Attribution analyses of family area and of household energy use and its future prediction

Abstract

In this study, we estimate residential energy consumption by region and by attribute, using tabulated data from the family income and expenditure survey by the Ministry of Internal Affairs and Communications and computational statistical methods. This study especially paid attention to aging in the single-person household and the senior citizen home, because the ratio of the single-person household in Japan and the ratio of the senior citizen home both reach 30%. The existence of the single-person household and the senior citizen home has an enormous influence on the decision of energy consumption in the home section now. However, these problems of household energy consumption were hardly examined in a current sturdy. As a result of this study, we clarified the energy consumption of a household including the single-person in Japan as 39.1 GJ/house/year. Moreover, the energy consumption of senior citizen in the single-person household is 35% more than that of the young and middle aged persons. However, there was little difference by age in the married couple home. Finally, we forecast that the energy consumed will decrease to 38.0 GJ/house/year in 2025 because of an increase in the single-person household and the aging of the citizens. However, the energy consumed by one person will increase by.