Posts Tagged ‘Brazil’

Historical background of Ethanol fuel in Brazil

Tuesday, July 1st, 2008

Since the second half of the 70′s, and as a result of the 1973 oil crisis, the Brazil government has been promoting ethanol as a fuel. By 1978 the first gasohol automobile was developed.

The Brazilian government provided three important initial drivers for the ethanol industry: guaranteed purchases by the state-owned oil company Petrobras, low-interest loans for agro-industrial ethanol firms, and fixed gasoline and ethanol prices where hydrous ethanol sold for 59% of the government-set gasoline price at the pump.

These pump-primers have made ethanol production competitive yet unsubsidized. In recent years, the Brazilian untaxed retail price of hydrous ethanol has been lower than that of gasoline per gallon. Approximately US$50 million has recently been allocated for research and projects focused on advancing the obtention of ethanol from sugarcane in São Paulo.

The Pró-Álcool or Programa Nacional do Álcool (National Alcohol Program) was a nation-wide program financed by the government to phase out all automobile fuels derived from fossil fuels (such as gasoline) in favour of ethanol. It began with the anhydrous alcohol to blend with the gasoline. This mixture has been used since then and is now done with 24% of alcohol and 76% gasoline (commonly known as gasohol).

The program successfully reduced by 10 million the number of cars running on gasoline in Brazil, thereby reducing the country’s dependence on oil imports. The decision to produce ethanol from fermented sugarcane was based on the low cost of sugar at the time. Other sources of fermentable carbohydrates were tested such as the manioc. Sales of alcohol-only cars tumbled after an alcohol shortage coupled with low gas prices in the late 1980s to early 1990s.

In May 2003 Volkswagen built for the first time a production flexible fuel car, the Gol 1.6 Total Flex. Chevrolet followed two months later with the Corsa 1.8 Flexpower, using an engine developed by a joint-venture with Fiat called PowerTrain. That year production of full flex-fuel reached 39.853 automobiles and 9.411 light commercial vehicles.

By 2005, popular manufacturers that build flexible fuel vehicles are Chevrolet, Fiat, Ford, Peugeot, Renault ,Volkswagen, Honda, Mitsubishi, Toyota and Citröen. Flexible fuel cars were 15,2% of the car sales in 2004, 38,6% in 2005, 59,7% for 2006 and 71.9% for 2007. By March 2008, the fleet of dual-fuel vehicles, including autos and light commercial vehicles, had reached 5 million.

Social Implications in Brazil of Food vs Fuel

Tuesday, July 1st, 2008

Sugarcane has an important social contribution to the poorest people in Brazil. Although it still improves little the life conditions of this segment of Brazilian society, especially in comparison to industrialized countries living standards, having a temporary work at sugarcane harvest fields is, for many, the only option to survive.
There has been a great amount of harvest automation though, especially in the richest and more mature sugarcane producers of São Paulo state, thus dismissing hundreds of labor workers in place of air-conditioned sugarcane harvesting trucks. As production sparks in other states in Brazil, mainly in the Northeast Region, where lack of job positions and social issues amount much further, to give incentives to coming sugarcane producers as long as they employ harvest workers instead of implementing less labor intensive and more modern techniques.
Some question the viability of biofuels like ethanol as total replacements for gasoline/crude oil. One concern is that sugarcane cultivation will displace other crops, thus causing food shortages. However, these concerns do not correspond to the current situation in Brazil. Despite having the world’s largest sugarcane crop, the 45,000 km² Brazil currently devotes to sugarcane production amount to only about one-half of one percent of its total land area of some 8.5 million km². In addition, the country has more unused potential cropland than any other nation.

Some commentators, like George Monbiot, fear that the marketplace will convert crops to fuel for the rich, while the poor starve and biofuels cause environmental problems. It is unclear how this would be different from the current situation, as most food crops are grown and exported to richer nations, and neglects the very real environmental problems that the burning of fossil fuels causes. The cultivation of sugarcane for energy production is only likely to increase as fossil fuels become increasingly scarce and more expensive.