The projects awarded in Argentina's BESS tender , called " AlmaSADI " and promoted by CAMMESA, must incorporate approximately 25% more storage capacity from the start to meet the four hours of offloading capacity per year 15, as established in the tender specifications.
“CAMMESA’s main requirement for the AlmaSADI tender is a four-hour storage capacity that must be met by year 15 of the project’s operation. To achieve this, installing a project with a five-hour offloading capacity in year 0 allows us to comply with the tender requirements by year 15,” stated Tomás Fuentealba , application engineer at Sungrow .
The direct consequence is an increase in the developers' initial investment, given the amount of equipment that would be installed to meet the requirements—in other words, higher CAPEX. As for the project's operation, given its scale, it would simply mean greater equipment management.
The explanation was presented during a new edition of the “Sungrow Experience – Technical Sessions: LATAM Tour” , a technical meeting that the company held in Buenos Aires for developers, EPC contractors, integrators, utilities and leaders in the energy sector.
The event was part of Sungrow's regional rollout in Latin America, following similar gatherings in the Dominican Republic and Guatemala. This time, the company chose Argentina at a time marked by strong interest in the storage tender launched by CAMMESA.
The Sungrow Experience event and its format took on particular significance given the scale of the call for bids. The tender received 235 offers for a total of 8,335.9 MW of storage capacity, compared to an initial demand of 700 MW plus a 10% tolerance.
The projects are distributed across critical nodes in the Northwest, Northeast, Central, Litoral, Cuyo, and Buenos Aires regions, excluding the Metropolitan Area. In addition to the four-hour offloading period, they must meet a minimum of 180 annual operating cycles.
The level of participation revealed a storage pipeline far exceeding the volume to be awarded in this first stage. Without a significant increase in planned capacity, over 7,000 MW of projects could be excluded from the process.
The administrative and technical evaluation of the proposals is currently being handled by CAMMESA and the Ministry of Energy. Preliminary results will be released on June 16, while the opening of the financial bids is scheduled for June 24 and the contract award for July 8.
A market that attracts global manufacturers
The interest generated by the call also began to mobilize international technology providers seeking to position themselves in the Argentine storage market.
In that context, Sungrow held a new edition of the “Sungrow Experience – Technical Sessions: LATAM Tour” in Buenos Aires, a meeting aimed at developers, EPC contractors, integrators, utilities and specialists in the energy sector.
The event took place at Rooftop Puerto Madero and covered power electronics solutions, BESS systems, services, logistics and grid-forming technologies for network integration and stability.
For the company, the response obtained through the tender confirms the potential that Argentina presents for the development of large-scale storage.
“Chile has given us the expertise, and in November 2025 we decided to fully commit to Argentina and replicate the strategy. We also did this in Mexico and Central America. We expect to grow significantly in Argentina,” stated Gonzalo Feito , Latin America Director of Sungrow.
“We want to replicate the triangle of a premium brand: innovation in both solar and BESS, increased density, and bankability. We're not here to take advantage of the peak and leave, but to be here until the last day of operation,” he added.