The paper made and studied simulation models in case of introducing new energy of composite type to cities. In the study, using a standard composition unit of city as a cluster, the compositional element was divided into 25 cells, which were divided into the residence superiority cell and the business superiority cell. The residence superiority cell was divided into highrise and lowrise. The calculation program is to simulate effects of introducing new energy such as the photovoltaic power generation, solar energy utilization, waste power generation, cogeneration, and unused energy like river water and waste water. Using the program, the analysis of sensitivity was conducted concerning how the outputs will change according to differences in energy consuming composition in the urban area. The calculation was conducted concerning local cities of the warm area, local cities of the cold area, local cities of the subtropical area, residence/working-place neighboring core cities in the warm area, central areas of large cities of the warm area, and new towns of the warm area. 28 figs., 27 tabs.