil fuels, nuclear-powered vessels can reduce operational costs, enhance cargo efficiency, and contribute to the broader goal of decarbonizing global trade.

While regulatory challenges remain, the successful deployment of SMR-powered containerships could set a new benchmark for the future of shipping. As HD KSOE continues to develop its marine nuclear technology business model, the company is well-positioned to lead the transition toward zero-carbon shipping.