Analysis of Production and Storage of Secondary Energy Derived from Renewable Energy (2)

Abstract

This paper aims to study how secondary energy and supply-demand of entire energy system should be towards 2050 and beyond where renewable energy plays a major role as energy sources. In various future scenarios, using mathematical models for supply-demand analysis of electric power and hydrogen, we assume generation of surplus electricity, operation of power storage, hydrogen production and storage equipment. We also conduct an assumption, economic analysis and optimization of capital and operation costs. The result indicates that “hydrogen system comprised of hydrogen production, storage” and “renewable energy for power generation” have mutually supportive relationship with each other and it is possible that their massive, integrated and coordinated introduction is one of desirable forms of energy system to realize decarbonization in an economically feasible manner.