Household consumption of electricity in Brazil between 1985 and 2013 |
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Affiliation: | 1. Department of Mechanical Engineering, Universidad de Chile, Beauchef 851, Santiago, Chile;2. LEPTEN – Laboratory of Energy Conversion Engineering and Energy Technology/Federal University of Santa Catarina (UFSC), Florianópolis, Brazil;1. Department of Mechanical and Manufacturing Engineering, Faculty of Technology, Duzce University, Duzce, Turkey;2. Department of Energy Systems Engineering, Faculty of Technology, Karabuk University, Karabuk, Turkey;1. Department of Civil, Construction and Environmental Eng., North Carolina State University, Raleigh, NC, 27695, USA;2. Department of Decision Sciences School of Business, North Carolina Central University, Durham, NC, 27707, USA |
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Abstract: | This article describes the electricity consumption in Brazilian residences between 1985 and 2013 through linear regressions. The explanatory variables considered were the number of households, effective consumption of families as a proxy for family income, and electricity tariff for households. To deal with the power generation crisis of 2001 we have introduced a dummy variable in the form of a step function. With such explanatory variables, we were able to account for the reduction of household electricity consumption caused by the policies conducted in 2001 and their permanent consequences. The regression presented coefficient of determination of 0.9892, and the several statistic tests conducted assured the existence of long-term relation between the electricity consumption in residences and the explanatory variables. The obtained elasticities for the household consumption of electricity with respect to number of residences, family income and residential tariff of electricity were 1.534±0.095, 0.189±0.049, and −0.230±0.060, respectively. These results allowed understanding the evolution over time of the household consumption of electricity in Brazil. They suggest that the electric sector in Brazil should pursue an active policy to manage demand of residential electricity using tariffs as a means to control it. |
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Keywords: | Residential electricity consumption Brazil Household income Electricity tariff Number of households Households appliances |
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