From AI Data Centres to Energy Security: The Nuclear Backbone of Intelligence
The global discourse on energy has shifted. It is no longer merely about “green” versus “fossil”; it is about reliability at scale, at a viable cost, and within tight permitting timeframes. As the artificial intelligence revolution accelerates, the world is facing a formidable ‘Power Crunch’. In this high-stakes landscape, South Korea is repositioning itself not just as a technology provider, but as the global ‘Gigafactory’ for Small Modular Reactors (SMRs).
The AI-Driven Power Imperative
According to recent analysis by the International Energy Agency (IEA), the electricity consumption of global data centres, which stood at approximately 460 TWh in 2022, could soar to as much as around 1,050 TWh by 2026 in upper-bound scenarios. This staggering growth is comparable to the annual power consumption of a major industrialised economy, with the incremental demand increasingly driven by generative AI training and cryptocurrency mining.
For tech hyperscalers, the priority has shifted toward securing “always-on,” carbon-neutral power. This is where SMRs—with their smaller footprint and enhanced safety features—emerge as the definitive solution. Across most mainstream forecasts, SMRs remain a high-growth but still relatively small slice of the global power market, underscoring how early we are in the adoption curve. Nevertheless, valuations are expected to reach between USD 7.0 billion and 8.2 billion by 2026, marking it as a high-growth segment.
South Korea’s Strategic Pivot: The SMR Special Act
The Republic of Korea has responded with decisive legislative action. In February 2026, the National Assembly passed the ‘SMR Special Act’, providing a legal framework spanning regulation, public funding, and designated demonstration and industrial zones. This legislation establishes a high-level “SMR Development Promotion Committee” to streamline the path from lab to grid.
Under the 11th Basic Plan for Electricity Supply and Demand (2024–2038), Seoul has formalised its commitment to a nuclear renaissance. The roadmap includes the deployment of a 0.7 GW SMR unit (four 170 MWe modules) domestically by around 2035, with at least two 1.4 GW-class large-scale reactors coming online in the late 2030s. This SMR deployment effectively functions as a first-of-a-kind (FOAK) industrial deployment, showcasing the commercial readiness of the indigenous i-SMR design to the global market.
From Manufacturing Excellence to Global Alliances
What distinguishes South Korea in the SMR race is its end-to-end manufacturing ecosystem. Unlike many Western counterparts that have seen their nuclear supply chains hollowed out after decades of limited new builds, Korea has maintained a continuous build programme for over four decades. From nuclear-grade heavy forgings and reactor vessel manufacturing to fuel handling systems and digital control, Korea offers a “turnkey” solution that is increasingly rare in the current global market.
This prowess has led to significant strategic alliances. Korea Hydro & Nuclear Power (KHNP) is in the process of deepening its partnership with TerraPower—the SMR venture backed by Bill Gates. By moving to secure equity stakes and positions in global demonstration projects, Korea is anchoring itself at the heart of the next-generation nuclear supply chain.
The Investment Outlook: A New Asset Class
For the discerning investor, K-SMR represents more than just an energy play; it is a critical component of the AI infrastructure stack. Yet it remains a policy-sensitive, capital-intensive asset class, where regulatory clarity and project execution track record will separate winners from the rest. As the “Digital-Energy Nexus” tightens, we observe several key trends:
- Direct Equity Exploration: Hyperscalers increasingly exploring long-term PPAs and selective direct equity participation in SMR-backed power projects to ensure energy sovereignty.
- Green Finance Growth: Nuclear energy’s inclusion in several major green taxonomies is reclassifying these projects as high-value ESG assets, at least in selected jurisdictions.
- EPC Leadership: Korean engineering giants are well positioned to lead the international SMR EPC landscape, leveraging their proven track record in the UAE and other large-scale nuclear projects.
Conclusion
South Korea’s ambition is clear: to become the indispensable partner for an AI-powered world. By blending state-of-the-art manufacturing with proactive legislation and global strategic alliances, Seoul is transforming the SMR from a technical curiosity into a scalable industrial reality. In the race to power the future of intelligence, South Korea’s SMR ‘Gigafactory’ strategy shows that energy, manufacturing, and digital infrastructure are now inseparable parts of the same story.