Samsung Heavy Industries has received approval in principle (AIP) from ABS for its floating offshore nuclear power platform, marking a significant step toward commercialising nuclear energy for offshore and maritime applications.
The South Korean shipbuilder’s concept, known as the Floating Small Modular Reactor (FSMR), is designed to host multiple types of small modular reactors (SMRs), offering flexibility as nuclear technologies continue to evolve.
Flexible Platform for Offshore Nuclear Power
According to Samsung, the key strength of the FSMR design lies in its ability to accommodate different SMR technologies with minimal structural changes. ABS has approved the platform in a configuration designed to carry two SMART 100 SMRs.
The SMART 100 is an integrated small modular reactor developed by the Korea Atomic Energy Research Institute (KAERI). It received Standard Design Approval from Korea’s Nuclear Safety & Security Commission in September 2024, clearing a major regulatory hurdle for deployment.
Division of Technical Responsibilities
As part of the certification process, Samsung was responsible for integrating the SMRs with the floating structure, developing the overall nuclear power generation layout, and designing a multi-barrier reactor containment system suitable for offshore use.
KAERI, meanwhile, adapted the originally land-based SMART SMR technology for marine and offshore operating conditions, ensuring compatibility with floating installations.
Modular Safety and Faster Deployment
Samsung said it has enhanced safety by modularising the reactor and safety systems within a single containment vessel, a core feature of the FSMR design. This approach allows reactors to be installed and fully tested onshore before being transported offshore, helping to shorten construction schedules and reduce offshore installation risks.
The shipyard added that the reactor and power generation systems are grouped by function, enabling different SMR types to be deployed by modifying only the reactor-designated compartment, rather than redesigning the entire vessel.
Strategic Step for Offshore Nuclear Energy
Young-kyu Ahn, Head of Samsung Heavy Industries’ Offshore Business Division, said the ABS approval “marks an important milestone in opening up the offshore nuclear power market.”
Jin-young Cho, Head of the Advanced Reactor Research Institute at KAERI, described the AIP as proof of “the innovative strength of Korea’s nuclear technology,” adding that KAERI will accelerate development efforts to position South Korea as a global leader in offshore nuclear power.
The approval comes amid renewed global interest in nuclear-powered vessels and offshore energy systems, following recent disclosures by marine contractors exploring nuclear propulsion and power solutions for large offshore assets.