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Yuki Kudoh
Research Planning Office of Energy and Environment, Research Promotion Division of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8561, Japan

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Journal article
Published: 12 March 2021 in Energy
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Renewable energy technologies play an important role in the future energy systems, not only to realize a low-carbon society, but also to provide socioeconomic benefits such as creating employment opportunities and revitalizing local economies. This study considers the impact of employment in rural power plants as a socioeconomic benefit and analyzes the transition to a low-carbon energy system using a multi-regional MARKet ALlocation (MARKAL) model. The benefit is monetized in order to incorporate it into a cost minimization objective function, and we focus on the impact of the differences in the value on the Japanese energy system and employment. Our results suggest that when considering employment effects of rural power plants, renewable power generation will increase up to 350 TWh, mainly biomass and solar photovoltaic, in 2030. Total employment associated with power generation facilities in rural areas over the model period (45 y) will increase by up to 2.28 million person-year, and biomass power generation, in particular, can have a significant role in the revitalization of local economies owing to the large job creation effect during its operation and maintenance phase.

ACS Style

Yu Nagatomo; Akito Ozawa; Yuki Kudoh; Hiroki Hondo. Impacts of employment in power generation on renewable-based energy systems in Japan— Analysis using an energy system model. Energy 2021, 226, 120350 .

AMA Style

Yu Nagatomo, Akito Ozawa, Yuki Kudoh, Hiroki Hondo. Impacts of employment in power generation on renewable-based energy systems in Japan— Analysis using an energy system model. Energy. 2021; 226 ():120350.

Chicago/Turabian Style

Yu Nagatomo; Akito Ozawa; Yuki Kudoh; Hiroki Hondo. 2021. "Impacts of employment in power generation on renewable-based energy systems in Japan— Analysis using an energy system model." Energy 226, no. : 120350.

Journal article
Published: 23 March 2019 in International Journal of Hydrogen Energy
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Hydrogen energy carriers such as liquid hydrogen (LH2), methylcyclohexane (MCH), and ammonia (NH3) are promising energy vectors in the clean energy systems currently being developed. However, their effectiveness in mitigating environmental emissions must be assessed by life cycle analyses throughout the supply chain. In this study, while focusing on hydrogen energy carriers, life cycle inventory analyses were conducted to estimate CO2 emissions from the following types of power generation plants in Japan: a hydrogen (H2) mono-firing power plant using LH2 or MCH that originated from overseas renewable electricity; and NH3 co-firing with fossil fuel and NH3 mono-firing power plants using hydrogen energy carriers that originated from overseas natural gas or renewable electricity. Parameters related to the supply chains were collected by literature surveys, and the Japanese life cycle inventory database was primarily used to calculate the emissions. From the results, CO2 hotspots of the target supply chains and potential measures are identified that become necessary to establish low-carbon supply chains.

ACS Style

Akito Ozawa; Yuki Kudoh; Naomi Kitagawa; Ryoji Muramatsu. Life cycle CO2 emissions from power generation using hydrogen energy carriers. International Journal of Hydrogen Energy 2019, 44, 11219 -11232.

AMA Style

Akito Ozawa, Yuki Kudoh, Naomi Kitagawa, Ryoji Muramatsu. Life cycle CO2 emissions from power generation using hydrogen energy carriers. International Journal of Hydrogen Energy. 2019; 44 (21):11219-11232.

Chicago/Turabian Style

Akito Ozawa; Yuki Kudoh; Naomi Kitagawa; Ryoji Muramatsu. 2019. "Life cycle CO2 emissions from power generation using hydrogen energy carriers." International Journal of Hydrogen Energy 44, no. 21: 11219-11232.

Journal article
Published: 05 September 2018 in International Journal of Hydrogen Energy
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Low-carbon technologies will play a vital role in the realization of environmentally sustainable economies. However, uncertainties remain as to the feasibility of their development and implementation. Therefore, possible scenarios for the potential of these technologies should be considered to allow for flexible decision-making with respect to long-term energy strategies in Japan. This study evaluates the role of hydrogen in future energy systems in Japan using a MARKet ALlocation (MARKAL) model. A range of uncertainties are considered for nuclear power generation and carbon capture and storage (CCS) from fossil power generation. Our results suggest that an 80% reduction of CO2 emissions from the 2013 level by 2050 requires emissions from the electricity sector to decrease to nearly zero. Hydrogen power must play a functional role in future energy systems in Japan, but its contribution should depend on nuclear power and CCS.

