Argentina Launches 700 MW Energy Storage Tender to Enhance Grid Stability
Argentina’s federal energy department has initiated a tender process, known as AlmaSADI, to add 700 megawatts (MW) of energy storage capacity to the nation’s grid. This move follows the successful AlmaGBA auction last year, which focused on addressing demand spikes in the Buenos Aires metropolitan area. The new tender aims to reinforce critical nodes within the Argentine Interconnection System (SADI) and mitigate power outages across several regions.
Details of the AlmaSADI Tender
The AlmaSADI tender seeks 700 MW of capacity with a four-hour discharge duration. The call for bids was formalized through Resolution SE 50/2026, with an estimated investment of USD 700 million and contracts potentially lasting up to 15 years. CAMMESA, the administrator of Argentina’s wholesale electricity market, will act as the offtaker, with remuneration primarily linked to the availability of power capacity.
Key Dates in the Tender Process
- Presentation of technical and administrative bids (Envelope A): May 8, 2026
- Evaluation of proposals: Until May 21, 2026
- Publication of qualification results: May 28, 2026
- Opening of economic bids (Envelope B): June 5, 2026
- Expected awards: June 19, 2026
- Contract signings: Starting June 25, 2026
Regional Capacity Allocation
The tendered capacity will be distributed across several regions of Argentina, with the following allocations:
- Buenos Aires (excluding Greater Buenos Aires – AMBA): 150 MW
- Central region: 100 MW
- La Pampa: 50 MW
- Litoral: 220 MW
- Northeast Argentina (NEA): 250 MW
- Northwest Argentina (NOA): 120 MW
Projects must have a capacity ranging from 10 MW to 150 MW, or match the specific capacity defined for each connection node.
Building on the Success of AlmaGBA
The AlmaSADI tender builds upon the experience of AlmaGBA, which awarded 713 MW in critical nodes within the Buenos Aires metropolitan area. Winners of the AlmaGBA tender signed contracts with distributors Edenor and Edesur, with CAMMESA acting as a guarantor. The entire AlmaSADI process is expected to be completed in less than four months, from the publication of the tender documents to contract execution. Contractual obligations are slated to begin on January 1, 2027, with a commercial operation deadline of December 31, 2029.
Significance for Argentina’s Energy Sector
This initiative underscores Argentina’s commitment to strengthening its energy infrastructure and enhancing grid reliability. By deploying battery energy storage systems (BESS), the country aims to address supply-demand gaps and provide fast-response reserve services, ultimately reducing the frequency and impact of power outages.