Factor X (eco-efficiency) assessment on global warming a household in Japan

Taeko Aoe, Ryoichi Yamamoto, Toshiharu Ikaga, Yasushi Kondo, Yuichi Matsuoka, Moriki Fukuda

    Research output: Contribution to journalArticle

    2 Citations (Scopus)

    Abstract

    This paper proposes a new method for evaluating the eco-efficiency of a household based on Factor X, which was proposed by Yamamoto and colleagues in 1999. We had proposed methods for evaluating Factor X of a household which consists of a building and home appliances, and implemented empirical evaluations. However, there remained the following two issues to be considered. One is how to quantify the function of a household. The other is how to take account of the so-called synergy effects. It proposes the method for calculating the overall functions of one household using the purchasing price as a weighting coefficient. This method is the same as Laspeyres quantity index in economics fields. As a synergy effect, the insulating effect in the building, etc. are considered. The result showed that the annual greenhouse gas emission of a typical household drastically decreased by 52.2% from 1990 to 2009 while the aggregated function of the household slightly decreased by 0.2% during the same period so that Factor X was 2.1 with respect to global warming. It was thus shown quantitatively that Factor X of households in Japan presumably improved during the period although only limited assessments were implemented.

    Original languageEnglish
    Pages (from-to)1070-1087
    Number of pages18
    JournalNihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy
    Volume89
    Issue number11
    DOIs
    Publication statusPublished - 2010

    Fingerprint

    Global warming
    Domestic appliances
    Purchasing
    Gas emissions
    Greenhouse gases
    Economics

    Keywords

    • Eco-efficiency
    • Factor X
    • Global warming
    • Household

    ASJC Scopus subject areas

    • Energy(all)

    Cite this

    Factor X (eco-efficiency) assessment on global warming a household in Japan. / Aoe, Taeko; Yamamoto, Ryoichi; Ikaga, Toshiharu; Kondo, Yasushi; Matsuoka, Yuichi; Fukuda, Moriki.

    In: Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy, Vol. 89, No. 11, 2010, p. 1070-1087.

    Research output: Contribution to journalArticle

    Aoe, Taeko ; Yamamoto, Ryoichi ; Ikaga, Toshiharu ; Kondo, Yasushi ; Matsuoka, Yuichi ; Fukuda, Moriki. / Factor X (eco-efficiency) assessment on global warming a household in Japan. In: Nihon Enerugi Gakkaishi/Journal of the Japan Institute of Energy. 2010 ; Vol. 89, No. 11. pp. 1070-1087.
    @article{17ce567a8a0041358844cd24631fe17c,
    title = "Factor X (eco-efficiency) assessment on global warming a household in Japan",
    abstract = "This paper proposes a new method for evaluating the eco-efficiency of a household based on Factor X, which was proposed by Yamamoto and colleagues in 1999. We had proposed methods for evaluating Factor X of a household which consists of a building and home appliances, and implemented empirical evaluations. However, there remained the following two issues to be considered. One is how to quantify the function of a household. The other is how to take account of the so-called synergy effects. It proposes the method for calculating the overall functions of one household using the purchasing price as a weighting coefficient. This method is the same as Laspeyres quantity index in economics fields. As a synergy effect, the insulating effect in the building, etc. are considered. The result showed that the annual greenhouse gas emission of a typical household drastically decreased by 52.2{\%} from 1990 to 2009 while the aggregated function of the household slightly decreased by 0.2{\%} during the same period so that Factor X was 2.1 with respect to global warming. It was thus shown quantitatively that Factor X of households in Japan presumably improved during the period although only limited assessments were implemented.",
    keywords = "Eco-efficiency, Factor X, Global warming, Household",
    author = "Taeko Aoe and Ryoichi Yamamoto and Toshiharu Ikaga and Yasushi Kondo and Yuichi Matsuoka and Moriki Fukuda",
    year = "2010",
    doi = "10.3775/jie.89.1070",
    language = "English",
    volume = "89",
    pages = "1070--1087",
    journal = "Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan",
    issn = "0916-8753",
    publisher = "Japan Institute Of Energy",
    number = "11",

    }

    TY - JOUR

    T1 - Factor X (eco-efficiency) assessment on global warming a household in Japan

    AU - Aoe, Taeko

    AU - Yamamoto, Ryoichi

    AU - Ikaga, Toshiharu

    AU - Kondo, Yasushi

    AU - Matsuoka, Yuichi

    AU - Fukuda, Moriki

    PY - 2010

    Y1 - 2010

    N2 - This paper proposes a new method for evaluating the eco-efficiency of a household based on Factor X, which was proposed by Yamamoto and colleagues in 1999. We had proposed methods for evaluating Factor X of a household which consists of a building and home appliances, and implemented empirical evaluations. However, there remained the following two issues to be considered. One is how to quantify the function of a household. The other is how to take account of the so-called synergy effects. It proposes the method for calculating the overall functions of one household using the purchasing price as a weighting coefficient. This method is the same as Laspeyres quantity index in economics fields. As a synergy effect, the insulating effect in the building, etc. are considered. The result showed that the annual greenhouse gas emission of a typical household drastically decreased by 52.2% from 1990 to 2009 while the aggregated function of the household slightly decreased by 0.2% during the same period so that Factor X was 2.1 with respect to global warming. It was thus shown quantitatively that Factor X of households in Japan presumably improved during the period although only limited assessments were implemented.

    AB - This paper proposes a new method for evaluating the eco-efficiency of a household based on Factor X, which was proposed by Yamamoto and colleagues in 1999. We had proposed methods for evaluating Factor X of a household which consists of a building and home appliances, and implemented empirical evaluations. However, there remained the following two issues to be considered. One is how to quantify the function of a household. The other is how to take account of the so-called synergy effects. It proposes the method for calculating the overall functions of one household using the purchasing price as a weighting coefficient. This method is the same as Laspeyres quantity index in economics fields. As a synergy effect, the insulating effect in the building, etc. are considered. The result showed that the annual greenhouse gas emission of a typical household drastically decreased by 52.2% from 1990 to 2009 while the aggregated function of the household slightly decreased by 0.2% during the same period so that Factor X was 2.1 with respect to global warming. It was thus shown quantitatively that Factor X of households in Japan presumably improved during the period although only limited assessments were implemented.

    KW - Eco-efficiency

    KW - Factor X

    KW - Global warming

    KW - Household

    UR - http://www.scopus.com/inward/record.url?scp=79951648060&partnerID=8YFLogxK

    UR - http://www.scopus.com/inward/citedby.url?scp=79951648060&partnerID=8YFLogxK

    U2 - 10.3775/jie.89.1070

    DO - 10.3775/jie.89.1070

    M3 - Article

    VL - 89

    SP - 1070

    EP - 1087

    JO - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan

    JF - Nenryo Kyokai-Shi/Journal of the Fuel Society of Japan

    SN - 0916-8753

    IS - 11

    ER -