Brazil electricity prices surge 7.42% in September as Itaipu bonus effect reverses

Brazil's preliminary IPCA-15 inflation index shows electricity prices rose 7.42% in September 2026, reversing a 6.25% drop in August that was driven by the Itaipu bonus credit. The reversal reflects the end of the one-off R$ 872 million credit approved by Aneel, signaling a return to underlying energy cost pressures. This development matters for Brazilian inflation dynamics and could influence the central bank's monetary policy stance.