America’s nuclear comeback: tech titans, startups, and regulators race to end Russian uranium reliance

The U.S. nuclear fuel supply chain is critically weakened by its complete loss of domestic uranium enrichment capacity, which once accounted for 80% of global production in the 1980s but now stands at zero, forcing heavy reliance on imports from Russia. This dependence poses a strategic vulnerability, especially as Congress prepares to ban enriched uranium imports from Russia starting in 2028, underscoring the urgent need to rebuild domestic enrichment capabilities to secure energy independence and support the scaling of advanced nuclear reactors.

Efforts to revive the domestic nuclear fuel supply chain are gaining momentum through the leadership of companies like General Matter, founded by Scott Nolan in 2024, which aims to restore U.S. uranium enrichment capacity by the end of the decade. This initiative aligns with a broader push catalyzed by 2023 nuclear executive orders that have streamlined regulatory processes across the DOE, NRC, and DoD, enabling faster licensing timelines—such as the NRC’s commitment to fast-track new fuel cycle licenses within 12 months—thus addressing one of the historical bottlenecks in nuclear infrastructure development.

Rebuilding the nuclear fuel supply chain extends beyond enrichment to revitalizing uranium mining, where significant underutilization persists; for instance, Cameco has approximately 30% of its North American mining capacity shut in, primarily in the U.S. This creates a supply-demand mismatch exacerbated by the long lead times of 15 to 20 years required to bring new mines online, highlighting the urgent need for increased investment and long-term contracts to ramp up mining and fuel fabrication to meet the accelerating demand driven by a second nuclear age.

The urgency to rebuild America’s nuclear fuel supply chain is intensified by geopolitical competition and economic pressures, as China has tripled its electricity generation capacity since 2010, leaving the U.S. struggling with high power costs that hinder re-industrialization efforts. Industry leaders like Scott Nolan emphasize adopting a high-performance, speed-focused culture inspired by companies such as SpaceX to overcome regulatory and cultural challenges, coordinating multiple complex work streams simultaneously to avoid delays and ensure the U.S. can compete effectively in the evolving global energy landscape.

The U.S. nuclear renaissance is marked by rapid technological innovation and diverse reactor designs, with several advanced projects underway at key sites such as TerraPower’s Natrium plant in Wyoming, X-energy’s near-permit SMR, and Oklo’s groundbreaking at Idaho National Lab. These efforts span from large small modular reactors (SMRs) like Ontario Power Generation’s 300 MW GE-Hitachi BWRX in Canada and TVA’s Clinch River SMR, to microreactors aimed at replacing diesel generators in specialized applications, reflecting a broad spectrum of scalable nuclear solutions tailored to modern energy demands.

A new generation of industry players is reshaping the nuclear landscape beyond traditional utilities, with companies like Westinghouse, NuScale, GE Vernova, and startups such as Aloto Atomics and Antares driving innovation in SMRs and novel reactor designs. Antares’ recent milestone of bringing its Mark-0 reactor to criticality—the first novel design tested in over 50 years—exemplifies this acceleration, fulfilling President Trump’s 2025 executive order goals and signaling a transition from experimental testing to electricity production within a remarkably short three-year development window.

Tech giants like Amazon and Google are pioneering new financing and customer models by investing in or committing to purchase power from advanced nuclear projects, such as Amazon’s stake in X-energy and Google’s agreement with Kairos Power. Meanwhile, startups like Oklo are innovating with service-based models that build, own, and operate reactors to serve specific industrial or data center customers directly, bypassing traditional grid sales and reflecting a shift toward flexible, customer-centric nuclear deployment.

Despite the technological strides, a critical bottleneck remains in securing specialized nuclear fuel, particularly high assay low-enriched uranium (HALEU) at around 19.75% enrichment, which maximizes energy density while avoiding weapons-grade classification. Currently, the U.S. must import this fuel from Russia due to a lack of domestic suppliers, posing a strategic challenge for scaling advanced reactors that rely on HALEU, underscoring the need for parallel investments in fuel supply chains to fully realize the potential of SMRs and microreactors powering data centers and industrial processes.

