In 2021, it is scheduled for the creation of the balancing capacity market that can procurement and trade more flexible adjustment power than before, and the detailed design of the system is currently underway. As the number of providers of adjustment power increases as a result of marketization and broadening of the area, not only the reduction of procurement costs but also transparency and fairness of procurement are expected. In this paper, we propose the method to analysis scenarios of the balancing market based on Unit Commitment (UC) that considers the range of adjustment power secured in the regulation capacity market and quantitatively evaluate the effect of the adjustment power on the UC.

With the increase in the amount of photovoltaic power generation (PV) introduced, measures to respond to PV output fluctuations by Vehicle to Grid (V2G), which connects storage batteries of electric vehicles (EV) to the power system, have been studied. Since the usage status of many car changes on weekdays and holidays, the effects of V2G may be evaluated more accurately by considering weekly operation in addition to daily operation. In this study, we will quantitatively evaluate the effects of considering EVs that can be used for the weekly operation of a power supply group, including hydropower plants, in case of a collection of public holidays on the Japanese calendar.