e-fuelのエネルギーシステムへの導入とモビリティの電動化が二酸化炭素排出量に及ぼす影響

抄録

This study aims to examine the value of e-fuel (Electrofuels) in an energy system that includes e-fuel. In this paper, we particularly focus on verifying the contribution of e-fuel to decarbonization in the automotive sector. We conducted simulations for one year under 49 different conditions and proposed the optimal photovoltaic power generation capacity and e-fuel production patterns. The simulation results showed that there is a trade-off relationship between cost and CO₂ reduction in the most ideal condition and revealed the required money to reduce 1kg-CO₂. Additionally, we conducted simulations for the CO₂ emissions from automobiles over 20 years towards to the carbon neutrality under 6 scenarios, combining scenarios for the electrification of automobiles, an increase in photovoltaic power generation capacity, and the introduction of e-fuel. The results showed that by the introduction of e-fuel alongside the electrification of automobiles, a 14.9% reduction in CO₂ emissions from automobiles was achieved by 20 years. Over the 20-year period, a cumulative reduction of 4.2% in CO₂ emissions was revealed in this paper.