• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Technological and socio-economic feasibility assessment of the global net-zero CO2 emission goal

Research Project

Project/Area Number 20K14860
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 22060:Environmental systems for civil engineering-related
Research InstitutionKyoto University

Principal Investigator

Oshiro Ken  京都大学, 工学研究科, 助教 (00601569)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords気候変動緩和 / エネルギーシステム / 統合評価モデル / 脱炭素社会 / エネルギー政策 / パリ協定 / シナリオ分析
Outline of Research at the Start

パリ協定で示された気候変動緩和目標を達成するためには、今世紀中に温室効果ガスの大幅削減が必要となるが、その実現には様々な技術・経済・社会的な制約が存在する。本研究ではこれらの諸制約を踏まえ、パリ協定気候目標より示唆される世界CO2ゼロ排出がどれくらい早期に実現できるかを明らかにする。そのため、世界全域を対象に、個別技術の普及スピードを考慮した上で、エネルギー対策導入量やCO2排出量を推計するシミュレーションモデルを開発する。さらに、諸制約を除去するための追加政策の効果を定量的に評価し、CO2ゼロ排出を早期に実現するために必要となる方策を明らかにする。

Outline of Final Research Achievements

We developed a global energy system model and assessed global net-zero emissions scenarios by 2050. The model represented several energy technologies in both energy and demand sectors, and innovative technologies such as hydrogen and direct air capture. The results indicated that share of hydrogen energy carriers can reach around 15% of global energy demand by 2050 in case diffusion of biomass and carbon capture and storage (CCS) is constrained. In addition, when electrification in energy demand sector is limited, synthetic hydrocarbons can be an alternative mitigation option. Meanwhile, the importance of holistic policy design including other mitigation options are highlighted, as hydrogen- and synthetic hydrocarbon-based energy systems associate increased mitigation costs.

Academic Significance and Societal Importance of the Research Achievements

2022年に公表されたIPCC第6次評価報告書では、世界ネットゼロ排出を達成する例示的なシナリオが複数示された。これらは主に負の排出削減や急速なエネルギー需要削減・電化などを伴うものであったが、本研究ではこれらの対策に依存しない、炭素回収利用(CCU)を活用するシナリオを世界で初めて提示した。これは学術的な新規性に加え、今後のIPCC報告書への示唆においても有益である。また、各国や企業はネットゼロ排出の達成に向けた方策の検討を進めており、比較的設備が固定化(ロックイン)しやすい途上国などにおいて、本研究で示したシナリオは選択肢の一つとなり得ることから、社会的意義も大きいと考えられる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (35 results)

All 2022 2021 2020 Other

All Journal Article (18 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 14 results,  Open Access: 9 results) Presentation (16 results) (of which Int'l Joint Research: 7 results) Remarks (1 results)

  • [Journal Article] Scenarios for removing residual emissions in the context of the mid-century net-zero emission goals in Japan2022

    • Author(s)
      大城賢、藤森真一郎
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 78 Issue: 5 Pages: I_429-I_439

    • DOI

      10.2208/jscejer.78.5_I_429

    • ISSN
      2185-6648
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] THE ROLE OF SYNTHETIC FUELS IN THE GLOBAL NET-ZERO EMISSIONS SCENARIOS2022

    • Author(s)
      MORI Shotaro、NISHIURA Osamu、OSHIRO Ken、FUJIMORI Shinichiro
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 78 Issue: 5 Pages: I_451-I_461

    • DOI

      10.2208/jscejer.78.5_I_451

    • ISSN
      2185-6648
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Job creation in response to Japan’s energy transition towards deep mitigation: An extension of partial equilibrium integrated assessment models2022

    • Author(s)
      Ju Yiyi、Sugiyama Masahiro、Kato Etsushi、Oshiro Ken、Wang Jiayang
    • Journal Title

      Applied Energy

      Volume: 318 Pages: 119178-119178

    • DOI

      10.1016/j.apenergy.2022.119178

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 世界を対象とした2050年ネットゼロ排出達成における合成燃料の役割2022

    • Author(s)
      森翔太郎、西浦理、大城賢、藤森真一郎
    • Journal Title

      環境衛生工学研究

      Volume: 36(3) Pages: 66-68

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Role of hydrogen-based energy carriers as an alternative option to reduce residual emissions associated with mid-century decarbonization goals2022

    • Author(s)
      Oshiro Ken、Fujimori Shinichiro
    • Journal Title

      Applied Energy

      Volume: 313 Pages: 118803-118803

    • DOI

      10.1016/j.apenergy.2022.118803

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Good practice policies to bridge the emissions gap in key countries2022

    • Author(s)
      Baptista Luiz Bernardo、Schaeffer Roberto、van Soest Heleen L.、Fragkos Panagiotis、Rochedo Pedro R.R.、van Vuuren Detlef、Dewi Retno Gumilang、Iyer Gokul、Jiang Kejun、Kannavou Maria、Macaluso Nick、Oshiro Ken、Park Chan、Reedman Luke J.、Safonov George、Shekhar Swapnil、Siagian Ucok、Surana Kavita、Qimin Chai
    • Journal Title

