Comparative economic analysis between electricity and natural gas for water heating in the residential sector
DOI:
https://doi.org/10.6008/SPC2179-6858.2017.002.0019Keywords:
Water Heating, Electricity, Natural Gas, Energy Efficiency, Comparative Economic AnalysisAbstract
Until 1995, the Federal Government had a monopoly on exploration, production, refining and transportation of natural gas; each Brazilian state exercised with exclusivity the distribution of piped gas. With the flexibilization of this scenario through Constitutional Amendments 09/95 and 05/95, respectively, several companies started to act in the different possibilities of use of combustible gases, among them the heating of water for bath. Despite the increasing use of gas in the Brazilian energy matrix, electricity still dominates an infinitely larger share of the water heating market in the residential sector. However, the combustible gases constitute an alternative to the use of electric energy because it is a product of high added value, with energetic and environmental advantages. The large amount of electric energy used for bathing is the main motivation for this study, since it is a very noble energy to be used for burning in the process of heating water and gas heaters, will be approached in this study relevant items To the displacement of electric energy to bath considering its efficiencies throughout the chain. In this context, the present work presents comparative economic analyzes associated to the substitution of electricity by natural gas, that is, the technological substitution between electric shower and gas for heating water in the residential sector. Also, possible associated advantages and this substitution and energetic, as well as political and market strategies for transposition of barriers that block this eminently technological energetic substitution are analyzed.
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