Nucleoeléctrica Argentina

What Nucleoeléctrica Argentina does

Nucleoeléctrica Argentina S.A. is a state-owned Argentine public limited company (Sociedad Anónima) that operates the country's three nuclear power plants — Atucha I (362 MWe), Atucha II (745 MWe), and Embalse (656 MWe) — with a combined installed capacity of 1,763 MW. The company generates baseload electricity from PHWR (Pressurized Heavy Water Reactor) and CANDU-type (Canadian Deuterium Uranium) reactors, using heavy water as moderator and coolant with natural and slightly enriched uranium fuel. Atucha I is currently undergoing a USD 463 million life extension project (2024-2027) to extend operations by 20 years, while Embalse operates on an extended 30-year cycle following its 2016-2019 refurbishment. The Cobalt-60 isotope is produced at Embalse in collaboration with CNEA and Dioxitek for medical and industrial applications.

The company's revenue model is anchored in selling electricity to the Wholesale Electricity Market (MEM), the state-regulated Argentine grid, in a single-customer-of-record structure. A second revenue stream — international nuclear services — was formalized via a new business unit and an MoU with Candu Energy Inc. (AtkinsRéalis) signed in 2025 to export engineering, maintenance, and technical assistance for CANDU reactors worldwide. Additional income derives from Cobalt-60 production and ancillary services. Ownership is 79% National Ministry of Economy, 20% CNEA, and 1% ENARSA, with the firm operating under Nuclear Regulatory Authority (ARN) licensing and embedded in international nuclear governance through WANO, IAEA, COG, and ABACC. The company is investing in supporting infrastructure including ASECG II dry spent fuel storage (USD 137 million, 2023-2027), a new antisismic emergency control center at Embalse (CICE), and a national supplier development program (PROVNAC).

Name

Nucleoeléctrica Argentina

Legal name

Nucleoeléctrica Argentina S.A.

Website

https://na-sa.com.ar

Company type

Public

Founded year

1968

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Nucleoeléctrica Argentina S.A. is a state-owned Argentine company that operates the country's three nuclear power plants — Atucha I, Atucha II, and Embalse (1,763 MW total) — selling baseload electricity to the Wholesale Electricity Market (MEM), producing Cobalt-60, and exporting nuclear services internationally.

Ownership category

akta.pro rank

Product category

Nuclear Power Generation

NAICS

Nuclear Electric Power Generation (221113), Electric Power Generation (22111)

akta.pro primary industry

Nuclear Power Plant Operations & Maintenance (O&M) (EUACADAO)

akta.pro secondary industries

Independent Spent Fuel Storage Installation (ISFSI) Development, Licensing & Operations (EUAKAHAC), Industrial Isotope Production & Supply (Co-60, Ir-192, Cs-137, Am-241, etc.) (EUAKAIAB), Spent Fuel Management Engineering, Consulting & Digital Tools (Thermal/Shielding/Criticality, QA) (EUAKAHAL)

Keywords

• Nuclear power generation
• Electricity generation services
• Nuclear plant operations
• Spent fuel storage
• Cobalt-60 production

Headquarters

HQ city

Laprida

HQ country

Argentina

HQ region

Latin America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Electricity Generation and Commercialization: Nucleoeléctrica generates nuclear energy through three power plants and commercializes the electricity produced in the Wholesale Electricity Market (MEM). Total installed capacity is 1,763 MW across Atucha I (362 MWe), Atucha II (745 MWe), and Embalse (656 MWe).
2. Nuclear Services Export: The company exports nuclear services internationally including technical assistance, engineering, and maintenance for CANDU-type nuclear power plants. A new business unit was created to expand nuclear services worldwide.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Nucleoeléctrica Argentina operates Argentina's three nuclear power plants (Atucha I, Atucha II, and Embalse) with a combined installed capacity of 1,763 MW, generating and commercializing baseload electricity into the Wholesale Electricity Market (MEM). The company also produces Cobalt-60 isotope at Embalse for medical and industrial applications and exports nuclear engineering, maintenance, and technical assistance services for CANDU-type reactors worldwide.

Product overview

Nucleoeléctrica Argentina S.A. is the state-owned operator of Argentina's three nuclear power plants — Atucha I (362 MWe), Atucha II (745 MWe), and Embalse (656 MWe) — with a combined installed capacity of 1,763 MWe. The core offering is nuclear electricity generation sold into the Wholesale Electricity Market (MEM). The portfolio includes three operational power plants (Atucha I currently undergoing life extension, Atucha II and Embalse at full capacity), spent nuclear fuel management infrastructure (ASECG I and ASECG II dry storage), and Cobalt-60 isotope production at Embalse for medical and industrial applications. The company also provides nuclear services internationally and operates supporting programs: a Supplier Portal for procurement management, a Public Information Request system for regulatory transparency, a national Supplier Development Program (PROVNAC), and a Social Responsibility Program (CuidaRSE) covering education, health, and environment in plant communities. Environmental monitoring services and the Visits Program for public education round out the non-generation offerings.