The U.S. government has catalyzed a transformative shift in nuclear energy development through a series of executive orders initiated under President Trump, which have garnered bipartisan support and fundamentally restructured the regulatory landscape. These orders set ambitious goals such as quadrupling the nuclear fleet by 2050, mandating the Nuclear Regulatory Commission (NRC) to license new reactors within 18 months, and directing the Department of Energy (DOE) to approve at least three small modular reactors (SMRs) by mid-2026. This regulatory momentum has not only accelerated project approvals but also fostered investor confidence, as industry leaders like Jeffrey Merrifield and Matt Kittell highlight the sector’s newfound pace and excitement, with partnerships between established and emerging players smoothing the path through complex licensing and funding hurdles.

Complementing regulatory reforms, the U.S. government has deployed innovative funding mechanisms to scale nuclear manufacturing and licensing, exemplified by the DOE’s $900 million milestone-based IDIQ contract awarded to Halo Enrichment. This approach, akin to NASA’s model with SpaceX, releases capital contingent on meeting construction and development milestones, thereby de-risking investments in a traditionally capital-intensive sector. Additionally, the Export-Import Bank’s Letter of Intent to back contracts in Japan and Korea empowers U.S. nuclear firms to compete globally while reinforcing national security by reducing reliance on Russian and Chinese enrichment services, illustrating a strategic blend of financial support and geopolitical foresight.

Regulatory reforms have also targeted longstanding technical and procedural barriers, with the NRC’s ALARA (As Low as Reasonably Achievable) radiation exposure rule undergoing critical reconsideration to eliminate what has been dubbed the 'zero banana rule' that effectively stifled new plant construction. By redefining this standard and designating nuclear plants powering AI facilities as 'defense-critical infrastructure,' the government has created regulatory pathways that can bypass protracted NRC reviews, thereby expediting project timelines. These changes, coupled with financial incentives such as cheap loans and streamlined licensing processes, represent a holistic policy effort to enable a rapid domestic scale-up of nuclear fuel manufacturing and deployment.

Despite the capital-intensive nature and complex legal environment of nuclear energy, ongoing government backing and regulatory reforms have cultivated a more favorable investment climate. Industry voices like Troy Edwards emphasize that the economic benefits and energy security imperatives driving these efforts outweigh the challenges, with projects currently gaining approvals across uranium supply and enrichment sectors. This evolving ecosystem, supported by milestone-driven funding and accelerated licensing, signals a robust foundation for the anticipated second nuclear age in the United States.

The explosive growth of AI data centers is dramatically reshaping nuclear power demand, with tech giants like Microsoft securing long-term contracts at premium rates—such as the $115/MWh deal for Three Mile Island’s output—fueling nuclear companies’ soaring valuations exemplified by Oklo's rise from an $850 million SPAC merger in 2024 to a $30 billion market cap in 2025. This surge is mirrored globally, as the International Energy Agency projects data center electricity consumption doubling from 460 TWh in 2024 to 945 TWh by 2030, prompting countries like France, China, Japan, and South Korea to embed nuclear power into their AI and energy strategies to ensure stable, reliable supply for burgeoning AI infrastructure.

However, the economic sustainability of this AI-driven nuclear expansion is under intense scrutiny, as experts warn that the AI demand narrative may be overinflated due to intrinsic limitations of large language model architectures and speculative overinvestment, risking a potential bubble collapse that could leave advanced nuclear projects stranded without sufficient baseload demand. This precariousness is compounded by uranium supply challenges, where a looming deficit of over one billion pounds over the next two decades threatens to delay critical mining investments if speculative price corrections driven by AI market volatility suppress uranium prices, thereby exacerbating supply risks heading into the 2030s.

Geopolitical tensions, notably Russia’s invasion of Ukraine, have reinforced the strategic imperative for nuclear energy as a pillar of energy security, halting European nuclear phaseouts and fostering bipartisan U.S. political support manifesting in tax credits and incentives. Yet, these dynamics also reveal complex energy market interplays, as Russian influence historically suppressed fracking in Europe—partly due to its competition with nuclear power—highlighting how geopolitical maneuvering continues to shape the competitive landscape for nuclear’s resurgence amid the AI-driven energy race.

Beyond sheer capacity, the economic viability of expanding nuclear power to meet AI data center demand hinges critically on reducing electricity costs to enable the reshoring of energy-intensive manufacturing sectors like aluminum and steel, where power expenses dominate production costs. This shift in investor focus—from aggressive capital deployment to scrutinizing power cost efficiency and return on investment—is evident as companies like Microsoft develop proprietary AI models to cut operating expenses, while infrastructure challenges such as transmission delays, cooling water scarcity, and public resistance continue to complicate the path to a sustainable, AI-powered nuclear renaissance.