Grupo de Economia da Energia

Posts Tagged ‘energy planning’

Fukushima Nuclear Accident: a dilemma for the world energy planning

In nuclear energy on 11/04/2011 at 00:30

By Renato Queiroz

The accident in Fukushima Daiichi power plant, located about 250 km from Tokyo, and the classification of the French Nuclear Safety Authority (ASN) on the explosions occurred in the Japanese generation plant that reached the level 6 (serious accident), in an international scale for nuclear events until level 7 [*] engraved energy experts worldwide. That adds a strong element of uncertainty for the global nuclear industry.

The INES level (6) means serious accident, stating that there was release of radioactive material and as consequences the adoption of measures to protect the population in the affected area.  This reflects the world public opinion, causing major concerns and pressure against the generation of electricity through this source.

Shortly after the accident, some experts, under the impact of the tragic news and images in real time, agreed with the thesis that the revival of the nuclear industry was being aborted.  Perhaps the question not discussed is: Without using nuclear energy, how can we meet the increasing consumption of energy required by societies in the coming years in a context of reducing emissions of greenhouse gases? Continue lendo »

Flex-fuel vehicles: understanding the choice of fuel

In biofuels, ethanol on 21/03/2011 at 00:31

By Luciano Losekann and Gustavo Rabello de Castro(*)

As previous article, models that allow you to choice fuel, gasoline or ethanol, rule cars for sale in Brazil. Flex-fuel vehicles already represent 46% of the Brazilian light vehicle fleet, whose portion should rise continuously.

Thus, most car owners can choose the fuel they use at the time of fueling. Thus, the demand for gasoline and ethanol becomes more volatile. Although other factors influencing consumer choice, such as autonomy and environmental impact, the relative price of fuels is the predominant criterion of choice. Continue lendo »

Brazilian light vehicle fleet: expansion of flex-fuel and CNG

In biofuels, ethanol on 19/04/2010 at 02:02

By Luciano Losekann and Thais Vilela (*)

The Brazilian energy matrix is characterized by a significant ethanol and natural gas participation as automotive fuel alternative to oil byproducts. Having knowledge of the evolution and characteristic of the automotive fleet is a key step to estimate the fuel consumption and guide policies related to the replacement of oil byproducts as well as the mitigation of CO2 emissions.

However, since 1986, after cancellation of Single Automotive Tax, the estimates of the national fleet circulating in Brazil, made by various institutions, have very different results. DENATRAN, National Traffic Department, publishes data on the fleet by vehicle type and states from the registration data conducted in Detran (State Department of Transit).

Continue lendo »