Abstract

In conventional power systems, large power sources such as thermal, hydro, and nuclear power plants supply the vast majority of the electricity. However, in future power systems, the installed capacities of renewable energy sources such as wind power and photovoltaic generation (PV) systems will increase, and these sources will supply a large volume of electricity. The potentially frequent occurrence of supply-demand imbalances in future power systems is a concern. Therefore, coordinated operation with supply-demand balancing between large power sources and renewable energy sources is necessary. In this study, we focus on operation with supply-demand balancing and PV generation, considering both economic efficiency and reliability. We evaluate the impact of import fuel price transitions on supply and demand in a future power system (for the assumed period of 2030−2050) in which a large PV generation source is installed. We conducted numerical simulations on a bulk power system model. We consider both the import fuel price and PV-generation installed capacity as parameters.

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