The need for robust, consistent methods in societal exergy accounting

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The need for robust, consistent methods in societal exergy accounting. / Sousa, Tânia; Brockway, Paul; Cullen, Jonathan M.; Henriques, Sofia; Miller, Jack ; Serrenho, Andre Cabrera; Domingos, Tiago.

In: Ecological Economics, Vol. 141, 11.2017, p. 11-21.

Research output: Contribution to journalArticle

Harvard

Sousa, T, Brockway, P, Cullen, JM, Henriques, S, Miller, J, Serrenho, AC & Domingos, T 2017, 'The need for robust, consistent methods in societal exergy accounting', Ecological Economics, vol. 141, pp. 11-21. https://doi.org/10.1016/j.ecolecon.2017.05.020

APA

Sousa, T., Brockway, P., Cullen, J. M., Henriques, S., Miller, J., Serrenho, A. C., & Domingos, T. (2017). The need for robust, consistent methods in societal exergy accounting. Ecological Economics, 141, 11-21. https://doi.org/10.1016/j.ecolecon.2017.05.020

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MLA

Vancouver

Author

Sousa, Tânia ; Brockway, Paul ; Cullen, Jonathan M. ; Henriques, Sofia ; Miller, Jack ; Serrenho, Andre Cabrera ; Domingos, Tiago. / The need for robust, consistent methods in societal exergy accounting. In: Ecological Economics. 2017 ; Vol. 141. pp. 11-21.

RIS

TY - JOUR

T1 - The need for robust, consistent methods in societal exergy accounting

AU - Sousa, Tânia

AU - Brockway, Paul

AU - Cullen, Jonathan M.

AU - Henriques, Sofia

AU - Miller, Jack

AU - Serrenho, Andre Cabrera

AU - Domingos, Tiago

PY - 2017/11

Y1 - 2017/11

N2 - Studies of societal exergy use have the common aim of tracing the flow of exergy along society, and are used to gain insights into the efficiency of energy use and linkages to economic growth. However, their methodological approaches vary greatly, with significant impacts on results. Therefore, we make a review of past studies to identify, synthesize and discuss methodological differences, to contribute to a more consistent and robust approach to societal exergy accounting. Issues that should be taken into account when making methodological options are discussed and key insights are presented: (1) For mapping of primary inputs and useful exergy categories, the inclusion of all natural resources is more consistent but it has the cost of not being able to distinguish the various energy end-uses in the production of materials. (2) To estimate primary electricity, none of the methods currently used is able to capture simultaneously the efficiency of the renewable energy sector, the environmental impact and the efficiency of energy use in society. (3) To estimate final-to-useful exergy conversion efficiencies, standard thermodynamic definitions should be used because the use of proxies fails to distinguish between increases in exergy efficiency and increases in the efficiency of providing energy services.

AB - Studies of societal exergy use have the common aim of tracing the flow of exergy along society, and are used to gain insights into the efficiency of energy use and linkages to economic growth. However, their methodological approaches vary greatly, with significant impacts on results. Therefore, we make a review of past studies to identify, synthesize and discuss methodological differences, to contribute to a more consistent and robust approach to societal exergy accounting. Issues that should be taken into account when making methodological options are discussed and key insights are presented: (1) For mapping of primary inputs and useful exergy categories, the inclusion of all natural resources is more consistent but it has the cost of not being able to distinguish the various energy end-uses in the production of materials. (2) To estimate primary electricity, none of the methods currently used is able to capture simultaneously the efficiency of the renewable energy sector, the environmental impact and the efficiency of energy use in society. (3) To estimate final-to-useful exergy conversion efficiencies, standard thermodynamic definitions should be used because the use of proxies fails to distinguish between increases in exergy efficiency and increases in the efficiency of providing energy services.

KW - energy efficiency

KW - exergy accounting

KW - energy end-uses

KW - societal exergy metabolism

U2 - 10.1016/j.ecolecon.2017.05.020

DO - 10.1016/j.ecolecon.2017.05.020

M3 - Article

VL - 141

SP - 11

EP - 21

JO - Ecological Economics

JF - Ecological Economics

SN - 0921-8009

ER -