Overview
- Aneel announced the decision on Friday, Oct. 30, to maintain the bandeira verde for November, meaning no additional tariff charge will appear on bills for consumers served by the Sistema Interligado Nacional.
- The regulator said the move reflects improved hydrological conditions after increased rains that stabilized reservoir levels and lowered the need to run costlier thermal plants.
- The Agência Nacional de Águas reported SIN reservoirs at 65.9% of usable volume for October, the second‑highest October level since 2015, a key data point cited by news outlets to support Aneel’s choice.
- Keeping the green flag removes the per‑100 kWh surcharge that applied under the yellow flag earlier this year, for example avoiding roughly R$3.77 extra on a 200 kWh monthly household bill before taxes.
- Aneel will reassess conditions monthly for December and beyond, with future flags depending on evolving rainfall, reservoir volumes, demand and generation costs, which could change the bill outlook.