Embalse Nuclear Power Plant is the second nuclear power plant built in Argentina and its power is 656 MWe.

The plant is located on the south coast of the Rio Tercero reservoir in the province of Córdoba. Its construction began on May 7, 1974. On January 20, 1984, its commercial operation began and ended its first operating cycle on December 31, 2015.

After completing the Life Extension project, the plant successfully brought its reactor to critical on January 4, 2019, initiating the second operating cycle for a 30-year cycle.

The plant complies with all local and international requirements and, like all Argentine nuclear power plants, has an Operation License granted by the Nuclear Regulatory Authority. 



The Life Extension of the Embalse Nuclear Power Plant was a refurbishment process that allows it to operate for a new 30-year cycle.

The main activities carried out are the change of pressure tubes, steam generators and process computers.

The project directly employed more than 3,000 people and fostered the development of highly qualified national suppliers of deliverables and services.

The Life Extension Project of Embalse Nuclear Power Plant allows:
* Provide energy safe and reliably for more than 3 million inhabitants.
* Diversify the energy matrix, contributing to self-sufficiency.
* Reduce greenhouse gas emissions.
* Produce Cobalt 60 to supply the domestic market for medicinal and industrial applications, and for export.
* Maintain the source of work for more than 1000 families for the next 30 years.



informacion tecnica atucha 1


. Type of reactor: Pressure Tubes (CANDU)
. Thermal Power: 2.064 MWt
. Gross Electric Power: 656 MWe
Moderator and Coolant: Heavy Water (D20)
. Fuel: Natural Uranium




The construction of the plant began.


The pressure tubes were assembled in the reactor.


It was incorporated into the National Interconnected System with more than 5.5 million MWh per year.


The Plant Life Extension Project began with the feasibility and aging studies of the systems.


The third phase of the Life Extension Project of Embalse Nuclear Power Plant was developed, which included the replacement of steam generators, pressure tubes, calandria tubes and feeders, among other main components.


On January 4, the plant successfully reached reactor criticality and on August 22 obtained the commercial operation license for its second life cycle.





informacion tecnica atucha 1


Embalse Nuclear Power Plant produces, in addition to electrical energy, the cobalt 60 isotope, an element of great importance for applications in medicine, research and industry.

Argentina is one of the main suppliers of cobalt 60 in the world market.

How does it work