抄録
After installing a photovoltaic (PV) system in a house or a school, it is said that people seem to increase environmental
behavior such as electricity-saving. Do characteristics of PV systems have any influence on the change in people’s
environmental behavior? This study attempts to discover why people’s behavior toward energy and the environment change
after installing PV system in houses. Based on questionnaire surveys, this paper describes the results of statistical analysis
concerning the changes in households with PV systems installed. The results show that, in households where the family
members are highly aware of their PV systems, they tend to increase environmental behavior after installing the PV system.
Moreover, it is found that the increase in the communication about environmental behavior in a family tends to go hand in
hand with the increase in environmental behavior. The findings suggest that the installation of residential PV systems affect
people's concern and norms related to energy and the environment, and then change people's behavior.
