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The entry of new renewable plants, the favorable hydroelectric scenario and actions to decarbonize the sector contributed to an emission of 38.5 kg of carbon dioxide (CO2) for each MWh generated in 2023. According to data from the Ministry of Science, Technology and Innovation (MCTI), this is the lowest rate recorded in the country since 2012.
In 2023, Brazils National Interconnected System (SIN) recorded emissions of 38.5 kg of carbon dioxide (CO2) for every MWh generated. This is the lowest rate since 2012, according to data from the Ministry of Science, Technology and Innovation (MCTI). The entry of clean sources of electricity generation into the SIN, the very favorable hydroelectric scenario and the actions of the MME to reduce electricity generation from diesel contributed to this drop in CO2 emissions in 2023.
In the SIN, hydroelectric plants represented close to 70% of all verified electricity generation (561,583 GWh, from January to November 2023), while wind energy represented 15% of that total, according to data from the Chamber of Marketing of Electrical Energy (CCEE).
In 2023, Brazil expanded its installed electricity generation capacity by almost 20 GW, including distributed generation, with solar generation accounting for 69% of this expansion, followed by wind, with 25%. Solar power is expected to add another 9.3 GW in 2024.
These three main sources of electricity generation in Brazil reduce the need for thermal generation powered by fossil fuels, which causes high CO2 emissions. However, thermoelectric plants are still necessary to guarantee the energy security of the system.
Isolated Systems
The interconnection of isolated systems to the SIN has also greatly contributed to reducing the use of fossil fuels in the country. In 2023, the municipalities of Parintins and Itacoatiara, in the state of Amazonas, and Juruti, in Pará, received transmission lines that inserted these localities into the SIN, providing quality and security of electricity supply to these populations.
The interconnection reduces diesel generation and CO2 emissions into the atmosphere. One of the advantages is the reduction of spending on the Fuel Consumption Account (CCC), a rate paid by all electricity consumers. In 2023, Brazil saved 1.3 billion reais ($261 million) in the CCC, which reached 11.6 billion reais, less than what ANEEL expected for the year. The amount reached last year also represents a drop compared to the amount reached in 2022 (12.9 billion reais). |
