Brazil ONS warns of thermal dispatch from Sept amid Super El Niño

Brazil's grid operator ONS projects a 'superior' El Niño scenario lasting until Feb 2027, with less favorable hydrometeorological conditions in the Southeast/Central-West, potentially triggering thermal power plant dispatch starting in September. This signals a shift from hydroelectric reliance to costlier thermal generation, raising electricity costs and inflation risks. The forecast is preliminary and depends on actual rainfall.