In brief
South Korea announced that it will roll out a preliminary review system for small modular reactors (SMRs) later this month, a step designed to accelerate design verification and licensing. The Nuclear Safety and Security Commission, led by Choi Won‑ho, says the system has already been adopted in countries like the United States and Canada and has drawn interest from roughly ten developers, both domestic and foreign. This initiative is part of a broader 2030 overhaul of nuclear safety standards and a strategy to boost SMR deployment and export potential.
South Korea is poised to launch a new regulatory tool for small modular reactors (SMRs) on November 30, a move aimed at speeding up safety checks and licensing for the next generation of nuclear power plants. The system, referred to as a preliminary review framework, will allow developers to submit designs for early safety verification before the formal license process, a practice already used in the United States and Canada.
Background: Why Small Modular Reactors Matter
SMRs are a class of nuclear reactors that are smaller in size, typically under 300 megawatts, and are designed to be built in factories and assembled on site. Their modular nature promises lower upfront costs, flexible deployment, and a reduced risk profile compared to traditional large reactors. In a world where data centers and other power-intensive facilities are expanding rapidly, SMRs offer a carbon‑free source of steady electricity, a need that has become ever more pressing in the era of artificial intelligence.
The Preliminary Review System Explained
The Nuclear Safety and Security Commission (NSSC), overseen by chief Choi Won‑ho, announced that the new review system will begin operating in November. Unlike the full licensing process, which involves extensive public consultation and multi‑phase approvals, the preliminary review allows a focused evaluation of design safety, technical specifications, and regulatory compliance. Once the design passes this early check, developers can proceed to the formal licensing stages with clearer expectations and reduced uncertainty.
Choi explained that the framework “can ease uncertainties surrounding regulatory reviews for companies, while also allowing institutions to understand new technologies from a regulatory perspective earlier on.”
“The system can ease uncertainties surrounding regulatory reviews for companies, while also allowing institutions to understand new technologies from a regulatory perspective earlier on,” said Choi Won‑ho, head of the NSSC.
Industry Interest and Early Submissions
In the weeks leading up to the launch, roughly ten SMR developers—both domestic and overseas—have indicated their intent to apply. Among the Indian and Western firms are BEES Inc., a South Korean start‑up that is building a 50‑megawatt prototype; TerraPower, a U.S. company known for its innovative pebble‑bed design; and Saltfoss Energy from Denmark, which is pursuing a helium‑cooled, small‑modular concept.
Some of these companies have already announced that they plan to submit their designs immediately after the system becomes operational, signaling the potential for rapid regulatory engagement. The early interest underscores a growing confidence in Korea’s regulatory environment and its capacity to support advanced nuclear technology.
Alignment With International Standards
South Korea’s plan is not an isolated effort. Choi noted that the NSSC is actively involved in international SMR regulatory projects, including those led by the International Atomic Energy Agency (IAEA). The commission is also engaged in dialogues with the United States and Canada, nations that have pioneered SMR approval pathways.
“It’s important to ensure international consistency in our SMR regulations,” said Choi.
By converging its domestic standards with those used abroad, South Korea aims to position itself as a competitive player in the global SMR market, with the potential to export licensing models and technology to other countries seeking low‑emission power solutions. The 2030 roadmap laid out in February by the NSSC will further revise existing safety guidelines to encompass a broader range of reactor designs and applications.
In this context, the new review system represents a tangible step forward in realizing a modern, flexible nuclear energy strategy that can adapt to the rapidly evolving demands of data‑intensive industries while maintaining rigorous safety oversight.