ACS Style

Akito Ozawa; Yuki Kudoh; Akinobu Murata; Tomonori Honda; Itoko Saita; Hideyuki Takagi. Hydrogen in low-carbon energy systems in Japan by 2050: The uncertainties of technology development and implementation. International Journal of Hydrogen Energy 2018, 43, 18083 -18094.

AMA Style

Akito Ozawa, Yuki Kudoh, Akinobu Murata, Tomonori Honda, Itoko Saita, Hideyuki Takagi. Hydrogen in low-carbon energy systems in Japan by 2050: The uncertainties of technology development and implementation. International Journal of Hydrogen Energy. 2018; 43 (39):18083-18094.

Chicago/Turabian Style

Akito Ozawa; Yuki Kudoh; Akinobu Murata; Tomonori Honda; Itoko Saita; Hideyuki Takagi. 2018. "Hydrogen in low-carbon energy systems in Japan by 2050: The uncertainties of technology development and implementation." International Journal of Hydrogen Energy 43, no. 39: 18083-18094.

Book chapter
Published: 31 August 2018 in Hydrogen Supply Chains
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ACS Style

Yuki Kudoh; Akito Ozawa. Life Cycle Assessment of Hydrogen Supply Chain: A Case Study for Japanese Automotive Use. Hydrogen Supply Chains 2018, 499 -519.

AMA Style

Yuki Kudoh, Akito Ozawa. Life Cycle Assessment of Hydrogen Supply Chain: A Case Study for Japanese Automotive Use. Hydrogen Supply Chains. 2018; ():499-519.

Chicago/Turabian Style

Yuki Kudoh; Akito Ozawa. 2018. "Life Cycle Assessment of Hydrogen Supply Chain: A Case Study for Japanese Automotive Use." Hydrogen Supply Chains , no. : 499-519.

Contributors
Published: 31 August 2018 in Hydrogen Supply Chains
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ACS Style

Catherine Azzaro-Pantel; Lars Baetcke; Mohamed Becherif; Olivier Bethoux; Cyril Bourasseau; Katy Cabaret; Camille Cany; Bela Csukas; Sofía De-León Almaraz; Chun Deng; Michael Ehrenstein; Xiao Feng; Didier Grouset; Gonzalo Guillén-Gosálbez; Benjamin Guinot; Zaza Nadja Lee Hansen; Wang Jingdai; Martin Kaltschmitt; Yuki Kudoh; Alain Le Duigou; Jochen Linssen; Paul Lucchese; Christine Mansilla; Frank Markert; Ange Nzihou; Jesus Ochoa Robles; Akito Ozawa; Doan Pham Minh; Thanh Son Phan; Fabienne Picard; Haithman Ramadan; Cyrille Ridart; Anne Rödl; Tan Ji Siang; Nicoals Simoncini; Monika Varga; Dai-Viet N. Vo; Christina Wulf; Yang Yongrong; Petra Zapp; Liao Zuwei. Contributors. Hydrogen Supply Chains 2018, 1 .

AMA Style

Catherine Azzaro-Pantel, Lars Baetcke, Mohamed Becherif, Olivier Bethoux, Cyril Bourasseau, Katy Cabaret, Camille Cany, Bela Csukas, Sofía De-León Almaraz, Chun Deng, Michael Ehrenstein, Xiao Feng, Didier Grouset, Gonzalo Guillén-Gosálbez, Benjamin Guinot, Zaza Nadja Lee Hansen, Wang Jingdai, Martin Kaltschmitt, Yuki Kudoh, Alain Le Duigou, Jochen Linssen, Paul Lucchese, Christine Mansilla, Frank Markert, Ange Nzihou, Jesus Ochoa Robles, Akito Ozawa, Doan Pham Minh, Thanh Son Phan, Fabienne Picard, Haithman Ramadan, Cyrille Ridart, Anne Rödl, Tan Ji Siang, Nicoals Simoncini, Monika Varga, Dai-Viet N. Vo, Christina Wulf, Yang Yongrong, Petra Zapp, Liao Zuwei. Contributors. Hydrogen Supply Chains. 2018; ():1.

