Abstract
This paper investigates the impact of change in household-type on residential electricity demand due to population aging in Japan considering the change in dwelling-type. For the purpose, existing forecasting method for number of household by dwelling-type is modified by segmentalizing the age class. A simulation demonstrates that the change in household-type during 2010-2030 would decrease the average residential electricity demand per household in 2030 by 0.9%. Moreover, considering the change in dwelling-type, the unit demand per household would decrease by 2.4% in Japan, which is distributed among 0.7% (Tokyo Metropolitan Area)~2.8% (Tohoku, Hokuriku). The simulation demonstrates that the impact of change in household-type is enhanced by considering the change in dwelling-type.
