日本の2050年カーボンニュートラルに向けたエネルギー構成：再生可能エネルギー100%の電力供給の限界費用分析

DOI
  • 大槻 貴司
    横浜国立大学大学院工学研究院知的構造の創生部門 一般財団法人日本エネルギー経済研究所
  • 尾羽 秀晃
    一般財団法人日本エネルギー経済研究所
  • 松尾 雄司
    立命館アジア太平洋大学サステイナビリティ観光学部 一般財団法人日本エネルギー経済研究所
  • 森本 壮一
    一般財団法人日本エネルギー経済研究所

書誌事項

タイトル別名
  • Energy Mix for Japan’s Carbon Neutrality by 2050: Analysis of Marginal Cost of an Electricity Supply Based on 100% Renewable Energy

抄録

The authors’ previous assessment indicated that the marginal electricity cost in 2050 in Japan is more than doubled in an energy system based on a 100% renewable power supply compared to the cost-optimal system. However, some assumptions may be conservative given the recent developments, including the cost of variable renewable energy (VRE) and energy storage technologies and the availability of dispatchable renewable power generation (such as biomass-fired). Therefore, to test the robustness of the previous assessment, this study conducts a sensitivity analysis with a focus on these factors, using an energy system optimization model with a detailed temporal resolution. Simulation results imply that the high marginal electricity cost in the “100% renewable power system” is partially due to the costs of managing VRE’s seasonality. Low-cost energy storage and dispatchable renewable power plants can curb the marginal electricity cost. However, the results also suggest that the marginal cost in these sensitivity cases remains high compared to the cost-optimal system, still posing economic challenges to the system based on a 100% renewable power supply.

収録刊行物

キーワード

詳細情報 詳細情報について

  • CRID
    1390858994366844800
  • DOI
    10.24778/jjser.44.3_115
  • ISSN
    24330531
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
  • 抄録ライセンスフラグ
    使用不可

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