• Paper

    Masahiro Sugiyama, Associate Professor
    Ju Yiyi, Project Assistant Professor

A special issue from Assoc. Prof. Masahiro Sugiyama, Assist. Prof. Ju Yiyi, and joint researchers published at “Sustainability Science”

The special issue “Energy Scenarios for Long-Term Climate Change Mitigation in Japan” was organized in order to investigate how Japan could achieve large emissions reductions under many kinds of uncertainty, including policy stringency, technological constraints, service demand levels, and energy import costs. It is the research output summary of Stanford Energy Modeling Forum (EMF) 35 Japan Model Intercomparison Project (JMIP).

It contains one main paper that laid out the scenario design (Sugiyama et al. 2021) and three crosscutting papers that addressed essential issues for long-term mitigation in Japan: the expansion of renewables (Shiraki et al. 2021), electrification (Sakamoto et al. 2021), and industrial decarbonization (Ju et al. 2021).

Special Feature: Energy Scenarios for Long-Term Climate Change Mitigation in Japan
ISSN: 1862-4065 (Print) 1862-4057 (Online)
https://link.springer.com/journal/11625/topicalCollection/AC_9ad334fd69d8118185398263fbc22961

[1]Research title：


EMF 35 JMIP study for Japan’s long-term climate and energy policy: scenario designs and key findings

Key message：


Sugiyama et al. (2021) identified common patterns for mitigation across different models and scenario settings: economy-wide improvements in energy efficiency, the decarbonization of electricity, and end-use electrification. The models also suggest that heavy industries will be one of the hardest to decarbonize in the absence of structural changes in the economy. Furthermore, the models reveal that future policy must be substantially enhanced, compared to the strength and breadth of current policy, to achieve the goal of an 80% reduction in emissions.

Joint Researchers：


Masahiro Sugiyama, Shinichiro Fujimori, Kenichi Wada, Ken Oshiro, Etsushi Kato, Ryoichi Komiyama, Diego Silva Herran, Yuhji Matsuo, Hiroto Shiraki & Yiyi Ju

Journal：


Sustainability Science (2021).
https://doi.org/10.1007/s11625-021-00913-2

[2]Research title：


Industrial decarbonization under Japan’s national mitigation scenarios: a multi-model analysis

Key message：


Ju et al. (2021) showed that carbon capture and storage (CCS) and hydrogen are key to deep decarbonization, particularly the deep mitigation of steelmaking. By taking stock of the current modeling of the industrial sector, the paper also revealed that more technologies in the early stages of development should be incorporated in current models, particularly in terms of assessing the net-zero target.

Joint Researchers：


Yiyi Ju, Masahiro Sugiyama, Etsushi Kato, Yuhji Matsuo, Ken Oshiro & Diego Silva Herran

Journal：


Sustainability Science (2021).
https://doi.org/10.1007/s11625-021-00905-2

Contact:


Masahiro Sugiyama
Associate Professor, Institute for Future Initiatives
https://ifi.u-tokyo.ac.jp/en/people/sugiyama-masahiro/