Argentina's long-standing nuclear program is at a crossroads, facing significant internal debate and external scrutiny. President Javier Milei's administration is pushing a revamped nuclear agenda, including the potential privatization of state-owned nuclear facilities and a renewed focus on uranium mining and exports. This shift has sparked concern among some scientists and former officials, who fear it could undermine Argentina's technological independence and reshape its role in the global energy market, potentially drawing closer ties with the United States in the nuclear sector.

Historical Context of Argentina's Nuclear Program
Argentina has a 75-year history in nuclear energy, with its program initially established for non-military purposes. The country operates three nuclear power reactors: Atucha I, Atucha II, and Embalse, contributing a notable portion to its electricity supply. The National Atomic Energy Commission (CNEA) has been central to this development, spearheading research and the design of domestic technologies, such as the CAREM Small Modular Reactor (SMR) prototype. Historically, Argentina aimed to be a leader in nuclear research and development in South America.
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Modernization and Privatization Push
President Milei's administration has outlined an ambitious "Argentine Nuclear Plan" aimed at revitalizing the sector. Key elements include:

Partial Privatization: The proposed sale of Nucleoeléctrica Argentina SA (Na-SA), the operator of the country's nuclear power plants, has drawn significant attention. This move signals a potential shift towards private investment and management in a sector traditionally controlled by the state.
Small Modular Reactors (SMRs): Argentina has been developing its own SMR designs, like the CAREM prototype, aiming for technological advancement and potentially new markets.
Uranium Development: A central component of the new plan involves restarting uranium mining and developing domestic reserves. This aims to meet internal fuel demands and establish Argentina as an exporter of uranium and fuel elements.
International Cooperation: There is an indication of increased collaboration with the United States in nuclear energy, contrasting with potential past engagement with Russian and Chinese entities.
Domestic Concerns and Criticisms
Despite the administration's forward-looking plans, significant concerns have been voiced within Argentina's scientific and nuclear communities:
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Energy Independence: Critics like Diego Hurtado, former vice-president of CNEA, express worry that the focus on exports and foreign partnerships could turn Argentina into an "energy colony," diminishing its capacity for self-sufficiency.
Financial Viability: Questions linger regarding the profitability and practical implementation of privatization plans, with the private sector reportedly hesitant to invest without guarantees.
Budgetary Constraints: Deep budget cuts have already impacted Argentina's nuclear research and development programs, jeopardizing projects like the CAREM SMR and the RA-10 research reactor. This raises doubts about the feasibility of ambitious new initiatives.
Talent Drain: Reports suggest that experienced engineers and researchers are leaving for the private sector due to funding uncertainties and program disruptions, potentially depleting the nation's nuclear expertise.
International Partnerships and Geopolitical Shifts
Argentina's nuclear strategy appears to be undergoing a geopolitical redefinition:
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US Alignment: The push for a stronger nuclear relationship with the United States is noted, particularly in the context of global competition in the nuclear sector. This potential alignment aims to leverage US expertise and technology.
Data Center Ambitions: Plans exist to build nuclear-powered data centers in Patagonia, aiming to attract Big Tech companies and position Argentina as a hub for AI, fueled by nuclear energy.
Past Agreements: Previous agreements, such as those involving cooperation with Brazil on research reactors and potential projects with Rusatom Overseas, indicate a history of diverse international engagement.
Evidence of Programmatic Disruption
Evidence points to a period of flux and uncertainty within Argentina's nuclear sector:
Dormant Construction Sites: Some former construction sites for nuclear projects are reported to be inactive.
Funding Uncertainty: Concerns over funding have been explicitly mentioned in relation to key projects like the CAREM SMR, leading to ordered reviews of its design.
Expert Departures: Physicists and scientists are noted to be leaving established research institutions for private sector roles.
Future Outlook and Unanswered Questions
The success of Argentina's revitalized nuclear plan hinges on several factors:
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Addressing Funding Gaps: The administration must secure stable and adequate funding to overcome the impact of past budget cuts and support new projects.
Private Sector Confidence: Building trust and providing clear incentives will be crucial to attract the necessary private investment for privatization initiatives.
Balancing Domestic Needs and Exports: The strategy must balance the imperative of energy security and technological development for Argentina with its aspirations for uranium and fuel element exports.
Clarifying International Roles: The extent and nature of future international partnerships, particularly with the United States, will shape the trajectory of Argentina's nuclear capabilities.
The coming months will likely reveal whether Argentina's nuclear ambitions can translate into concrete progress, navigating the complexities of technological advancement, economic realities, and geopolitical considerations.
Sources:
The Guardian: ‘We’re being turned into an energy colony’: Argentina’s nuclear plan faces backlash over US interests (Published: ~February 9, 2026 - Note: The provided date is in the future; likely a publication date of the article and not when the events occurred)
Buenos Aires Times: Nucleoeléctrica sell-off: Discontent in nuclear sector over Milei’s ‘geopolitical’ turn (Published: October 10, 2025)
World Nuclear Association: Argentina Nuclear Power Profiles (Accessed through Brave)
URL: https://world-nuclear.org/information-library/country-profiles/countries-a-f/argentina
Science: Spending cuts imperil Argentina’s ambitious nuclear research programs (Accessed through Brave)
Nature: Argentina’s pioneering nuclear research threatened by huge budget cuts (Published: May 7, 2024)
Nature: Inside an Argentinian nuclear reactor, science and politics collide (Accessed through Brave)
URL: https://www.nature.com/immersive/d41586-024-04016-7/index.html
Rest of World: Argentina hopes to attract Big Tech with nuclear-powered AI data centers (Published: May 21, 2025)
Nuclear Business Platform: Argentina’s Atomic Future: From Legacy Reactors to Next-Gen SMRs (Published: May 17, 2025)
URL: https://www.nuclearbusiness-platform.com/media/insights/argentina-atomic-future
Bowtied Mara: Argentina's Nuclear Ambitions (Published: July 9, 2025)
URL: https://www.bowtiedmara.io/p/argentinas-nuclear-ambitions
World Nuclear News: Argentina aiming for SMR and uranium developments (Published: June 6, 2025)
URL: https://www.world-nuclear-news.org/articles/argentina-sets-out-smr-and-uranium-plans
World Nuclear News: Argentina aims to be nuclear pioneer, President Milei says (Published: December 23, 2024)
Wikipedia: Nuclear power in Argentina (Published: May 30, 2025 - Status: Low Priority)