Chicago/Turabian Style

Catherine Azzaro-Pantel; Lars Baetcke; Mohamed Becherif; Olivier Bethoux; Cyril Bourasseau; Katy Cabaret; Camille Cany; Bela Csukas; Sofía De-León Almaraz; Chun Deng; Michael Ehrenstein; Xiao Feng; Didier Grouset; Gonzalo Guillén-Gosálbez; Benjamin Guinot; Zaza Nadja Lee Hansen; Wang Jingdai; Martin Kaltschmitt; Yuki Kudoh; Alain Le Duigou; Jochen Linssen; Paul Lucchese; Christine Mansilla; Frank Markert; Ange Nzihou; Jesus Ochoa Robles; Akito Ozawa; Doan Pham Minh; Thanh Son Phan; Fabienne Picard; Haithman Ramadan; Cyrille Ridart; Anne Rödl; Tan Ji Siang; Nicoals Simoncini; Monika Varga; Dai-Viet N. Vo; Christina Wulf; Yang Yongrong; Petra Zapp; Liao Zuwei. 2018. "Contributors." Hydrogen Supply Chains , no. : 1.

Journal article
Published: 01 August 2018 in International Journal of Hydrogen Energy
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ACS Style

Akito Ozawa; Yuki Kudoh. Performance of residential fuel-cell-combined heat and power systems for various household types in Japan. International Journal of Hydrogen Energy 2018, 43, 15412 -15422.

AMA Style

Akito Ozawa, Yuki Kudoh. Performance of residential fuel-cell-combined heat and power systems for various household types in Japan. International Journal of Hydrogen Energy. 2018; 43 (32):15412-15422.

Chicago/Turabian Style

Akito Ozawa; Yuki Kudoh. 2018. "Performance of residential fuel-cell-combined heat and power systems for various household types in Japan." International Journal of Hydrogen Energy 43, no. 32: 15412-15422.

Chapter
Published: 14 July 2018 in Devising a Clean Energy Strategy for Asian Cities
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There are a variety of potential measures to be take in the transport sector to move toward clean and sustainable transport in Asian cities. Indeed, the breadth of the range of options available makes it difficult for stakeholders to identify which measure should be taken first. To confront this issue, this chapter introduces a decomposition model of transport energy consumption and the associated CO2 emissions to identify the most relevant set of measures to be taken. Lessons learnt from Japanese experiences are presented by categorizing the measures to be taken to move toward low-carbon transport in Japan using this model.

ACS Style

Yuki Kudoh. Towards Clean and Sustainable Transport in Asian Cities: Lessons Learnt from Japanese Experiences. Devising a Clean Energy Strategy for Asian Cities 2018, 123 -133.

AMA Style

Yuki Kudoh. Towards Clean and Sustainable Transport in Asian Cities: Lessons Learnt from Japanese Experiences. Devising a Clean Energy Strategy for Asian Cities. 2018; ():123-133.

Chicago/Turabian Style

Yuki Kudoh. 2018. "Towards Clean and Sustainable Transport in Asian Cities: Lessons Learnt from Japanese Experiences." Devising a Clean Energy Strategy for Asian Cities , no. : 123-133.

Journal article
Published: 01 March 2018 in Omega
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ACS Style

Jun Nakatani; Kiyotaka Tahara; Kenichi Nakajima; Ichiro Daigo; Hideaki Kurishima; Yuki Kudoh; Kazuyo Matsubae; Yasuhiro Fukushima; Tomohiko Ihara; Yasunori Kikuchi; Asako Nishijima; Yuichi Moriguchi. A graph theory-based methodology for vulnerability assessment of supply chains using the life cycle inventory database. Omega 2018, 75, 165 -181.

AMA Style

Jun Nakatani, Kiyotaka Tahara, Kenichi Nakajima, Ichiro Daigo, Hideaki Kurishima, Yuki Kudoh, Kazuyo Matsubae, Yasuhiro Fukushima, Tomohiko Ihara, Yasunori Kikuchi, Asako Nishijima, Yuichi Moriguchi. A graph theory-based methodology for vulnerability assessment of supply chains using the life cycle inventory database. Omega. 2018; 75 ():165-181.

