報告書番号

Y10015

タイトル（和文）

地域性を考慮した日本のエネルギー需給分析モデル（J-REM）の開発

タイトル（英文）

Development of the Regional Energy Model of Japan (J-REM) Considering the Regional Difference in Energy Usage

概要 （図表や脚注は「報告書全文」に掲載しております）

日本を気候区分、人口密度、都市ガス供給区域などの地域特性に応じてを7つに分割した「地域別日本エネルギーモデル」（J-REM）を開発した。そして、2050年にかけて大幅にCO2排出量を削減する場合についてモデルランを行った結果、人口密度が低く、自動車1台当たりの平均走行距離が長い地域ほど次世代自動車の導入が早いこと、温暖な地域ほど家庭部門の給湯でヒートポンプ給湯器が活躍するなど、地域特性に応じた技術選択がなされることを明らかにした。

概要 （英文）

This study has developed the Regional Energy Model of Japan (J-REM) and showed the results of its test-run. Previously, we developed the Japanese Hydrogen Energy Model (J-HEM) and analyzed the cost and effectiveness of introducing innovative energy supply and utilizing technologies. However, it is necessary to develop another model which enables to reflect regional differences in energy usage to analyze the technology choice more precisely. The J-REM divides energy demand sectors of Japan into seven regions considering climate, population density, and availability of city gas infrastructure and energy demand and energy service demand in each region are estimated. The results of test-run shows two remarkable differences in regional technology choices will happen to decrease CO2 emission considerably towards 2050. One difference is that the introduction of next-generation cars is more rapid in the region where public transportation is not well-prepared and the dependence on automobiles is heavier. Another difference is that the heat-pump hot water heater in the residential sector will be used more actively where the climate is warmer. We will analyze the CO2 reduction more precisely by checking various presuppositions and revise the model including the changes in regional division.

報告者

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