'Nuclear Renaissance' Boosts Modular Manufacturing

The U.S. Department of Energy is actively promoting the deployment of Small Modular Reactors (SMRs), offering up to $900 million in funding to support "first-mover" teams. This initiative aims to have new reactors operational in the early 2030s, with companies like Holtec and a team involving the Tennessee Valley Authority selected for initial funding to advance their Gen III+ SMR projects. The goal is to de-risk these projects and build out domestic supply chains. The Nuclear Regulatory Commission (NRC) is developing a new, optional licensing framework called Part 53, designed to be technology-inclusive and risk-informed for advanced reactors. This move, prompted by the Nuclear Energy Innovation and Modernization Act (NEIMA), aims to streamline the complex and lengthy approval process that was originally created for large, bespoke plants, thereby reducing a key impediment to the new wave of nuclear technology. The final rule is anticipated by the end of 2027. Key players in the modular manufacturing space include GE Hitachi, whose BWRX-300 SMR is already under construction in Canada and is the first SMR project in North America. BWX Technologies is another significant U.S. company, supplying nuclear components and developing its own microreactor, the BANR, which is a factory-fabricated system designed for transport. Startups like Last Energy are also entering the field with micro-modular plants like the 20 MWe PWR-20, designed for factory production and on-site assembly in as little as three months. The shift to modular reactors introduces new supply chain complexities, particularly concerning critical materials. Advanced reactor designs require specialized steel alloys, zirconium, and hafnium, with hafnium being a significant bottleneck due to limited global production. Furthermore, there is a 100% net import reliance on yttrium, primarily sourced from China, which is crucial for certain advanced ceramic components in SMRs. Geopolitical trade tensions, especially between the U.S. and China, pose a significant risk to the nuclear supply chain. China's dominance in processing rare earth elements and other critical minerals creates vulnerabilities. This has intensified efforts to reshore manufacturing and develop more resilient, domestic supply chains for nuclear components and fuel. The demand for SMRs is being driven by the need for reliable, 24/7 carbon-free power, a demand amplified by the growth of energy-intensive data centers and the push for industrial decarbonization. The modular nature of these reactors allows for scalability and flexible deployment, making them suitable for powering remote industrial sites or integrating with other renewable energy sources. To support this manufacturing pivot, significant investment in the workforce is required. The U.S. Department of Energy estimates an additional 375,000 workers would be needed to triple nuclear power capacity by 2050, including 275,000 in construction and manufacturing. A skilled labor shortage is already a primary challenge for manufacturers looking to reshore operations.