Chicago/Turabian Style

Jun Nakatani; Kiyotaka Tahara; Kenichi Nakajima; Ichiro Daigo; Hideaki Kurishima; Yuki Kudoh; Kazuyo Matsubae; Yasuhiro Fukushima; Tomohiko Ihara; Yasunori Kikuchi; Asako Nishijima; Yuichi Moriguchi. 2018. "A graph theory-based methodology for vulnerability assessment of supply chains using the life cycle inventory database." Omega 75, no. : 165-181.

Journal article
Published: 01 March 2018 in Energy and Buildings
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Japan needs to improve its residential energy efficiency to reduce energy consumption and thus achieve its greenhouse gas (GHG) emissions reduction targets. Understanding the differences in household behavior and energy use is important to evaluate the effect of energy conservation measures. In this study, the authors propose a new method for household energy use modeling based on questionnaire surveys on home appliances and hot water use. Fifteen-minute residential electricity and heat demand profiles with different seasons, household structures and lifestyles are obtained from the survey results, and compared with available statistical data. The replacement effects of refrigerators, TVs and lighting on residential electricity savings, net present value (NPV) and GHG reductions are evaluated using calculated energy demand. Variations in household energy use are considered under different change scenarios in household structure and by conducting an uncertainty analysis based on the Monte Carlo method. The results indicate that GHG emissions can be reduced by purchasing a new refrigerator, and electricity costs can be reduced by installing LED lamps in the living/dining room. It is also found that there is a wide range of uncertainty for NPV and GHG reductions after replacing a TV because different households watch TV for different lengths of time.

ACS Style

Akito Ozawa; Yuki Kudoh; Yoshikuni Yoshida. A new method for household energy use modeling: A questionnaire-based approach. Energy and Buildings 2018, 162, 32 -41.

AMA Style

Akito Ozawa, Yuki Kudoh, Yoshikuni Yoshida. A new method for household energy use modeling: A questionnaire-based approach. Energy and Buildings. 2018; 162 ():32-41.

Chicago/Turabian Style

Akito Ozawa; Yuki Kudoh; Yoshikuni Yoshida. 2018. "A new method for household energy use modeling: A questionnaire-based approach." Energy and Buildings 162, no. : 32-41.

Journal article
Published: 23 June 2017 in Sustainability
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Hydrogen is a promising energy carrier in the clean energy systems currently being developed. However, its effectiveness in mitigating greenhouse gas (GHG) emissions requires conducting a lifecycle analysis of the process by which hydrogen is produced and supplied. This study focuses on the hydrogen for the transport sector, in particular renewable hydrogen that is produced from wind- or solar PV-powered electrolysis. A life cycle inventory analysis is conducted to evaluate the Well-to-Tank (WtT) GHG emissions from various renewable hydrogen supply chains. The stages of the supply chains include hydrogen being produced overseas, converted into a transportable hydrogen carrier (liquid hydrogen or methylcyclohexane), imported to Japan by sea, distributed to hydrogen filling stations, restored from the hydrogen carrier to hydrogen and filled into fuel cell vehicles. For comparison, an analysis is also carried out with hydrogen produced by steam reforming of natural gas. Foreground data related to the hydrogen supply chains are collected by literature surveys and the Japanese life cycle inventory database is used as the background data. The analysis results indicate that some of renewable hydrogen supply chains using liquid hydrogen exhibited significantly lower WtT GHG emissions than those of a supply chain of hydrogen produced by reforming of natural gas. A significant piece of the work is to consider the impacts of variations in the energy and material inputs by performing a probabilistic uncertainty analysis. This suggests that the production of renewable hydrogen, its liquefaction, the dehydrogenation of methylcyclohexane and the compression of hydrogen at the filling station are the GHG-intensive stages in the target supply chains.

ACS Style

Akito Ozawa; Mai Inoue; Naomi Kitagawa; Ryoji Muramatsu; Yurie Anzai; Yutaka Genchi; Yuki Kudoh. Assessing Uncertainties of Well-To-Tank Greenhouse Gas Emissions from Hydrogen Supply Chains. Sustainability 2017, 9, 1101 .

