Reduction Potential for CO2 Emissions by Urban Structure Changes and Introduction of Photovoltaic Power Generation in Buildings and Unused Area in Nagoya City

Abstract

In order to mitigate global warming, there is a trend to promote a “low-carbon society” in cities. In recent years, the Japanese government has set up a program called the “Eco-Model Cities” program. The dissemination of generated photovoltaic (PV) power is seen as one of the measures for obtaining a lowcarbon society. This study estimated the reduction potential for CO2 emissions in Nagoya city under several scenarios. These scenarios involved urban structure changes, changes in the three-dimensional structures of buildings, the placement of buildings, the amount of unused area resulting from the placement of the buildings, and the installation of PV systems on building roofs and in unused areas. The results of this study could assist in realizing a low-carbon society, by examining the future urban structure, effective use of unused areas, and possibility of installing PV systems.