US-based energy firm Meitner Energy has presented plans to the Argentine government to build a 300 MW small modular reactor (SMR) at the Atucha nuclear power station site in Argentina with an investment of $1.2bn (€1.05bn).
The Argentine government confirmed Meitner Energy plans to build its Generation III+ ACR-300 pressurised water small SMR at the Atucha site, around 120 km from the capital Buenos Aires.
Argentina has three operating commercial power reactors, a Candu unit at the Embalse nuclear station and two KWU-designed units at Atucha.
Together, they provided around 7.3% of the country’s electricity demand in 2025, according to the International Atomic Energy Agency (IAEA).
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