ABSTRACT
Using data on household energy consumption and population estimates for Japan, this study examines how population aging affects household energy consumption and how to achieve sustainable household energy use in the future. First, we examine five factors that may affect the relationship between aging and household energy consumption. Then, we classify households into six types and project residential energy consumption from 2020 to 2040. In addition, two simulations are conducted to explore potential energy savings over this period. These simulations will analyze total residential energy consumption in Japan by household type and residential energy consumption per capita by household type. We will also explore Jevons’ paradox and discuss important factors such as changes in consumer behavior, the promotion of conservation, and the significant increase in electricity demand associated with the global expansion of Information and Communication Technology (ICT) systems. Finally, several closing points will be made for household energy conservation measures in an aging society.
