Katerina Swanson
Brazil has a long history of using ethanol fuel, which is a by-product of sugar mills. The first use of ethanol fuel in the country dates back to the 1920s and 1930s, with the introduction of the automobile. In 1975, the Brazilian government launched the National Alcohol Program to reduce the country's dependence on oil and promote the use of bioethanol as a fuel. This led to the development of flexible-fuel vehicles, which can run on gasoline, ethanol, or a blend of both. While not all cars in Brazil use alcohol fuel, the country has made significant progress in adopting ethanol as a fuel source, with flex-fuel vehicles dominating the market and contributing to a reduction in greenhouse gas emissions.
| Characteristics | Values |
|---|---|
| First use of ethanol fuel in Brazil | Late 1920s and early 1930s |
| First ethanol fuel production plant | Usina Serra Grande Alagoas (USGA), 1927 |
| First large-scale policy for ethanol fuel | National Alcohol Program (Proalcool), 1975 |
| Purpose of Proalcool | Reduce Brazil's dependence on imported oil |
| Feedstock for ethanol refineries | Sugar cane |
| First ethanol-capable car sold in dealerships | Fiat 147, July 1979 |
| First flex-fuel vehicle | Volkswagen Gol, March 2003 |
| Number of flex-fuel cars sold by June 2015 | 25.5 million |
| Number of flex-fuel motorcycles sold by March 2015 | 4 million |
| Ethanol consumption in 2008 | 56% more than in 2007 |
| Ethanol retail sales in 2008 | 50% market share of the gasoline-powered fleet |
| Ethanol fuel's impact on carbon emissions | Small direct impact, but indirect land-use changes may offset carbon savings |
| Ethanol fuel's impact on water quality | Negative |
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What You'll Learn
Brazil's history with ethanol fuel
During World War II, German submarine attacks threatened the country's oil supply, and the mandatory blend of ethanol in gasoline became as high as 50% in 1943. However, after the war, cheap oil caused gasoline-powered vehicles to prevail, and ethanol blends were only used sporadically until the 1970s oil crisis, which resulted in gasoline shortages and heightened awareness of the dangers of oil dependence. In response to this crisis, the Brazilian government began promoting bioethanol as a fuel.
In 1975, the Brazilian government launched the National Alcohol Program ("Pró-Álcool" in Portuguese), a nationwide program financed by the government to phase out automobile fuels derived from fossil fuels in favour of ethanol produced from sugarcane. The decision to use sugarcane was based on the low cost of sugar, the country's tradition of sugar production, and the idle capacity for distillation at sugar plants. The first phase of the program focused on producing anhydrous ethanol for blending with gasoline. By 1979, the first 16 gasoline stations began supplying hydrous ethanol, and the Fiat 147 became the world's first commercial ethanol-powered car. By 1985, about 75% of Brazilian passenger cars were manufactured with ethanol engines.
In the early 2000s, a new era of ethanol use began with the introduction of flex-fuel vehicles, which could run on any mix of ethanol and gasoline. The first carmaker to launch such vehicles in Brazil was Volkswagen, with the VW Gol in 2003. The rapid adoption and commercial success of "flex" vehicles, as they became known, increased ethanol consumption. By February 2008, ethanol retail sales surpassed a 50% market share of the gasoline-powered fleet, a level of ethanol consumption that had not been reached since the end of the 1980s.
As of 2015, flex-fuel light-duty vehicle cumulative sales in Brazil totalled 25.5 million units, and production of flex motorcycles totalled 4 million in March 2015. Today, 93% of cars in Brazil come with a flex-fuel engine, and the country has the world's largest transport matrix decarbonisation programme, RenovaBio, which is expected to increase the ethanol supply by 45% until 2030.
