In order to utilize wasted heat energy in urban areas, it is important to design DHC supply system which meets the characteristics of demand sectors. The authors attempt to show urban infrastructure systems to improve energy consumption efficiency in urban areas. Based on a survey for energy characteristics of the Kansai Region, seven sub-systems are presented which reduce urban activity lords from urban activities for the regional environment as well as for the global one. First, the authors show seven urban energy infrastructure patterns to realize efficient energy consumption from different sources, after identifying energy consumption flow of the region. Followingly characteristics of those systems are compared. Finally the authors made preliminary analysis for the implementation of environmental infrastructure system in districts neighboring power generation plan