Energyear Brasil 2025 brought together experts from the photovoltaic market to discuss the prospects for the energy storage segment and the evolution of batteries in the country.
The event, which took place on February 5th and 6th at the Sheraton São Paulo WTC Hotel, addressed the importance of technology for the stability of the electrical grid, regulatory challenges and expansion opportunities in Brazil.
Among the highlights, the professionals emphasized the advancement of lithium batteries, the need for professionalization in the sector and the potential for applications in agribusiness and in isolated communities.
Battery evolution and demand growth
Mauro Fernando Basquera, LATAM Engineering Manager at Sungrow, highlighted the evolution of lithium batteries and their importance in the storage market. He explained that, like photovoltaic modules, batteries continue to advance in efficiency and capacity.
“When I started working at Sungrow, we were using 280 A cells. Now, we are using 314 A cells and, next year, we will be working with 600 A cells,” he said.
Basquera also presented data from the 2024 Energy Operation Plan, which predicts a growth in Brazil's load of 3,3% per year and an instantaneous demand of 120 GW by 2028. Currently, the highest demand recorded was 102 GW, in January 2025.
Batteries as advanced technology, not commodity
Andrey Oliveira, Director of Solutions at Huawei Digital Power Brazil, stressed that batteries are not commodities, but rather products with high embedded technology. He highlighted that there are two fundamental aspects to be considered: the storage system technology and the PCS (Power Conversion System) technology, which interacts between different energy sources.
“Unlike the inverter, which works by following the grid and providing power, the PCS needs to actively respond to the load demands. This means that the choice of the right equipment for each application must be made with a careful technical assessment,” he said.
He cited the agricultural sector and microgrids as examples, which require robust equipment to handle different operating conditions. Oliveira highlighted the need for dehumidifiers in environments such as the Amazon, where high humidity can compromise the durability of equipment.
“Another critical point is the PCS’s response to voltage dips and electrical transients, which occur, for example, when driving motors. Some equipment works in voltage generation mode, but cannot respond quickly to these variations, which can compromise the stability of the system,” he explained.
Energy storage and impact on electrical infrastructure
The Huawei executive also highlighted the positive impact of energy storage on electrical infrastructure, helping to postpone investments in distribution and reducing the need for major works.
“The BESS (Battery Energy Storage System) can be an efficient solution to optimize the electrical system without the need for complex environmental licensing or construction of new transmission lines,” he reported.
He also advocated greater involvement from academia and the carrying out of studies on the benefits of storage for the electricity sector, highlighting that the dissemination of knowledge is essential to accelerate the adoption of technology in Brazil.
Brazil is still in the early stages of adopting batteries
Ricardo Marchezini, Country Manager Brazil at Risen Energy, pointed out that the topic of batteries is still relatively new in Brazil, but that the current moment is crucial to demonstrate the expertise of companies that dominate this technology.
“Our market is still in its early stages, while countries such as the United States, Europe, Australia and Chile already have a more advanced level of implementation. We need to direct efforts towards training and strategic partnerships, so that Brazil can evolve in this segment”, he stressed.
Storage potential in agribusiness and isolated systems
André Sá, Sales Manager at Canadian Solar, provided data on the need for storage for isolated systems and applications in the agricultural sector. He highlighted that Brazil has 271 cities served by thermoelectric plants and that the goal is to reduce dependence on fossil fuels.
“Our goal is to turn off diesel generators and migrate to more sustainable solutions. In the irrigation sector, a study by the National Water Agency (ANA) indicates that 55 million hectares in the country already have water availability for irrigation systems, but still do not have adequate electrical infrastructure. Each hectare requires approximately 1 kW of power, which represents a potential market of 100 GWh for storage systems,” he explained.
The manager reinforced that, even in areas connected to the electricity grid, supply may be insufficient to meet demand, making battery solutions essential to ensure energy stability.
Sá also highlighted the importance of professional training for the development of the sector. “The market is growing rapidly, and there is a great need for qualified professionals to work with energy storage systems. Those who invest in knowledge and specialization will have great opportunities in this segment,” he concluded.
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An answer
They should present systems, basic projects and detailed projects of: Lithium-Ion Batteries (Li-ion), Lithium-Ion and Vanadium Flow Batteries, solid state batteries, lithium-sulfur, Lithium-Ion Batteries and Hybrid Systems among others!
I understand, I “believe” that practical and simple projects would greatly help Brazilian companies.