Nuclear power plant in Buenos Aires, Argentina. Approximate location -33.967, -59.2059.
NuclearBuenos AiresArgentina
ATUCHA I is a 370 MW nuclear power station in Buenos Aires, Argentina. It is operated by NASA. Based on its capacity (estimated), it can supply roughly 833,451 homes (estimated). It ranks #31 of 236 Argentina power plants by installed capacity. Commissioned in 1974, it is around 52 years old — an older, legacy facility. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 7.0% of Argentina's electricity; the national grid averages 346 gCO₂/kWh (41.6% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id ARG0000029.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by NASA. All plants by this company →
This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Southern Hemisphere, latitude 34.0°S — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 65% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 25/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
The #3 largest nuclear power plant of 3 in Argentina by capacity.
Argentina has 3 nuclear power plants in this dataset, together about 1,763 MW of capacity.
Coordinates -33.967, -59.2059 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