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The rise of flex-fuel vehicles
Brazil's history with ethanol fuel dates back to the late 1920s and early 1930s, with the introduction of the automobile in the country. In 1931, a decree was issued mandating a blend of 5% hydrated ethanol with all imports of gasoline by volume. The use of ethanol blends increased during World War II, with the mandatory blend reaching as high as 50% in 1943 due to threats to oil supplies from German submarine attacks. However, after the war, cheap oil caused gasoline to prevail, and ethanol blends were only used sporadically.
In the 1970s, the first oil crisis resulted in gasoline shortages and heightened awareness of the dangers of oil dependence. As a response, the Brazilian government began promoting bioethanol as a fuel through the National Alcohol Program - Pró-Álcool. This program aimed to phase out automobile fuels derived from fossil fuels and replace them with ethanol produced from sugarcane. The decision to use sugarcane was influenced by factors such as the low cost of sugar, idle capacity for distillation at sugar plants, and the country's tradition with this feedstock.
The first flex-fuel vehicles (FFVs) were introduced to the Brazilian market in 2003. These vehicles can run on any proportion of gasoline (E20-E25 blend) and hydrous ethanol (E100). A key innovation in Brazilian flex technology was avoiding the need for an additional sensor to monitor the ethanol-gasoline mix, which had made the first American M85 flex-fuel vehicles too expensive. The rapid adoption and commercial success of "flex" vehicles, as they are popularly known, led to increased ethanol consumption. By early 2008, ethanol retail sales surpassed a 50% market share of the gasoline-powered fleet, a level of ethanol fuel consumption not seen since the end of the 1980s during the peak of the Pró-Álcool Program.
The cumulative production of flex-fuel cars and light commercial vehicles reached 10 million in March 2010 and 15 million in January 2012. By the end of 2014, flex-fuel cars represented 54% of Brazil's registered stock of light-duty vehicles. As of June 2015, flex-fuel light-duty vehicle cumulative sales totaled 25.5 million units, with 15 car manufacturers producing flex-fuel engines. The success of flex-fuel vehicles in Brazil has made it the world leader in the sustainable use of bioethanol, setting a policy model for other developing countries.
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Government policies and their impact
Brazil's history with ethanol fuel is a long one, dating back to the late 1920s and early 1930s when the automobile was first introduced to the country. In 1931, a decree was issued mandating a blend of 5% hydrated ethanol with all imports of gasoline by volume. However, the use of ethanol blends remained sporadic until the 1970s when the first oil crisis occurred, resulting in gasoline shortages and a growing awareness of the dangers of oil dependence.
In response to the oil crisis, the Brazilian government began promoting bioethanol as a fuel. The National Alcohol Program, or Pró-Álcool, was launched in 1975 as a government-financed nationwide program to phase out fossil fuels, such as gasoline, and replace them with ethanol produced from sugar cane. This marked the beginning of Brazil's commitment to reducing its dependence on imported oil and developing its ethanol fuel industry.
The government's efforts to promote bioethanol and reduce oil dependence had a significant impact on the country's fuel landscape. By the end of the 1980s, ethanol consumption had reached a landmark, with retail sales surpassing a 50% market share of the gasoline-powered vehicle fleet. This level of consumption was not seen again until early 2008, when flexible-fuel vehicles, or "flex" vehicles, gained popularity. The success of flex vehicles, along with the mandatory blend of alcohol with gasoline (E25 fuel), led to a rapid increase in ethanol consumption.
In recent years, the Brazilian government has continued to implement policies to promote the use of biofuels and reduce greenhouse gas emissions. In 2017, the federal government launched RenovaBio, a program aimed at increasing the use of biofuels in the transportation sector to reduce GHG emissions. While RenovaBio does not include financial incentives from the government, it compels fuel distribution companies to purchase decarbonization credits from biofuel producers and importers.
Overall, Brazil's government policies and technological advancements have played a crucial role in the country's leadership in the sustainable use of bioethanol. The country has gained extensive experience in developing ethanol fuel policies and pursuing various objectives, from ensuring fuel supply to mitigating climate change. The flexibility of Brazilian flex vehicles has empowered consumers to choose their fuel based on market prices, further contributing to the success of ethanol consumption in the country.
