Argentina awards 667MW in first energy storage tender

September 4, 2025
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Argentina has awarded 667MW BESS in its first energy storage tender
Casa Rosada, seat of the Argentinian government. Awarded projects are expected to begin operations in the next 12 to 18 months. Image: Benjamin R. via Unsplash.

Argentina has awarded 667MW of battery energy storage system (BESS) in its first tender under the AlmaGBA scheme.

Nearly half of the volume submitted for the tender (1.3GW) has been awarded by the wholesale market operator CAMMESA (Compañía Administradora del Mercado Mayorista Eléctrico Sociedad Anónima). This is also slightly above the initial capacity sought for the tender, which was set at 500MW.

The AlmaGBA tender aims to secure capacity for utilities Edenor and Edesur in the capital, Buenos Aires.

The awarded projects from the first Argentinian BESS tender are expected to begin commercial operations in the next 12 to 18 months. According to the Argentinian government, the investment in the BESS projects will surpass US$540 million.

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The AlmaGBA tender was launched in February, with CAMESSA publishing last week the details for the awarded projects, including prices. The lowest price awarded was US$10,161/MW/month, while the highest price awarded was US$12,815/MW/month.

Most of the capacity awarded in the tender will be contracted through Edenor, with seven projects for a combined 500MW, while Edesur has contracted three projects for a combined 167MW.

Moreover, five projects—with a combined 222MW output—that have not been selected due to their price offer have been invited to improve their offer with the utilities at US$12,591/MWh/month.

The full list of projects awarded can be accessed here, while the list of projects invited to improve their offer can be accessed here (both in Spanish).

Energy-Storage.news’ publisher Solar Media will host the 4th annual Energy Storage Summit Latin America in Santiago, Chile, 14-15 October 2025. This year’s events bring together Latin America’s leading investors, policymakers, developers, utilities, network operators, EPCs and more, all in one place to discuss the landscape of energy storage in the region. Visit the official site for more info.

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