What does it take to stabilize a national power grid while preparing it for the future? In emerging energy markets, the answer increasingly lies in pairing legacy generation assets with modern storage solutions. Central Puerto’s latest financing milestone reflects exactly that balance, signaling a pivotal moment for Argentina’s power sector.

Central Puerto has secured $300 million in financing from the International Finance Corporation to support the acquisition of the Piedra del Aguila hydroelectric plant and the development of a large-scale battery energy storage system. The funding package underlines a long-term strategy focused on asset consolidation, grid resilience, and modernization at a national scale.

Piedra del Aguila is one of Argentina’s most critical power assets, with an installed capacity of 1.44 GW. Located along the Limay River, the hydroelectric facility plays a vital role in maintaining national grid stability and ensuring reliable baseload generation. The plant was awarded to Central Puerto in December 2025 as part of Argentina’s reprivatization process, marking a significant shift in ownership toward experienced domestic operators.

The IFC-backed financing will be used to acquire shares in the hydro plant, strengthening Central Puerto’s generation portfolio while securing long-term operational control over a cornerstone asset. Hydropower’s flexibility and scale make it particularly valuable in a system that is increasingly integrating variable renewable energy sources.

Beyond the acquisition, the financing also supports the development of the Nuevo Puerto Battery Energy Storage System. With a planned capacity of 150 MW, it is the largest utility-scale battery project awarded in Argentina to date. This project represents a decisive step toward modern grid management, where storage complements traditional generation rather than replacing it.

Battery energy storage systems are essential for smoothing demand fluctuations, managing peak loads, and reducing operational risk. In Greater Buenos Aires, where demand volatility can strain infrastructure, the Nuevo Puerto BESS will provide fast-response capacity that enhances reliability and system flexibility. The project is expected to reach commercial operation by December 2026.

Together, the hydro acquisition and battery deployment create a more resilient and adaptive power system. Central Puerto gains diversified assets, regulators benefit from improved grid stability, and consumers see reduced risks during peak demand periods. This integrated approach illustrates how legacy infrastructure and advanced technology can work in tandem.

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