In recent years, the energy consumption patterns on the consumer (user) side have changed rapidly, such as the spread of distributed power sources such as solar power generation and demand control including demand response.Therefore, the evaluation and examination of energy supply infrastructure and energy management system in which the supply side and the consumer cooperate with each other are emphasized.

　Until now, each research institute used its own distribution system model to evaluate the development technology, but since the amount of information on the equipment in each distribution system is scarce and the applications are limited, it is highly versatile based on actual data. The construction and release of the system model was awaited.

　This time, the research group was based on the actual distribution line information of TEPCO Power Grid, Chubu Electric Power, and Kansai Electric Power.We have succeeded in constructing a distribution system model that can be used as a simulation of the actual area by estimating the building usage and power consumption curve of each consumer from the power consumption data measured in general households, convenience stores, buildings, etc.In addition, by adding geographic information to the distribution system, it is possible to analyze changes in solar radiation information due to the movement of clouds and the movement of electric vehicles, which are power loads, and to solve the problems associated with photovoltaic power generation, etc. spatiotemporally.・ It has become possible to perform multifaceted analysis.

　The model constructed this time serves as a general-purpose computational simulation platform for quantitatively evaluating energy management systems.By disclosing this model both domestically and internationally, each research institution will be able to perform city-scale simulations that match the actual conditions of consumers under the same conditions.