Nuclear power in Argentina
nuclearchain.net/countries/argentina/ · data: Global Energy Monitor (GNPT, August 2026), CC BY 4.0 · printed from the live page
Argentina operates 3 nuclear power reactors across 3 sites, with 1.8 GW of gross capacity.
Operating fleet by type: PHWR (3). Principal operator: Nucleoelectrica Argentina.
In March 2025 the state operator NA-SA said Argentina would build four ACR-300 small modular reactors at Atucha, with the first targeted for 2030. Work on the CAREM prototype was halted in September 2024 amid budget cuts. Policy position as read on 2026-11-03: World Nuclear Association, Nuclear Power in Argentina (page dated 2026-10-23).
Operating capacity over time
Data table
| Year | Units online | GW gross | Change, GW |
|---|---|---|---|
| 1974 | 1 | 0.36 | +0.36 |
| 1984 | 2 | 1.02 | +0.66 |
| 2016 | 3 | 1.76 | +0.75 |
Only years in which capacity changed are listed.
Position in the fuel chain
| Facility | Stage | Operator | Capacity / output |
|---|---|---|---|
| Pilcaniyeu | enrichment | Comisión Nacional de Energía Atómica | not disclosed |
| Ezeiza and Córdoba (Conuar) | fabrication | Conuar | 200tHM/yr |
All units in Argentina
| Unit | Site | Status | Type | Gross MW | Online |
|---|---|---|---|---|---|
| Atucha nuclear power plant 1 | Atucha nuclear power plant | PHWR | 362 | 1974 | |
| Atucha nuclear power plant 2 | Atucha nuclear power plant | PHWR | 745 | 2016 | |
| Embalse nuclear power plant | Embalse nuclear power plant | PHWR | 656 | 1984 | |
| Atucha nuclear power plant SMR 1 | Atucha nuclear power plant | Announced | - | 300 | 2030 |
| Atucha nuclear power plant SMR 2 | Atucha nuclear power plant | Announced | - | 300 | - |
| Atucha nuclear power plant SMR 3 | Atucha nuclear power plant | Announced | - | 300 | - |
| Atucha nuclear power plant SMR 4 | Atucha nuclear power plant | Announced | - | 300 | - |
| Atucha nuclear power plant 3 | Atucha nuclear power plant | Shelved | PWR | 1,150 | - |
| CAREM nuclear power plant | CAREM nuclear power plant | Shelved | PWR | 29 | - |
Fuel supply exposure
The fuel families Argentina's operating reactors take, and the fabricators our sources document as able to make each. This is capability, not contracts: it does not say who actually supplies a given plant.
| Fuel family | Units | GW gross | Documented fabricators | Note |
|---|---|---|---|---|
| CANDU / PHWR bundles | 3 | 1.8 | Cameco Corporation, BWX Technologies, Nuclear Power Corporation of India, KEPCO Nuclear Fuel, China North Nuclear Fuel Company |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- Nuclear share of electricity: Our World in Data, from Ember and the Energy Institute , CC BY 4.0 · retrieved 2026-10-28
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data