Environmental and Social Impact Assessment Team

Developing Carbon Neutrality Scenarios through Technology Assessment

We examine the pathways to a zero emission society by evaluating the impact of new technologies on the environment and society.

Environmental and Social Impact Assessment Team

Research themes

  • Long-term energy scenario analysis using mathematical models
  • Assessing technologies based on systems/life cycle thinking
  • Sustainable biomass utilization through the Water-Energy-Food (WEF) nexus approach

Concept for social contributions and implementation

Our goal is to contribute to the transition toword a zero-emission society by accelerating technology development.

Members

Deputy Director (Leader, Environmental and Social Impact Assessment Team)

KUDOH Yuki

Member

SHIMADA Yutaro

Technical Staff

FUJII Tomoko

The Environmental and Social Impact Assessment Team conducts research on the evaluation of innovative technologies essential for achieving a zero-emission society. By leveraging specialized expertise in technology and a comprehensive perspective, we assess the environmental and socio-economic impacts of technology adoption. Additionally, we analyze the role of these technologies within the energy system using mathematical models and develop scenarios to achieve carbon neutrality.

Specifically, we focus on the following three themes:

Long-term energy scenario analysis using mathematical models

Using mathematical models such as “AIST-MARKAL” and “AIST-TIMES,” we simulate future energy supply and demand to analyze scenarios for the introduction of low-carbon technologies toward carbon neutrality. The simulation results serve as fundamental information for guiding technology development and policy design essential for achieving carbon neutrality.

Assessing technologies based on systems/life cycle thinking

We evaluate the impacts of emerging technologies—including environmental, economic, social, and supply stability aspects—based on specialized expertise in technology and a comprehensive perspective. By taking a holistic view of the entire energy system and supply chain, we identify the key technological elements and institutional frameworks necessary for integrating innovative technologies into society.

Sustainable biomass utilization through the Water-Energy-Food (WEF) nexus approach

We evaluate the sustainability of biomass utilization through the Water–Energy–Food (WEF) nexus approach, which assesses resource efficiency, greenhouse gas emissions, and environmental trade-offs. The nexus index serves as a valuable tool for projecting the long-term environmental and socio-economic benefits of biomass utilization to ensure a more sustainable and resilient future, particularly in the Asian countries.

Analysis of the Water-Energy-Food Nexus for Sustainable Biomass Utilisation for Fuel, Fibre, and Food in Selected EAS Countries – Phase I (2023–2024) Report (external site)

Video

Research

Gonocruz, R.A.; Ozawa, A.; Kudoh, Y., Japan’s energy transition scenarios to achieve carbon neutrality under multiple energy service demand: Energy system analysis using the AIST-TIMES model, Appl. Energy 2025, 383, 125300

Published JAN 20 2025

Tomai, T.; Guzman-Urbina, A.; Sato, T.; Iwase K. , Hydrothermal Conditions Enhance Electrochemical CO2 Reduction Reaction: A Sustainable Path to Efficient Carbon Recycling, Adv. Sustain. Syst. 2024, 2400489, 2400489-1 to 2400489-8

Published NOV 06 2024

Gonocruz, R.A., Yoshida, Y., Silava, N., Aguirre, R., Maguindayao, E., Ozawa, A., Santiago, J., A multi-scenario evaluation of the energy transition mechanism in the Philippines towards decarbonization, J. Clean Prod. 2024, 438, 140819

Published JAN 17 2024

Gonocruz, R.A.T; Yoshida, Y.; Ozawa, A.; Aguirre, R.A; Maguindayao, E.J, Impacts of agrivoltaics in rural electrification and decarbonization in the Philippines, Appl. Energy 2023, 350, 121832

Published AUG 27 2023
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