Production
How sugarcane ethanol can cut emissions and reshape transport
Transport must cut emissions while cities seek cleaner air and fleets face tighter targets. Sugarcane ethanol can help because it works with existing engines and fuel infrastructure.
Biofuels offer a practical bridge for transport, especially where electrification is difficult. Sugarcane ethanol can lower lifecycle greenhouse gas emissions compared with gasoline.
Brazil launched Proálcool in 1975 in response to oil shocks. Over five decades, investment in research, agronomy and logistics built an established ethanol industry.
Integrated mills, strong logistics and a consumer market adapted to biofuel use underpin Brazil’s ethanol sector. Flex-fuel technology also helped make ethanol convenient for drivers.
In Brazilian conditions, sugarcane ethanol can reduce lifecycle greenhouse gas emissions by up to 90% versus gasoline, thanks to efficient processing and rapid crop regrowth.
Sugarcane absorbs carbon as it grows, while mills burn bagasse for heat and electricity. Using this residue on site improves processing efficiency and strengthens the fuel’s carbon performance.
Bagasse supplies heat and power, vinasse returns nutrients to fields, and surplus electricity can go to the grid. Cane straw and improved vinasse processing may add further value.
Compared with corn ethanol, sugarcane generally offers higher net energy yield and lower lifecycle emissions. Corn production can require more irrigation and compete more with food crops.
Mechanical harvesting and regulation have largely ended routine field burning. Preventing deforestation, enforcing zoning and improving soil management remain essential to limit environmental risks.
Brazil’s experience, strong emissions performance and integrated production make sugarcane ethanol a valuable part of decarbonization, with emerging potential in sustainable aviation fuel.
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