Factors Affecting Installation of Residential Photovoltaics in Housing Estates in Kakegawa City, Shizuoka: Focusing on Housing and Surrounding Environment Characteristics

This study identifies the factors affecting the installation of residential solar photovoltaics (PVs) in housing estates in Kakegawa City, Shizuoka Prefecture. Logistic regression analysis of 1327 houses in housing estates revealed that those that were lower, fully rebuilts, newly builts, or larger as well as newly built were more likely to have PV installed. Furthermore, analysis of 1971 houses revealed that—compared to houses in adjacent blocks—those that were without building agreements, lower, fully rebuilt, newly built, or smaller as well as newly built were more likely to have PV installed. Accordingly, full rebuilds, new builds, building heights (measured in meters), and property areas (measured in square meters) were suggested as factors affecting PV installation.