Geothermal power generation is one of the renewable energies that can contribute to realizing a low-carbon society in Japan, as it is one of the most abundant energy resources in the world. In order to create favorable regions for the utilization of geothermal power generation, it is necessary to identify the characteristics of geothermal power generation facilities. This paper aims to identify the characteristics of geothermal power generation facilities and their location environment in Japan through statistical analysis. The main findings are as follows. (1) Most of the medium and large geothermal power generation facilities (installed capacity: 2000 kW or more) are operated by electric power companies that started operation between 1965 and 2004. They are mainly of the single or double flash generation types. Small (installed capacity: less than 2000 kW) geothermal power generation facilities are often operated by renewable energy companies that started operation in 2005 or later. They are mainly of the binary cycle generation type. (2) Medium and large geothermal power generation facilities are often located in natural park areas, relatively far from Densely Inhabited Districts. Small geothermal power generation facilities are often located in urban areas, with relatively high population or population and accommodation facilities densities.