      Global Environmental Change

      Volume: 73 Pages: 102472-102472

    • DOI

      10.1016/j.gloenvcha.2022.102472

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The role of hydrogen-based energy carriers in the context of the decarbonization goals of the Paris Agreement2021

    • Author(s)
      大城賢、藤森真一郎
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 77 Issue: 5 Pages: I_197-I_207

    • DOI

      10.2208/jscejer.77.5_I_197

    • NAID

      130008132178

    • ISSN
      2185-6648
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] IMPACTS OF TECHNOLOGICAL AND SOCIAL TRANSFORMATIONS IN THE TRANSPORTATION SECTOR ON CLIMATE CHANGE POLICY2021

    • Author(s)
      松井そら、大城賢、藤森真一郎、西浦理
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 77 Issue: 5 Pages: I_275-I_283

    • DOI

      10.2208/jscejer.77.5_I_275

    • NAID

      130008132155

    • ISSN
      2185-6648
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] 交通部門の社会変革が気候変動政策へ及ぼす影響2021

    • Author(s)
      松井そら、藤森真一郎、大城賢、西浦理
    • Journal Title

      環境衛生工学研究

      Volume: 35(3) Pages: 124-126

    • Related Report
      2021 Research-status Report
  • [Journal Article] Enabling energy system transition toward decarbonization in Japan through energy service demand reduction2021

    • Author(s)
      Oshiro Ken、Fujimori Shinichiro、Ochi Yuki、Ehara Tomoki
    • Journal Title

      Energy

      Volume: 227 Pages: 120464-120464

    • DOI

      10.1016/j.energy.2021.120464

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] EMF 35 JMIP study for Japan’s long-term climate and energy policy: scenario designs and key findings2021

    • Author(s)
      Sugiyama Masahiro、Fujimori Shinichiro、Wada Kenichi、Oshiro Ken、Kato Etsushi、Komiyama Ryoichi、Silva Herran Diego、Matsuo Yuhji、Shiraki Hiroto、Ju Yiyi
    • Journal Title

      Sustainability Science

      Volume: 16 Issue: 2 Pages: 355-374

    • DOI

      10.1007/s11625-021-00913-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] The role of renewables in the Japanese power sector: implications from the EMF35 JMIP2021

    • Author(s)
      Shiraki Hiroto、Sugiyama Masahiro、Matsuo Yuhji、Komiyama Ryoichi、Fujimori Shinichiro、Kato Etsushi、Oshiro Ken、Silva Diego Herran
    • Journal Title

      Sustainability Science

      Volume: 16 Issue: 2 Pages: 375-392

    • DOI

      10.1007/s11625-021-00917-y

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Industrial decarbonization under Japan’s national mitigation scenarios: a multi-model analysis2021

    • Author(s)
      Ju Yiyi、Sugiyama Masahiro、Kato Etsushi、Matsuo Yuhji、Oshiro Ken、Silva Herran Diego
    • Journal Title

      Sustainability Science

      Volume: 16 Issue: 2 Pages: 411-427

    • DOI

      10.1007/s11625-021-00905-2

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Demand-side decarbonization and electrification: EMF 35 JMIP study2021

    • Author(s)
      Sakamoto Shogo、Nagai Yu、Sugiyama Masahiro、Fujimori Shinichiro、Kato Etsushi、Komiyama Ryoichi、Matsuo Yuhji、Oshiro Ken、Silva Herran Diego
    • Journal Title

      Sustainability Science

      Volume: 16 Issue: 2 Pages: 395-410

    • DOI

      10.1007/s11625-021-00935-w

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 大規模CO2排出削減に伴う座礁資産 日本の長期戦略を事例にした分析2021

    • Author(s)
      藤森真一郎、大城賢
    • Journal Title

      クリーンエネルギー

      Volume: 30 Pages: 55-61

    • Related Report
      2020 Research-status Report
  • [Journal Article] Stranded investment associated with rapid energy system changes under the mid-century strategy in Japan2020

    • Author(s)
      Oshiro Ken、Fujimori Shinichiro
    • Journal Title

      Sustainability Science

      Volume: 16 Issue: 2 Pages: 477-487

    • DOI

      10.1007/s11625-020-00862-2

    • NAID

      120006888018

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Implications of near-term mitigation actions for mid-century energy investments in Asia2020

    • Author(s)
      大城賢、藤森真一郎、長谷川知子、明石修
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 76 Issue: 5 Pages: I_243-I_252

    • DOI

      10.2208/jscejer.76.5_I_243

    • NAID

      130007970555

    • ISSN
      2185-6648
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 日本の中長期温室効果ガス排出削減シナリオのモデル分析2020

    • Author(s)
      大城賢
    • Journal Title

      環境衛生工学研究

      Volume: 34 Pages: 11-14

    • NAID

      40022280140

    • Related Report
      2020 Research-status Report
  • [Presentation] The potential of carbon capture and utilization for global net-zero emission energy systems2022

