H101 炭酸ガス排出抑制と国内経済活性化のための日本の将来エネルギーシステム構成解析(OS11 温暖化対策とCO_2削減技術)

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  • H101 Analysis on Long-term Change of Energy System Structure in Japan for CO_2 Emission Reduction and Economic Revitalization

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Long-term change of energy system structure in Japan was analyzed to investigate the effect of CO_2 emission reduction level using MARKAL model. The MARKAL is composed of energy resources, energy supply technologies, energy ultimate demand technologies and energy service demands with them connected by energy carriers. This paper presents analyses investigating the CO_2 reduction cost and the energy structure change until 2050. Here, we focused on the domestic investment to reduce CO_2 emission. It was shown that the CO_2 reduction until 40% level promotes the energy conversion from coal to natural gas and it causes the increase in total cost of the imported fuel. The higher CO_2 reduction, however, increases the domestic investment for low-emission vehicles, photovoltaic power generation and so on, and decreases the outward investment, although the total CO_2 reduction cost is increased. This contributes to the revitalization of Japanese economy, together with the reduction of outward investment.

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