エネルギー政策研究グループ

気候変動は私たちの時代の最大の課題です。エネルギー問題は特に複雑で複数の分野に
またがっています。
エネルギー政策研究グループでは、高い志と多様なバックグラウンドを持った学生が、
現代社会が直面している課題をさまざまな方法で解決するために貢献しています。
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1.  エネルギー政策調査
電力、都市のモビリティ、空間計画の3つのセクターには、金融、税制、貿易政策、イノベーション、
適応策など、脱炭素化のための多くの政策の不整合が残されています。私たちは、国際・国内の政策レビューや各種モデル分析を実施することで、新技術の規制を調整し、脱炭素化を加速させることを提案します。
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Proposal for grid management reform for Japan.

References; Tatsuya Wakeyama, Assessment on Interregional Grid Management for Renewable Energy Integration in Japan, 15th Wind Integration Workshop, Austria, November 2016

 

2.  電力システムモデル分析
将来の100%再生可能エネルギー電力システムの全体像を描くために、GIS、容量拡張モデル、経済負荷配分モデル、ユニットコミットメントモデル、市場モデルとグリッドモデルなどを使用して、2030年から2050年までの高比率の再生可能エネルギー統合シナリオのモデル分析を行います。
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International collaboration: Study on integrating renewables into the Japanese power grid by 2030.

References; Rena Kuwahata, Peter Merk, Tatsuya Wakeyama, Dimitri Pescia, Steffen Rabe, Shota Ichimura, Renewables integration grid study for the 2030 Japanese power system, IET Renewable Power Generation

 

3.  将来のエネルギー技術とシステム
限界費用ゼロの再生可能エネルギーが支配的な将来のエネルギーシステムでは、グリッド上に多くのプロシューマーが存在し、エネルギーの新しい取引、需給調整、決済、および消費が期待されています。工学、経済学、コンピューターサイエンス、人工知能、数理社会学を用いた学際的アプローチにより、将来のエネルギー技術とグリッドを提案します。
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Jinesh Mohan

IGP-C (MEXT Scholarship), Energy Course, M1 student

Modeling of the solar power output forecast system for Hyderabad Railway Station (India) using Transfer Learning and Hidden Markov Model

Development of community microgrid in urban residential area: Case study of Ulaanbaatar, Mongolia

Tumurbaatar Uyanga, Energy Course M2 student, IGPC (March 2022, Graduate)

Electrical power microgrids (see fig.) have been mainly seen as a solution for rural electrification integrating more renewable energy, and offering reliable power supply, however, in recent years, it’s getting more attention in urban areas as well. Especially, in cities in developing country, various issues are entangled with energy issue, such as energy security, diversification, environmental and social problems etc. In this research, the microgrid development will be studied as an alternative solution to tackle various issues in Ulaanbaatar, Mongolia.

Having rich renewable energy resource, Mongolian energy system is heavily dependent coal which causes

deadly air pollution yet imports 20% of electricity demand from Russia. Also, both the generation and

transmission facility are exceeded their lifespan, thus requiring system upgrade in near future, to supply

reliable, sustainable, and affordable electricity and heat to its increasing population. Through this research,

the appropriate technology combination suited for local demand characteristics will be evaluated using

Homer Pro software simulation and will be compared to previous projects done by the government in terms

of economic and environmental impact. See fig. below source: Microgrid, Source: Enova Energy

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Hu Dongzi

IGP-C, Energy Course, M2 student

V2G Integration on multi-energy source microgrid in Xi’an China considering the economic return benefits

In China, the transportation sector consumes a large proportion of total energy demand but also is the main source of carbon dioxide emission. Transportation consumed more than 14 million terajoule and emitted 901Mt carbon dioxide in 2019. What’s worse, vehicles accounted for 42% of the total consumption of crude oil and more than 80% of refined oil. In order to achieve zero emission target in China as soon as possible, Integrated EV to a multi-energy source microgrid can be a good solution(see figure below). From energy generation transformation aspect, Microgrid uses distributed clean energy which is a good solution of improper energy usage and solves the problem of over dependent on traditional energy sources. From the transportation aspect, EV is a kind of new clean energy vehicle which undoubtedly reduces harmful gas emissions. Combined these two part in the research and then analysis their economic and environmental return can speed up the sustainable development of society by persuading more EV cars’ owners join in the interaction between cars and grid.
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Zhang Rui

IGP-C, Energy Course, D1 student (Wakeyama Lab)

Government agents’ drivers in municipal solid waste management systems: a case study in Yokohama (Japan) and Suzhou (China)

There is an increased interest in carbon-negative processes for the treatment of municipal solid wastes during past years. To achieve the carbon-neutral target, on-site renewable energy generation will be one of the key prerequisites, especially for East Asian (EA) countries. However, countries like Japan and China still cannot abandon theirs heavily reliant on the import of fossil fuels. Specifically, China experienced both rapid economic maturation and large-scale urbanization, and one obvious problem aroused by urbanization is waste disposal, followed by the increasing Municipal Solid Waste (MSW). Therefore, considering the gap between the current situation and the final goal, Waste to Energy (WtE) conversion technologies and policies are urgently needed in EA countries. In this work, we will mainly focus on techno-econometric analysis while aiming at conducting a comparative case study between two cities: Suzhou and Yokohama. For methodology, a simulation model will be used in this study to visualize the analysis and the results will give recommendations on policy decisions practically.

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