Estimating exergy prices for energy carriers in heating systems

Country analyses of exergy substitution with capital expenditures

Andreas Müller (Corresponding Author), Lukas Kranzl, Pekka Tuominen, Elisa Boelman, Marco Molinari, Bram Entrop

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)

Abstract

Exergy represents the ability of an energy carrier to perform work and can be seen as a core indicator for measuring its quality. In this article we postulate that energy prices reflect the exergy content of the underlying energy carrier and that capital expenditures can substitute for exergy to some degree.

We draw our line of argumentation from cost and technology data for heating systems of four European countries: Austria, Finland, The Netherlands, and Sweden. Firstly, this paper shows that the overall consumer costs for different heating options, widely installed in those countries, are in the same range. In this analysis we derived an overall standard deviation of about 8%. Secondly, additional analysis demonstrates that the share of capital costs on total heating cost increases with lower exergy input. Based on the data used in this analysis, we conclude that for the case of modern cost effective heating systems the substitution rate between exergy and capital is in the vicinity of 2/3. This means that by reducing the average specific exergy input of the applied energy carriers by one unit, the share of capital costs on the total costs increases by 2/3 of a unit.
Original languageEnglish
Pages (from-to)3609-3617
Number of pages9
JournalEnergy and Buildings
Volume43
Issue number12
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

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Exergy
Substitution reactions
Heating
Costs

Keywords

  • Exergy
  • energy prices
  • buildings
  • heating

Cite this

Müller, Andreas ; Kranzl, Lukas ; Tuominen, Pekka ; Boelman, Elisa ; Molinari, Marco ; Entrop, Bram. / Estimating exergy prices for energy carriers in heating systems : Country analyses of exergy substitution with capital expenditures. In: Energy and Buildings. 2011 ; Vol. 43, No. 12. pp. 3609-3617.
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abstract = "Exergy represents the ability of an energy carrier to perform work and can be seen as a core indicator for measuring its quality. In this article we postulate that energy prices reflect the exergy content of the underlying energy carrier and that capital expenditures can substitute for exergy to some degree.We draw our line of argumentation from cost and technology data for heating systems of four European countries: Austria, Finland, The Netherlands, and Sweden. Firstly, this paper shows that the overall consumer costs for different heating options, widely installed in those countries, are in the same range. In this analysis we derived an overall standard deviation of about 8{\%}. Secondly, additional analysis demonstrates that the share of capital costs on total heating cost increases with lower exergy input. Based on the data used in this analysis, we conclude that for the case of modern cost effective heating systems the substitution rate between exergy and capital is in the vicinity of 2/3. This means that by reducing the average specific exergy input of the applied energy carriers by one unit, the share of capital costs on the total costs increases by 2/3 of a unit.",
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Estimating exergy prices for energy carriers in heating systems : Country analyses of exergy substitution with capital expenditures. / Müller, Andreas (Corresponding Author); Kranzl, Lukas; Tuominen, Pekka; Boelman, Elisa; Molinari, Marco; Entrop, Bram.

In: Energy and Buildings, Vol. 43, No. 12, 2011, p. 3609-3617.

Research output: Contribution to journalArticleScientificpeer-review

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T1 - Estimating exergy prices for energy carriers in heating systems

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AU - Müller, Andreas

AU - Kranzl, Lukas

AU - Tuominen, Pekka

AU - Boelman, Elisa

AU - Molinari, Marco

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AB - Exergy represents the ability of an energy carrier to perform work and can be seen as a core indicator for measuring its quality. In this article we postulate that energy prices reflect the exergy content of the underlying energy carrier and that capital expenditures can substitute for exergy to some degree.We draw our line of argumentation from cost and technology data for heating systems of four European countries: Austria, Finland, The Netherlands, and Sweden. Firstly, this paper shows that the overall consumer costs for different heating options, widely installed in those countries, are in the same range. In this analysis we derived an overall standard deviation of about 8%. Secondly, additional analysis demonstrates that the share of capital costs on total heating cost increases with lower exergy input. Based on the data used in this analysis, we conclude that for the case of modern cost effective heating systems the substitution rate between exergy and capital is in the vicinity of 2/3. This means that by reducing the average specific exergy input of the applied energy carriers by one unit, the share of capital costs on the total costs increases by 2/3 of a unit.

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