AMA Style

Akito Ozawa, Mai Inoue, Naomi Kitagawa, Ryoji Muramatsu, Yurie Anzai, Yutaka Genchi, Yuki Kudoh. Assessing Uncertainties of Well-To-Tank Greenhouse Gas Emissions from Hydrogen Supply Chains. Sustainability. 2017; 9 (7):1101.

Chicago/Turabian Style

Akito Ozawa; Mai Inoue; Naomi Kitagawa; Ryoji Muramatsu; Yurie Anzai; Yutaka Genchi; Yuki Kudoh. 2017. "Assessing Uncertainties of Well-To-Tank Greenhouse Gas Emissions from Hydrogen Supply Chains." Sustainability 9, no. 7: 1101.

Conference report
Published: 29 March 2017 in The International Journal of Life Cycle Assessment
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ACS Style

Keisuke Nansai; Masaharu Motoshita; Ichiro Daigo; Seiji Hashimoto; Kiyotada Hayashi; Keiichiro Kanemoto; Aiichiro Kashiwagi; Yoshinori Kobayashi; Shinsuke Kondoh; Yuki Kudoh; Yasunari Matsuno; Hiroki Tanikawa; Eiji Yamasue; Naoki Yoshikawa. EcoBalance 2016-responsible value chains for sustainability (October 3-6, 2016, Kyoto, Japan). The International Journal of Life Cycle Assessment 2017, 22, 1165 -1174.

AMA Style

Keisuke Nansai, Masaharu Motoshita, Ichiro Daigo, Seiji Hashimoto, Kiyotada Hayashi, Keiichiro Kanemoto, Aiichiro Kashiwagi, Yoshinori Kobayashi, Shinsuke Kondoh, Yuki Kudoh, Yasunari Matsuno, Hiroki Tanikawa, Eiji Yamasue, Naoki Yoshikawa. EcoBalance 2016-responsible value chains for sustainability (October 3-6, 2016, Kyoto, Japan). The International Journal of Life Cycle Assessment. 2017; 22 (7):1165-1174.

Chicago/Turabian Style

Keisuke Nansai; Masaharu Motoshita; Ichiro Daigo; Seiji Hashimoto; Kiyotada Hayashi; Keiichiro Kanemoto; Aiichiro Kashiwagi; Yoshinori Kobayashi; Shinsuke Kondoh; Yuki Kudoh; Yasunari Matsuno; Hiroki Tanikawa; Eiji Yamasue; Naoki Yoshikawa. 2017. "EcoBalance 2016-responsible value chains for sustainability (October 3-6, 2016, Kyoto, Japan)." The International Journal of Life Cycle Assessment 22, no. 7: 1165-1174.

Journal article
Published: 14 January 2017 in Sustainability
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There is a global push to develop renewable energy to further a low-carbon society. However, the nature of variable renewable energy (VRE) sources such as wind power and solar photovoltaic (PV) systems may create problems because electricity grids require a stable power supply to match demand. To evaluate the potential capacity of VREs that may be installed, we develop an optimized model that balances power supply and demand and also considers grid balancing by battery storage and load frequency control. The model was applied to a case study of an isolated grid on a remote Japanese island. When set to optimize the grid in terms of lowest cost, the model suggested that, compared with the base case, the capacity of wind power should be increased by a factor of 1.7 and 15.8 for situations without and with battery storage, respectively. Since it was always considered to be more expensive than wind power, no change in solar PV capacity was observed. These approaches resulted in a decrease in the total power generation cost of 2% and 24%, respectively, while total CO2 emissions fell by 3% and 52%, primarily driven by decreased used of the existing fossil-fueled thermal plant.

ACS Style

Mai Inoue; Yutaka Genchi; Yuki Kudoh. Evaluating the Potential of Variable Renewable Energy for a Balanced Isolated Grid: A Japanese Case Study. Sustainability 2017, 9, 119 .

AMA Style

Mai Inoue, Yutaka Genchi, Yuki Kudoh. Evaluating the Potential of Variable Renewable Energy for a Balanced Isolated Grid: A Japanese Case Study. Sustainability. 2017; 9 (1):119.

Chicago/Turabian Style

Mai Inoue; Yutaka Genchi; Yuki Kudoh. 2017. "Evaluating the Potential of Variable Renewable Energy for a Balanced Isolated Grid: A Japanese Case Study." Sustainability 9, no. 1: 119.

