en.Wedoany.com Reported - The Brazilian Electricity Regulatory Agency (Aneel) recently signed its first authorization, approving the addition of a co-located energy storage system (SAE) at the Brotas 7 photovoltaic power plant in Uibaí, Bahia. This marks Brazil's first approval of such a battery storage unit connected to a solar power plant. The co-located storage system is installed adjacent to the power plant, sharing grid connection infrastructure. It can store energy and feed it into the grid during peak demand periods, enhancing the stability and efficiency of the power system.
The co-located energy storage system at the Brotas 7 PV plant utilizes lithium-ion battery technology, with a rated capacity of 5,016 kilowatt-hours and a total installed power of 1,250 kilowatts. When integrated into the photovoltaic plant, its conversion system capacity can reach 2,300 kilowatts, with an inverter output voltage of 0.60 kilovolts. The system can draw energy from the PV plant itself or the grid but is prohibited from directly connecting to other power plants within the complex. It shares the generation plant's metering and billing systems, adhering to the regulatory framework for co-located storage systems.
During the authorization ceremony, Aneel's General Director, Sandoval Feitosa, stated: "Batteries provide a medium- to short-term solution to the increasingly intense energy issues. The expansion of renewable energy in Brazil in the coming years points to very strong growth, so we need a regulatory framework that provides security for investors and fosters the development of the supply chain, thereby ensuring the power system continues to deliver good performance results." The event was also attended by Aneel Director Agnes da Costa, technical teams, and representatives from the Brazilian Solar Photovoltaic Energy Association (Absolar), the Brazilian Wind Energy Association (Abeeólica), and the Brazilian Energy Storage Solutions Association (ABSAE).
Statkraft's Brotas Solar Complex also received authorization to share transmission infrastructure with the Sant'Eugenia Wind Complex, further optimizing energy distribution. In October 2025, Aneel issued specific guidelines for installing co-located energy storage systems in already licensed power plants, providing clear regulations for similar projects and aiming to promote the synergistic development of energy storage technology and renewable energy in Brazil.
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