Agradecimentos: The first author would like to acknowledge "Fundo de Apoio ao Ensino, à Pesquisa e à Extensão", FAEPEX. The second Author would like to acknowledge the Brazilian National Council of Scientific and Technological Development, CNPq grant No. 306033/2012-7. The third Author would like to...

Agradecimentos: The first author would like to acknowledge "Fundo de Apoio ao Ensino, à Pesquisa e à Extensão", FAEPEX. The second Author would like to acknowledge the Brazilian National Council of Scientific and Technological Development, CNPq grant No. 306033/2012-7. The third Author would like to acknowledge São Paulo Research Foundation, FAPESP grant No. 2015/22883-7

Exergy analysis was applied to the state of São Paulo, Brazil, and exergy efficiencies were obtained for its constituent sectors, the Industrial, Rural, Commercial & Public, Residential and Transportation, from most to least efficient. Overall exergy efficiency was found to be 28.3%, a value which...

Exergy analysis was applied to the state of São Paulo, Brazil, and exergy efficiencies were obtained for its constituent sectors, the Industrial, Rural, Commercial & Public, Residential and Transportation, from most to least efficient. Overall exergy efficiency was found to be 28.3%, a value which lies within the range of similar studies. To indicate the usefulness of the exergy approach, some measures were tested based on exergy efficiency values. LED lamps to improve sectorial exergy efficiencies by lowering consumption, but the overall impact is low. Solar water heaters can mitigate the mismatch in quality between supply and demand, in the Residential sector, by harnessing power from an inexhaustible renewable source. For the Transportation sector, with technological constraints regarding similar internal combustion engine efficiencies, improvements were tested on a total carbon dioxide equivalent emission. Gasoline substitution for ethanol was the better option, and fleet electrification produced a wide range of results due to battery production and variability in emission factors from the Utility sector

CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQ

306033/2012-7

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