The National Electric Energy Agency (Aneel) informed today (29), in Brasília, that the tariff flag for May will be green for all consumers of the National Interconnected System, which covers most of the country. Thus, there will be no extra charge on the electricity bill, according to the agency. 
According to Aneel, due to the favorable conditions for energy generation, it is the first green flag announced to all consumers since the end of the water shortage period, which ran from September 2021 to April this year.
Real cost
Created by Aneel in 2015, the tariff flag system signals the real cost of the energy generated, enabling consumers to make good use of electricity. The calculation for triggering tariff flags takes into account, mainly, two factors: the hydrological risk (GSF) and the price of energy (PLD).
The tariff flags work as follows. The green, yellow or red colors (in levels 1 and 2) indicate whether the energy will cost more or less depending on the generation conditions, with the red flag being the highest cost and the green flag being the lowest.
