GX & Decarbonization Research

Shimoda Y.

This study evaluates decarbonization scenarios for Japan's residential sector using bottom-up simulations of energy end-use demand in 2050. It identifies energy management requirements from combinations of efficiency, electrification, and r…

Akio Kasuga

This paper quantifies the contribution of the demand side (designers, contractors, owners) to CO2 reduction in structural concrete. Analyzing GCCA's net-zero roadmap and Japanese NIES data, it clarifies the reduction sharing between supply …

Li Lanchun, Lanchun Li

This paper analyzes the strategic importance of nuclear fusion for carbon neutrality, comparing development strategies and technical roadmaps of the US, UK, Germany, Japan, and others. It highlights how government funding drives private inv…

Shoko SUZUKI, Jungmin KIM, Momoka WATANABE +6

This paper proposes decarbonization methods for detached houses that incorporate dynamic CO2 emission factors. By reflecting the time-varying carbon intensity of electricity, it enables more accurate assessment of emission reduction effects…

Yutaka IWASAKI, Takuro Kobashi, Yukari Fuchigami +1

This study proposes a scenario-based framework to quantify year-by-year impacts of gradual rooftop PV, EV, and V2H deployment from 2018 to 2050. Using Suita City, Japan, it assesses five dimensions: CO2 reduction, cost savings, self-consump…

Norikuni Horiguchi

This paper proposes a fundamental shift from generation-cost to storage-cost-based energy systems, introducing zero-loss transmission, battery tankers, and mother storage bases. These innovations enable electricity logistics and enhance nat…

Masataka Azuma

This paper introduces initiatives to apply diffusion-bonded compact heat exchangers (DCHE) to carbon-neutral applications. DCHE offers high efficiency and compactness, with growing demand in CCUS and hydrogen sectors. The paper outlines tec…

Kazuki Ehara, Liqiao Huang, Yin Long +1

This study uses spatially detailed transport data and demographic projections to compare rail and car carbon emissions across Japanese regions toward 2035. It finds rail remains more carbon-efficient in cities, but in rural areas, rail emis…

Xu LinTing, Zhengyang Zhang, Nguyễn Thị Quỳnh Trang +1

This study develops a static-dynamic material flow model to quantify antimony demand and recovery potential for lead-acid batteries in stationary energy storage. It highlights the importance of coordinated substitution and recycling strateg…

Tao Cao, Alessio Mastrucci, Masahiro Sugiyama +2

This paper analyzes how Japan's aging population and declining energy demand affect residential decarbonization. It explores how longer-lived buildings and demographic shifts shape optimal decarbonization pathways.

Ayako Takemi

This paper examines how Japan's geographic and systemic constraints create 'compelled flexibility,' forcing simultaneous pursuit of diverse technological pathways for energy security and decarbonization. Analyzing recent policies like the G…

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This case study investigates the impact of community-based CO2 reduction measures on regional economy and employment. It analyzes specific local initiatives and suggests that decarbonization can contribute to regional revitalization.

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This paper examines fuel conversion technologies for kilns to achieve carbon neutrality. It analyzes CO2 reduction effects and technical challenges of switching from fossil fuels to hydrogen or biomass. Provides insights for decarbonizing i…

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This study investigates household fuel sources in rural Java, focusing on firewood usage. It reveals the prevalence of traditional biomass and highlights challenges for energy transition to modern fuels.

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This study examines the impact of fuel switching (e.g., from coal to natural gas or biomass) in KHD lime kilns. It evaluates post-conversion energy efficiency and CO2 emission reductions, offering concrete improvement measures for industria…

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This paper evaluates the impact of transitioning to decarbonized fuels in ship design. It analyzes technical and economic challenges associated with fuel conversion and outlines pathways for implementation.

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This paper discusses fuel conversion for high-load heavy oil-fired boilers, exploring switching to lower-carbon fuels to reduce CO2 emissions while maintaining operational efficiency. Likely covers conversion methods and cost analysis.

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This paper reports a case study of installing LNG satellite equipment to convert boiler fuel from conventional sources to LNG, thereby reducing carbon dioxide emissions.

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This paper reports on fuel conversion at the Ishinomaki Factory, likely detailing the shift from heavy oil to natural gas and the resulting CO2 emission reductions.

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This paper examines the technical feasibility and environmental impact of converting a lime kiln to co-fire petroleum coke. It is expected to cover modifications, efficiency changes, and emission characteristics.