Differentiator

Problem solved

Functional benefit

Products and services

• Central Nuclear Atucha I Atucha I is the first nuclear power plant in Latin America, with a gross electrical output of 362 MWe, using a Siemens pressure vessel reactor with heavy water as coolant and moderator, and slightly enriched uranium (0.85% ULE) as fuel. The plant provides baseload electricity to Argentina's national grid and is undergoing a life extension project for an additional 20 years of operation.
• Central Nuclear Atucha II Atucha II is a nuclear power plant located in Lima, Zárate, with a gross electrical output of 745 MWe, using a pressure vessel reactor with heavy water as coolant and moderator and natural uranium as fuel. The plant supplies baseload electricity to the Argentine Wholesale Electricity Market (MEM).
• Central Nuclear Embalse Embalse is Argentina's second nuclear power plant with a gross electrical output of 656 MWe, using a CANDU-type pressure tube reactor with heavy water as coolant and moderator and natural uranium as fuel. The plant completed a life extension project enabling 30 additional years of operation and provides electricity for more than 3 million inhabitants.
• Cobalt-60 Production Cobalt-60 isotope produced at Embalse Nuclear Power Plant through irradiation of cobalt bars in the reactor (21-bar capacity), in collaboration with CNEA and Dioxitek. Argentina is one of the world's leading suppliers of Cobalt-60 for medical and industrial applications such as sterilization and cancer treatment.
• International Nuclear Services

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Candu Energy Inc. (AtkinsRéalis)coreStrategic or Co-development Partner · 17 November 2025Nucleoeléctrica Argentina and Canadian company Candu Energy signed a Memorandum of Understanding (MoU) to cooperate in providing engineering services, technical assistance, and maintenance for CANDU-type nuclear power plants worldwide. The partnership leverages Argentina's experience with Embalse NPP's successful life extension and Canada's CANDU technology expertise.
• World BankminorStrategic or Co-development Partner · 1 January 2025World Bank specialists visited the Atucha Nuclear Power Plant as part of nuclear sector cooperation activities.
• Qinshan-3 Nuclear Power Plant (China)minorStrategic or Co-development Partner · 22 March 2022Agreement to provide technical assistance to Qinshan-3 nuclear power plant in China, making available Nucleoeléctrica's nuclear operational expertise.
• Ontario Power Generation (Canada)minorStrategic or Co-development Partner · 4 January 2022Contract for Nucleoeléctrica to provide services to the Canadian company Ontario Power Generation, building on experience gained in steam generator replacement from Embalse life extension project.
• Brazilian-Argentine Agency for Accounting and Control of Nuclear Materials (ABACC)coreOthers · 1 January 1991Binational body created by Brazil and Argentina responsible for verifying peaceful use of nuclear materials and preventing use in weapons of mass destruction.
• World Association of Nuclear Operators (WANO)coreOthersNucleoeléctrica is a member of WANO, an international organization that contributes to continuous improvement of nuclear power plants, promoting safety. The company undergoes WANO peer reviews.
• International Atomic Energy Agency (IAEA/OIEA)coreOthersArgentina is a member since the IAEA's origin. The company applies international practices recommended by the IAEA and participates in technical cooperation programs including the Lise Meitner program for young nuclear professionals.
• CANDU Owners Group (COG)coreOthersNucleoeléctrica is part of the CANDU-type Nuclear Power Plant Owners Group, a non-profit organization dedicated to cooperation, mutual assistance, and information exchange for development, operation, and maintenance of CANDU facilities.
• Comisión Nacional de Energía Atómica (CNEA)coreStrategic or Co-development PartnerCNEA is responsible for commercialization and uses of Cobalt-60 produced at Embalse. Dioxitek produces the cobalt bars, and Nucleoeléctrica irradiates them in the reactor.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• China National Nuclear Corporation (CNNC): State-owned Chinese nuclear operator and constructor with rapid fleet expansion and growing services exports. Comparable as a state-owned nuclear entity pursuing international growth, though predominantly in PWR/AP1000 technology.
• Tennessee Valley Authority (TVA): US federal corporation operating a mixed generation fleet including nuclear (Watts Bar, Sequoyah, Browns Ferry). Comparable as a government-owned integrated utility with nuclear baseload, though with broader generation mix and different regulatory framework.
• Rosatom: Russian state-owned nuclear corporation operating power plants and exporting services, fuel, and reactors globally. Comparable as a state-owned operator with an integrated services export model, though with geopolitical and technology differences.
• Korea Hydro & Nuclear Power (KHNP): State-owned South Korean nuclear utility operating 25+ reactors with a strong international services export business. Comparable as a state-owned operator that monetizes nuclear expertise abroad, though at much larger scale and with PWR technology.
• Électricité de France (EDF): World's largest nuclear operator with 56 reactors and deep life-extension expertise (Grand Carénage program). Comparable as a state-influenced operator executing multi-decade refurbishment roadmaps, though focused on PWR technology.

Direct peers

• Bruce Power: Canada's largest private-sector nuclear operator running multiple CANDU reactors, with a similar fleet-renewal and life-extension profile. Operates 8 CANDU reactors totaling ~6,200 MW, making it the closest operational and technological peer to NA-SA's Embalse.
• Ontario Power Generation (OPG): Provincial Crown corporation operating Pickering and Darlington CANDU nuclear stations. Already a customer of NA-SA's nuclear services, making it both a CANDU operational peer and a commercial counterpart in the international services trade.
• Nordion (Sterigenics): Canadian supplier of Cobalt-60 and other radioisotopes for medical and industrial use. Directly comparable to NA-SA's Cobalt-60 production at Embalse, serving the same global medical sterilization and irradiation market.
• Candu Energy Inc. (AtkinsRéalis): Original CANDU reactor vendor and nuclear services provider; NA-SA's MoU partner. Comparable in providing engineering, technical assistance, and life-extension services for CANDU reactors globally.

Others

• Comisión Nacional de Energía Atómica (CNEA): Argentine state-owned nuclear R&D entity and 20% shareholder of NA-SA. Directly comparable on Argentine nuclear capabilities (CAREM SMR project, fuel fabrication) and acts as both supplier and strategic partner to NA-SA's operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Nucleoelectrica
• Facebookfacebook.com/nucleoelectricaargentina
• LinkedInlinkedin.com/company/nucleoelectrica-argentina

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Nucleoeléctrica Argentina