The question is not whether nuclear "is the future." It is what specific problem it can address in a region that already has sun, wind, water, and yet still has gaps in firm energy, industrial water, and isotopes. The short answer is limited and useful: it will not triple the matrix on its own, and it is not the only instrument. It can cover what variable sources do not deliver at three in the morning, what diesel continues to burn in a mine, and what a hospital or a garden already need today.
Energy that does not depend on the weather
In a scenario of accelerated decarbonization, OLACDE projects that electricity consumption in Latin America and the Caribbean will nearly triple by 2050 (+156%). Generation capacity would need to triple, and gas would continue to provide a relevant fraction even on that path. Current nuclear is residual: about 5 GW in Argentina, Brazil, and Mexico. That is not a technical ceiling. It is what exists while the demand for data centers, electrified mining, and air conditioning grows.
What nuclear solves here is not "more energy." It is energy available when the reservoir is low or the wind is not blowing. Laguna Verde operates with a high capacity factor and licenses until 2050 and 2055. The reservoir has already extended its life. Angra 1 is on its path. That trade —shutdown, refueling, qualification— already exists. A new module, if it arrives, adds to that base. It does not replace it.
Water and diesel in the mine
The most tangible case is not in the urban grid. It is in northern Chile and in other operations where continental water is no longer sufficient and diesel remains the off-grid backup. Cochilco estimates that the electrical consumption associated with desalination and pumping in Chilean copper mining will increase from 3.4 TWh in 2025 to 5.4 TWh in 2034. Seawater is already, or will be, the main source for many operations. Desalting and raising water to over 3,000 meters is energy-intensive. A part of that energy today is fossil.
An SMR is not the only answer. It is one of the few that can provide electricity and heat continuously, on-site or near the site, without relying on a gas pipeline or a diesel convoy. Previous studies with IAEA codes have already compared that option against fossil solutions for operations like Escondida. The bottleneck is not imagining the use case. It is licensing, financing, and operating the first module. Until that happens, nuclear does not "solve" the mine. It shows that the problem exists and that there is a foundational tool that is not intermittent.
What is already billed: isotopes and the field
There is a nuclear market that does not wait for the first commercial SMR. Molybdenum-99, a precursor to diagnostic technetium-99m, and lutetium-177 are already produced or prepared in research reactors in the region. The Argentine RA-10 targets a relevant fraction of the global isotopes market. Brazil is building the RMB. Mexico has the ININ and a line of radiopharmaceuticals. That does not decarbonize the matrix. It serves hospitals. And it does so with reactors that do not deliver kilowatts to the grid.
In the field, the sterile insect technique has been around for decades. Mexico eradicated the Mediterranean fruit fly in Colima and operates breeding plants in the south. In the face of the return of the corn borer, there is a plant that aims to produce up to 100 million sterile flies per week. The IAEA launched a coordinated research project. It is not a power reactor. It is irradiation applied to a problem of animal health and trade. Those who measure the sector only by installed GW miss this bill.
What it does not resolve in the short term
Nuclear does not cover the shortfall of firm energy for 2026-2027 in several countries. Colombia just reminded us: the regulatory and institutional path takes about 15 years, not until next summer. Mexico did not include new builds in the PLADESE 2025-2039. Argentina has the CAREM under construction and delayed. Brazil still has no state decision on Angra 3. A well-chosen SMR can enter the list of solutions. It does not lead it tomorrow.
It also does not replace social acceptance or the regulator. Without social license, the plan is shelved, as we have already written. Without an organization that tells the truth about the risk, the perceived benefit is not enough. Nuclear solves technical and supply problems. It does not solve politics alone.
The useful map
What it can resolve, then, is limited:
- firm low-emission power for when variable renewables and water are not enough;
- electricity and heat for desalination and for operations that today rely on diesel;
- isotopes for medicine and industry;
- irradiation for agricultural health.
That is not a manifesto. It is a list of uses that already have a counterpart —an operator, a hospital, a SENASICA, a mining company— or that can have one if someone brings the parties together. The Nuclear Summit & Expo LATAM (Veracruz, March 1 and 2, 2028) is not going to build the module or license the site. It can make the conversation shift from “nuclear is clean” to “this mine needs X, this hospital needs Y, this regulator requires Z.” That is the difference between a slogan and a problem that can be worked on.
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Sources
- OLACDE. Latin America and the Caribbean Accelerates Its Energy Transition (December 2025). Electricity consumption +156% by 2050 in accelerated decarbonization scenario. https://www.olade.org/en/noticias/latin-america-and-the-caribbean-accelerates-its-energy-transition-renewables-lead-natural-gas-consolidates-and-electric-mobility-rebounds/
- World Nuclear Association. Nuclear Power in Mexico and profiles of Argentina and Brazil (2026). Regional operational capacity. https://world-nuclear.org/information-library/country-profiles/countries-g-n/mexico
- IAEA. Country Nuclear Power Profiles – Argentina (2026). https://cnpp.iaea.org/public/countries/AR/profile/highlights
- Cochilco / BNamericas. Electricity consumption for desalination and pumping in Chilean copper mining: 3.4 TWh (2025) to 5.4 TWh (2034). https://www.bnamericas.com/en/news/chile-copper-desalination-power-consumption-forecast-to-climb-60
- S&P Global. Water and energy pressures on mining costs in Chile (2026). https://www.spglobal.com/market-intelligence/en/news-insights/research/2026/04/water-energy-pressures-are-driving-up-chiles-mining-costs
- IAEA. Coordinated project on the burrowing worm (2026). https://www.iaea.org/projects/crp/d42019
- El Heraldo de Coatzacoalcos. Sterile fly plant, up to 100 million per week (October 2026). https://heraldodecoatzacoalcos.com.mx/nacional/113171-planta-producira-hasta-100-millones-de-moscas-esteriles.html
- World Nuclear News and local coverage. RA-10, RMB, and radioisotopes ININ (previous articles from the Summit).
- Portfolio. Colombia, EPM, and a horizon of about 15 years (October 2026). https://www.portafolio.co/energia/colombia-prepara-el-terreno-para-la-energia-nuclear-epm-se-suma-y-el-gobierno-avanza-en-la-regulacion-504859
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