Brazil Sets Record with 6,091 Projects in Its First Battery Storage Auction

Brazil's Empresa de Pesquisa Energética (EPE) registered 6,091 projects totaling 296,807 MW in the country's first battery energy storage auctions, a record level of participation in the electricity sector, according to the agency, which published the registration data on August 3, 2026. The volume corresponds to approximately 297 GW of registered capacity.

The auctions, designated Capacity Reserve Auctions (LRCAP) 2026, were established under Normative Ordinance 136/2026 of the Ministry of Mines and Energy (MME) and are structured as two separate rounds: the LRCAP 2026 National Storage, for systems with domestic content, and the LRCAP 2026 Storage, open to all eligible projects. Registration does not equal qualification: projects will undergo EPE's technical review and certification process, after which the qualified capacity will be announced. The massive registration reflects, according to EPE, investor appetite to support the adoption of renewable energy sources and to optimize the grid, in a market where wind and solar generation in the northeast frequently exceeds consumption or transmission capacity and the grid operator orders temporary curtailments. The registration was also confirmed by Valor Econômico.

Winners will sign 15-year contracts to supply capacity availability to the National Interconnected System (SIN) starting in 2028. The auctions are scheduled for December 2 and 4, according to the EFE news agency. The rules require entirely new batteries, ready to inject electricity on demand from the grid operator, particularly during periods of peak demand or supply constraints. Companies such as Petrobras, WEG, Engie, and ISA Energia Brasil have expressed interest in participating: ISA already operates a 30 MW battery system in Registro, in the state of São Paulo, as reported by Diario Financiero. The scale of the registration confirms that battery storage has moved from pilot project to a major investment category in South America's largest electricity market.

The next milestone is EPE's technical qualification process, whose results will determine how much qualified capacity will compete in the December auctions. The conversion of nearly 297 GW in registered capacity into effectively contracted capacity will be the key signal to watch for the regional battery market.

This article was written with artificial intelligence assistance based on verified sources and reviewed by a human editor before publication.