2020 Volume 41 Issue 2 Pages 38-50
Energy Transition from fossil fuel to renewable energy proceeds in the world. During the energy transition period, existing infrastructure of each district will be considerable restrictions toward the 100% renewable energy society, and replacement strategies of the existing infrastructure will affect the power supply and energy storage system. This paper examines impacts on the future power supply and energy storage system under different strategies of existing power plant replacement in 2020, 2030, 2040 and 2050 in Western Japan for large scale introduction of renewable energy by minimizing total cost with linear planning. The results indicated that when large scale renewable energy was introduced, (1) total cost was minimized in the case of thermal power plant replacement scenario was selected, (2) type of introduced renewable energy was different depends on area, (3) hydrogen was generated as energy storage in the area with high renewable energy potential and transferred to the area with low potential in 2040 and 2050 in the thermal power plant replacement scenario.