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Environmental impact of ethanol
Brazil has been a leader in the sustainable use of bioethanol since the late 1920s and early 1930s, when ethanol fuel was first used in the country. Ethanol is obtained as a by-product of sugar mills producing sugar, and can be processed to produce fuel.
Ethanol is a renewable fuel that has a proven track record of cutting greenhouse gas (GHG) emissions from transportation. It is biodegradable, non-toxic, water-soluble, and quickly biodegradable. It reduces carbon dioxide (CO2) emissions by 30-50%Department of Energy's Argonne National Laboratory, grain-based ethanol cuts GHG emissions by 44-52% compared to gasoline.
Ethanol also reduces tailpipe emissions, which are harmful to human health. Testing of 20 vehicles by the University of California, Riverside, in 2022 found that replacing E10 with E15 provides emissions benefits. In addition, ethanol's ability to replace toxic aromatic compounds in gasoline means that ethanol-blended fuels present a lower risk to human health than regular gasoline.
However, one paper found that the expansion of biofuel plantations in Brazil will have a small direct land-use impact on carbon emissions, but that indirect land-use changes could offset the carbon savings from biofuels due to the expansion of the rangeland frontier into the Amazonian forests.
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Ethanol's effect on the economy
Ethanol has had a significant impact on Brazil's economy, with the country becoming a world leader in the sustainable use of bioethanol and a policy model for other developing countries. The Brazilian government began promoting bioethanol as a fuel in response to the 1973 oil crisis, aiming to reduce dependence on fossil fuels. The National Alcohol Program, known as Pró-Álcool, was launched in 1975 to encourage the use of ethanol produced from sugarcane. This decision was influenced by the low cost of sugar, the existing distillation capacity at sugar plants, and Brazil's experience with sugarcane cultivation, which dates back to 1532.
The Pró-Álcool Program was successful, and by the late 1980s, ethanol retail sales surpassed 50% of the market share for gasoline-powered vehicles. This success was short-lived, as cheap oil caused gasoline to regain dominance in the 1990s. However, the introduction of flexible-fuel vehicles (FFVs) in 2003 revived the use of ethanol. These FFVs can run on any blend of gasoline and hydrous ethanol, giving consumers the flexibility to choose the fuel based on market prices.
The rapid adoption of FFVs, along with the mandatory blend of alcohol with gasoline (E25 fuel), led to a significant increase in ethanol consumption. In 2008, ethanol retail sales once again surpassed the 50% market share for gasoline-powered vehicles. By 2012, flex-fuel cars and light commercial vehicles accounted for 87% of all passenger and light-duty vehicles sold in Brazil, with over 25 million units sold by 2015.
The success of ethanol in Brazil has had economic implications beyond the country. For example, in the state of Nebraska in the US, the ethanol sector is the third-largest agricultural industry, contributing $3.8 billion in total output and providing 4,632 jobs in 2019. However, there are concerns about the environmental impact of ethanol production, particularly its contribution to greenhouse gas emissions and land-use changes, which could offset the carbon savings from biofuels.
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Frequently asked questions
No. However, Brazil has gained extensive experience in developing ethanol fuel policies over the last 50 years. In 2012, flex-fuel cars and light trucks represented 87% of all passenger and light-duty vehicles sold in the country. By the end of 2014, flex-fuel cars represented 54% of the Brazilian registered stock of light-duty vehicles.
Flex-fuel vehicles can run on any proportion of gasoline and hydrous ethanol.
Flex vehicles were introduced to the Brazilian market in 2003.
The percentage of ethanol in Brazilian gasoline is set annually, varying between 20 and 25% depending on each year's sugar crop yield.
Ethanol fuel is a sustainable biofuel that can be produced from sugar cane, reducing Brazil's dependence on imported oil.
