Brazil BESS auction faces delay risk over ERCAP cost allocation impasse

Brazil's first battery energy storage system (BESS) auction, scheduled for December 2-4, may be postponed due to an unresolved regulatory dispute over who bears the Capacity Reserve Power Charge (ERCAP). Current law assigns the full cost to generators, but Aneel has yet to define implementation rules, creating uncertainty for the auction's viability. The outcome will determine the pace of Brazil's energy storage deployment and its grid integration.