Journal article
Published: 04 December 2015 in Sustainability
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This paper presents the findings of an expert working group of researchers from East Asian countries. The group was tasked with developing a theoretically sound and practically implementable methodology for assessing the sustainability of biomass utilisation in East Asian countries based on the needs and potential of biomass resources in this region. Building on six years of research conducted between 2007 and 2013, the working group formulated a set of main and secondary indicators for biomass utilisation under three pillars of sustainability. For the environmental pillar, the main indicator was life cycle greenhouse gas emissions and secondary indicators were water consumption and soil quality. For the economic pillar, the main indicator was total value added and secondary indicators were net profit, productivity, and net energy balance. For the social pillar, the main indicators were employment generation and access to modern energy, and the secondary indicator was the human development index. The application of the working group methodology and indicators in sustainability assessments of biomass utilisation will enable decision makers in East Asian countries to compare the sustainability of biomass utilisation options and to make decisions on whether or not to launch or sustain biomass utilisation initiatives.

ACS Style

Yuki Kudoh; Masayuki Sagisaka; Sau Soon Chen; Jessie C. Elauria; Shabbir H. Gheewala; Udin Hasanudin; Jane Romero; Vinod K. Sharma; Xunpeng Shi. Region-Specific Indicators for Assessing the Sustainability of Biomass Utilisation in East Asia. Sustainability 2015, 7, 16237 -16259.

AMA Style

Yuki Kudoh, Masayuki Sagisaka, Sau Soon Chen, Jessie C. Elauria, Shabbir H. Gheewala, Udin Hasanudin, Jane Romero, Vinod K. Sharma, Xunpeng Shi. Region-Specific Indicators for Assessing the Sustainability of Biomass Utilisation in East Asia. Sustainability. 2015; 7 (12):16237-16259.

Chicago/Turabian Style

Yuki Kudoh; Masayuki Sagisaka; Sau Soon Chen; Jessie C. Elauria; Shabbir H. Gheewala; Udin Hasanudin; Jane Romero; Vinod K. Sharma; Xunpeng Shi. 2015. "Region-Specific Indicators for Assessing the Sustainability of Biomass Utilisation in East Asia." Sustainability 7, no. 12: 16237-16259.

Journal article
Published: 27 November 2015 in Sustainability
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Input–output (IO) analysis is a useful economic method to evaluate the potential socio-economic and environmental impacts associated both directly and indirectly with energy technologies. Using an IO table, this study establishes a scenario analysis framework to evaluate the socio-economic and environmental impacts arising from future power generation technology mixes. The impact indices selected are employment generation and greenhouse gas emissions. The study adopts a hybrid method for the framework it establishes: a combined bottom-up and IO life cycle inventory analysis approach to reflect the technological differences by power generation technology. Using an IO table for future analysis is limited because the industrial structure is fixed to the IO table benchmark year and it is thus not possible to reflect any potential inter-sector transaction changes that may arise from technological progress. However, the framework is valuable in estimating the future potential impacts that might arise from the current industrial structure and technology level. A case study is conducted using the established framework on the potential impacts of Japan’s future grid mix scenarios. The case study considers the differences in lead-times and durable years per power generation technology to ascertain the continuous and temporary jobs and greenhouse gas (GHG) emissions.

ACS Style

Shunichi Hienuki; Yuki Kudoh; Hiroki Hondo. Establishing a Framework for Evaluating Environmental and Socio-Economic Impacts by Power Generation Technology Using an Input–output Table—A Case Study of Japanese Future Electricity Grid Mix. Sustainability 2015, 7, 15794 -15811.

AMA Style

Shunichi Hienuki, Yuki Kudoh, Hiroki Hondo. Establishing a Framework for Evaluating Environmental and Socio-Economic Impacts by Power Generation Technology Using an Input–output Table—A Case Study of Japanese Future Electricity Grid Mix. Sustainability. 2015; 7 (12):15794-15811.

Chicago/Turabian Style

Shunichi Hienuki; Yuki Kudoh; Hiroki Hondo. 2015. "Establishing a Framework for Evaluating Environmental and Socio-Economic Impacts by Power Generation Technology Using an Input–output Table—A Case Study of Japanese Future Electricity Grid Mix." Sustainability 7, no. 12: 15794-15811.

Journal article
Published: 01 August 2015 in Journal of Cleaner Production
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ACS Style

Masaharu Motoshita; Masaji Sakagami; Yuki Kudoh; Kiyotaka Tahara; Atsushi Inaba. Potential impacts of information disclosure designed to motivate Japanese consumers to reduce carbon dioxide emissions on choice of shopping method for daily foods and drinks. Journal of Cleaner Production 2015, 101, 205 -214.

AMA Style

Masaharu Motoshita, Masaji Sakagami, Yuki Kudoh, Kiyotaka Tahara, Atsushi Inaba. Potential impacts of information disclosure designed to motivate Japanese consumers to reduce carbon dioxide emissions on choice of shopping method for daily foods and drinks. Journal of Cleaner Production. 2015; 101 ():205-214.

Chicago/Turabian Style

Masaharu Motoshita; Masaji Sakagami; Yuki Kudoh; Kiyotaka Tahara; Atsushi Inaba. 2015. "Potential impacts of information disclosure designed to motivate Japanese consumers to reduce carbon dioxide emissions on choice of shopping method for daily foods and drinks." Journal of Cleaner Production 101, no. : 205-214.

Journal article
Published: 01 April 2015 in Journal of Cleaner Production
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ACS Style

Shunichi Hienuki; Yuki Kudoh; Hiroki Hondo. Life cycle employment effect of geothermal power generation using an extended input–output model: the case of Japan. Journal of Cleaner Production 2015, 93, 203 -212.

AMA Style

Shunichi Hienuki, Yuki Kudoh, Hiroki Hondo. Life cycle employment effect of geothermal power generation using an extended input–output model: the case of Japan. Journal of Cleaner Production. 2015; 93 ():203-212.

Chicago/Turabian Style

Shunichi Hienuki; Yuki Kudoh; Hiroki Hondo. 2015. "Life cycle employment effect of geothermal power generation using an extended input–output model: the case of Japan." Journal of Cleaner Production 93, no. : 203-212.

Journal article
Published: 01 January 2014 in Journal of Life Cycle Assessment, Japan
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ACS Style

Aya Heiho; Hiroki Hondo; Yuki Kudoh. Practical Use of Input-output Tables to Estimate GHG Emissions from Biomass Plant Construction. Journal of Life Cycle Assessment, Japan 2014, 10, 13 -24.

AMA Style

Aya Heiho, Hiroki Hondo, Yuki Kudoh. Practical Use of Input-output Tables to Estimate GHG Emissions from Biomass Plant Construction. Journal of Life Cycle Assessment, Japan. 2014; 10 (1):13-24.

Chicago/Turabian Style

Aya Heiho; Hiroki Hondo; Yuki Kudoh. 2014. "Practical Use of Input-output Tables to Estimate GHG Emissions from Biomass Plant Construction." Journal of Life Cycle Assessment, Japan 10, no. 1: 13-24.

Proceedings article
Published: 01 November 2013 in 2013 World Electric Vehicle Symposium and Exhibition (EVS27)
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A life cycle inventory analysis is conducted in this study to evaluate the environmental merit of a vehicle to home (V2H) system towards the conventional counterpart equivalent in terms of environmental impact category global warming expressed as CO2 emissions. The V2H system comprises a residential house, a photovoltaic solar system, a battery electric vehicle and a charging system, whereas the conventional system includes a residential house, a gasoline vehicle and a petrol station. The system boundary of each components consists of its production, use and end-of-life stages, where data available. CO2 emissions are calculated by applying the data of each components and life cycle stages collected from statistics and literature surveys to the Japanese life cycle inventory database. The emissions differ by the assumptions made; therefore a sensitivity analysis is also carried out to understand the potential variation of the CO2 emissions. The result indicates that about 35-42% CO2 reduction can be expected for a V2H system in comparison with the conventional system. Since the main contributors to CO2 emissions of both systems are dwelling, residential house construction, vehicle cycle and fuel cycle stages, these stages should be included in the system boundary of V2H system and it is important to select and design the appropriate components of these stages to assure the environmental merits of V2H system in terms of life cycle CO2 reduction.

ACS Style

Yuki Kudoh; Ryoko Motose; Kiyotaka Tahara; Yutaka Genchi; Kudoh Y.; Motose R.. A potential CO2 reduction of vehicle to home system from life cycle perspective. 2013 World Electric Vehicle Symposium and Exhibition (EVS27) 2013, 1 -10.

AMA Style

Yuki Kudoh, Ryoko Motose, Kiyotaka Tahara, Yutaka Genchi, Kudoh Y., Motose R.. A potential CO2 reduction of vehicle to home system from life cycle perspective. 2013 World Electric Vehicle Symposium and Exhibition (EVS27). 2013; ():1-10.

Chicago/Turabian Style

Yuki Kudoh; Ryoko Motose; Kiyotaka Tahara; Yutaka Genchi; Kudoh Y.; Motose R.. 2013. "A potential CO2 reduction of vehicle to home system from life cycle perspective." 2013 World Electric Vehicle Symposium and Exhibition (EVS27) , no. : 1-10.

Journal article
Published: 27 August 2013 in Global Environmental Change
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The primary motivation for the vehicle replacement schemes that were implemented in many countries was to encourage the purchase of new cars. The basic assumption of these schemes was that these acquisitions would benefit both the economy and the environment as older and less fuel-efficient cars were scrapped and replaced with more fuel-efficient models. In this article, we present a new environmental impact assessment method for assessing the effectiveness of scrappage schemes for reducing CO2 emissions taking into account the rebound effect, driving behavior for older versus new cars and entire lifecycle emissions for during the manufacturing processes of new cars. The assessment of the Japanese scrappage scheme shows that CO2 emissions would only decrease if users of the scheme retained their new gasoline passenger vehicles for at least 4.7 years. When vehicle replacements were restricted to hybrid cars, the reduction in CO2 achieved by the scheme would be 6–8.5 times higher than the emissions resulting from a scheme involving standard, gasoline passenger vehicles. Cost–benefit analysis, based on the emission reduction potential, showed that the scheme was very costly. Sensitivity analysis showed that the Japanese government failed to determine the optimum, or target, car age for scrapping old cars in the scheme. Specifically, scrapping cars aged 13 years and over did not maximize the environmental benefits of the scheme. Consequently, modifying this policy to include a reduction in new car subsidies, focused funding for fuel-efficient cars, and modifying the target car age, would increase environmental benefits.

ACS Style

Shigemi Kagawa; Klaus Hubacek; Keisuke Nansai; Minori Kataoka; Shunsuke Managi; Sangwon Suh; Yuki Kudoh. Better cars or older cars?: Assessing CO2 emission reduction potential of passenger vehicle replacement programs. Global Environmental Change 2013, 23, 1807 -1818.

AMA Style

Shigemi Kagawa, Klaus Hubacek, Keisuke Nansai, Minori Kataoka, Shunsuke Managi, Sangwon Suh, Yuki Kudoh. Better cars or older cars?: Assessing CO2 emission reduction potential of passenger vehicle replacement programs. Global Environmental Change. 2013; 23 (6):1807-1818.

Chicago/Turabian Style

Shigemi Kagawa; Klaus Hubacek; Keisuke Nansai; Minori Kataoka; Shunsuke Managi; Sangwon Suh; Yuki Kudoh. 2013. "Better cars or older cars?: Assessing CO2 emission reduction potential of passenger vehicle replacement programs." Global Environmental Change 23, no. 6: 1807-1818.

Journal article
Published: 01 January 2013 in Journal of the Japan Institute of Energy
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ACS Style

Masahiro Tsurugai; Aya Heiho; Yuki Kudoh; Hiroki Hondo. Environmental effects associated with the use of waste biomass: A Case Study of the Miura Biomass Center. Journal of the Japan Institute of Energy 2013, 92, 994 -1005.

AMA Style

Masahiro Tsurugai, Aya Heiho, Yuki Kudoh, Hiroki Hondo. Environmental effects associated with the use of waste biomass: A Case Study of the Miura Biomass Center. Journal of the Japan Institute of Energy. 2013; 92 (10):994-1005.

Chicago/Turabian Style

Masahiro Tsurugai; Aya Heiho; Yuki Kudoh; Hiroki Hondo. 2013. "Environmental effects associated with the use of waste biomass: A Case Study of the Miura Biomass Center." Journal of the Japan Institute of Energy 92, no. 10: 994-1005.