    • Author(s)
      Ken Oshiro, Shinichiro Fujimori, Tomoko Hasegawa, Shinichiro Asayama, Hiroto Shiraki, Kiyoshi Takahashi
    • Organizer
      Fifteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IAMC data template applications and extensions in Japan and Asian modelling activities2022

    • Author(s)
      Ken Oshiro, Shinichiro Fujimori, Masahiro, Sugiyama
    • Organizer
      Fifteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 世界を対象としたネットゼロ排出シナリオにおける合成燃料の役割2022

    • Author(s)
      森翔太郎、西浦理、大城賢、藤森真一郎
    • Organizer
      第30回土木学会地球環境シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 日本の2050 年ネットゼロ排出目標における残存排出量削減方策のシナリオ分析2022

    • Author(s)
      大城賢、藤森真一郎
    • Organizer
      第30回土木学会地球環境シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 世界を対象とした2050年ネットゼロ排出達成における合成燃料の役割2022

    • Author(s)
      森翔太郎、西浦理、大城賢、藤森真一郎
    • Organizer
      京都大学環境衛生工学研究会 第44回シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] A multi-model analysis of Japan’s net zero target: residual emissions and the role of carbon dioxide removal2022

    • Author(s)
      Masahiro Sugiyama, Shinichiro Fujimori, Kenichi Wada, Etsushi Kato, Ryoichi Komiyama, Yuhji Matsuo, Osamu Nishiura, Ken Oshiro, Takashi Otsuki
    • Organizer
      Fifteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC)
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The role of hydrogen-based energy carriers in meeting the decarbonization goals of the Paris Agreement2021

    • Author(s)
      Ken Oshiro, Shinichiro Fujimori
    • Organizer
      Fourteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC) 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 交通部門における技術・社会の変容が気候変動政策へ及ぼす影響2021

    • Author(s)
      松井そら、大城賢、藤森真一郎、西浦理
    • Organizer
      第29回土木学会地球環境シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] パリ協定CO2排出削減目標の達成における水素エネルギーキャリアの役割の評価2021

    • Author(s)
      大城賢、藤森真一郎
    • Organizer
      第29回土木学会地球環境シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] 交通部門の社会変革が気候変動政策へ及ぼす影響2021

    • Author(s)
      松井そら、藤森真一郎、大城賢、西浦理
    • Organizer
      第43回京都大学環境衛生工学研究会シンポジウム
    • Related Report
      2021 Research-status Report
  • [Presentation] Measuring stranded investment associated with transformation of energy supply and demand sectors in Japan2020

    • Author(s)
      Oshiro Ken、Fujimori Shinichiro
    • Organizer
      Thirteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] EMF 35 JMIP study for Japan's long-term climate and energy policy: scenario designs and overview2020

    • Author(s)
      Sugiyama Masahiro、Fujimori Shinichiro、Wada Kenichi、Oshiro Ken、Kato Etsushi、Komiyama Ryoichi、Silva Herran Diego、Matsuo Yuhji、Shiraki Hiroto、Ju Yiyi、Shogo Sakamoto
    • Organizer
      Thirteenth Annual Meeting of the Integrated Assessment Modeling Consortium (IAMC)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Industrial Decarbonization Under Japan’s National Mitigation Scenarios: A Multi Model Analysis2020

    • Author(s)
      Ju Yiyi、Sugiyama Masahiro、Kato Etsushi、Matsuo Yuhji、Oshiro Ken、Silva Herran Diego
    • Organizer
      環境経済・政策学会2020年大会
    • Related Report
      2020 Research-status Report
  • [Presentation] アジアにおける温室効果ガス短期削減目標が2050年までのエネルギー投資に及ぼす影響2020

    • Author(s)
      大城賢、藤森真一郎、長谷川知子、明石修
    • Organizer
      第28回地球環境シンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] 日本の長期気候政策の評価:EMF 35 JMIP プロジェクト2020

    • Author(s)
      杉山昌広、藤森真一郎、和田謙一、加藤悦史、小宮山涼一、松尾雄司、大城賢、Diego Silva Herran
    • Organizer
      第39回エネルギー・資源学会研究発表会
    • Related Report
      2020 Research-status Report
  • [Presentation] EMF 35 JMIP study: preliminary results and implications for Japan’s climate change mitigation2020

    • Author(s)
      Sugiyama Masahiro、Fujimori Shinichiro、Wada Kenichi、Oshiro Ken、Kato Etsushi、Kurosawa Atsushi、Komiyama Ryoichi、Silva Herran Diego、Matsuo Yuhji、Shiraki Hiroto、Shogo Sakamoto、Ju Yiyi
    • Organizer
      the 23rd Annual Conference on Global Economic Analysis
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 世界の脱炭素社会実現に向けた水素エネルギーの役割

    • URL

      https://www.t.kyoto-u.ac.jp/ja/news/topics/research/20220304

    • Related Report
      2021 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi