Diverse Lifestyles and Energy Comsumption of Single-Person Household

Takaguchi, Hiroto; Hirose, Takuya; Ozaki, Akihito

doi:10.3130/aijt.14.521

Cited by 6 publications

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“…On the other hand, there is some previous research conducted by questionnaire worth mentioning. Takaguchi et al (2008) carried out questionnaires on lifestyle and energy consumption of 858 one-person households in Tokyo and the whole country were surveyed, mostly on the internet, but only 41 responses yielded valid answers on annual energy consumption. Fukuyo (2008Fukuyo ( , 2009 carried out a questionnaire on the consciousness of lifestyle and energyconsuming actions in one-person households twice.…”

Section: Introductionmentioning

confidence: 99%

Factor Analysis Focusing on Lifestyle Factors of Utility Costs for One-person Student Households in Tohoku Region of Japan before the Great East Japan Earthquake

Genjo

2020

JHES

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A questionnaire survey on both the lifestyle and energy consumption of 626 university students in Tohoku region was conducted in 2007 and 2008 to assess energy conservation behaviors and energy consumption in one-person student households. This study aims to clarify the influence of each lifestyle factor that would affect the energy consumption of one-person student households. Of the 626 respondents, 344 one-person households and 215 family households were analyzed via the method of quantification theory type I, as the explanatory variables were roughly divided into hard and soft factors. In this study, the hard factors are considered to be the age of the building, the space heating and cooling period, the set point temperature of space heating appliances, heat source of hot water supply, and the set point temperature of hot water in winter. The soft factors are considered to be the degree of action of the energy conservation behavior in the house, consciousness of global environmental issues, consideration for energy conservation in daily life, and the degree of energy conservation efforts. The following conclusions of this study were obtained: 1) It was found that the heat source of hot water supply and set point temperature of hot water supply in winter were important factors that have a great impact on the annual utility costs among the six hard factors used in the analysis in one-person student households and family households, respectively. 2) Space cooling period had clear association with the annual utility costs in one-person households, whereas space heating period had clear association with the annual utility costs in family households. 3) The annual utility cost of one-person student households was greatly influenced by how to use appliances and energy conservation efforts. 4) The tendency of the partial correlation coefficients of soft factors to be higher in family households than those of hard factors was stronger than that of one-person households. 5) Differences in energy conservation efforts and consciousness of global environmental issues among family households were greatly reflected in annual utility costs compared to one-person households. 6) The effect of the degree of action of energy conservation behavior in the house on the annual utility costs was found to be greater or comparable to that of the hard factors including how to use equipment in both one-person households and family households. 7) It was shown that the correlation with the annual utility costs is higher when considering not only hard factors but also soft factors in both one-person households and family households. 8) It is important not only to save energy, but also to confirm that the indoor thermal comfort is secured in one-person households. Since the number of one-person households is expected to increase in the future in Japan, the findings of this study are expected to be useful to promote energy conservation nationwide by developing energyconservation techniques for one-person households. At the same time, energy c...

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Section: Introductionmentioning

confidence: 99%

Factor Analysis Focusing on Lifestyle Factors of Utility Costs for One-person Student Households in Tohoku Region of Japan before the Great East Japan Earthquake

Genjo

2020

JHES

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Lifestyle and Energy Consumption of Student One-Person Households in Tohoku Area

Genjo¹,

Matsumoto²,

Hasegawa³

et al. 2012

Nihon Kenchiku Gakkai Kankyokei Ronbunshu

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A Study on Energy Consumption in Detached Houses With Energy-Efficient Water Heaters Based on Web Questionnaire

Tomiyama

Satoh²,

Nakajima

et al. 2015

Nihon Kenchiku Gakkai Kankyokei Ronbunshu

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The purpose of this study is to clarify the effects of housing appliances such as energy-efficient water heaters and co-generation system and diversifying family composition and bathing habits on Energy Consumption especially hot water usage which is dominant in Japanese households. We conducted a web questionnaire survey to the dwellers of detached houses in temperate and cold climate. First, we analyzed the household characteristics and kinds of heating appliances they use based on the type of water heaters they use then compared the amount of energy they consume. Secondly, by focusing on the age of householders as an indicator of households' life stage, we found that the older the householders get, the more annual income they get, the older house they live and the more energy they consume. Finally, we quantified the effects of the life stage and bathing habits on the hot water energy consumption by conducting a multiple regression analysis and found that men in their 40s and women in their 20s, 60s and older consume much hot water energy. ＊東京大学大学院工学系研究科建築学専攻修士課程＊＊佐藤エネルギーリサーチ博士 (工学) ＊＊＊元東京大学大学院工学系研究科建築学専攻修士課程・修士 (工学) ＊＊＊＊東京大学大学院工学系研究科建築学専攻准教授・博士 (工学) Grad. Stud.,

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Diverse Lifestyles and Energy Comsumption of Single-Person Household

Cited by 6 publications

References 0 publications

Factor Analysis Focusing on Lifestyle Factors of Utility Costs for One-person Student Households in Tohoku Region of Japan before the Great East Japan Earthquake

Factor Analysis Focusing on Lifestyle Factors of Utility Costs for One-person Student Households in Tohoku Region of Japan before the Great East Japan Earthquake

Lifestyle and Energy Consumption of Student One-Person Households in Tohoku Area

A Study on Energy Consumption in Detached Houses With Energy-Efficient Water Heaters Based on Web Questionnaire

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