NEDO recognizes that since power generating capacity of the renewable energy is affected by the weather and similar factors, it is necessary to significantly enhance power systems within the framework of conventional technology and systems. However, such efforts are not at all easy because they are expensive and securing the necessary land is time-consuming. Hence, the objective of this project is to maximize the utilization of existing grid systems by developing prediction and control systems for individual grid systems aimed at the achievement of non-firm connections* at an early stage. Another goal of the project is to develop optimal systems control technology in order to resolve various issues & mdash; including fluctuations in voltage and flow of power distribution systems & mdash; to work toward the establishment of distributed network systems. In this project, Non-firm connection would be utilized , which is a method that makes it possible to connect a new power source to the grid, subject to controlling its output, when the power grid is congested by other power sources in operation.