|
Affiliation |
Green Transformation Research Center |
|
Title |
Associate Professor |
|
External Link |
|
OTA Yasuyuki
|
|
|
Research Areas 【 display / non-display 】
-
Energy Engineering / Earth resource engineering, Energy sciences / 太陽光発電、P2G
Papers 【 display / non-display 】
-
Effect of Water Quality Produced at Each Stage of the Seawater Desalination Process on Hydrogen Production in Water Electrolysis Reviewed
Pyae Pyae Shwe Sin,Tomohiro Yadai,Hiroshi Yamamura,Yoshihiro Suzuki,Yasuyuki Ota, Kensuke Nishioka
Applied Sciences (Switzerland) 16 ( 5 ) 2622 2026.3
Language：English Publishing type：Research paper (scientific journal)
-
Solar Electric Vehicles as Energy Sources in Disaster Zones: Quantified Model on Social Science Dynamics Reviewed
Kenji Araki,Keiichi Komoto,Makoto Tanaka,Yasuyuki Ota, Kensuke Nishioka
Applied Sciences (Switzerland) 16 ( 5 ) 2566 2026.3
Language：English Publishing type：Research paper (scientific journal)
-
A High-Speed 4-Tensor Computational Framework for the Solar Energy Prediction of Curved HAPS Photovoltaic Modules Reviewed
Naoki Mukai,Yasuyuki Ota,Kensuke Nishioka,Yoshiki Takayanagi, Kenji Araki
Applied Sciences (Switzerland) 16 ( 5 ) 2183 2026.2
Language：English Publishing type：Research paper (scientific journal)
-
Our recent approaches for Si tandem solar cell modules for solar-powered vehicles Reviewed
Masafumi Yamaguchi, Kyotaro Nakamura, Ryo Ozaki, Nobuaki Kojima, Yoshio Ohshita, Tatsuya Takamoto, Hiroyuki Juso, Yasuyuki Ota, Kenji Araki, Kensuke Nishioka, Shinya Iwasaki, Takashi Nakado, Takashi Mabuchi, Kenichi Okumur
Solar Energy Materials and Solar Cells 297 2025.12
Language：English Publishing type：Research paper (scientific journal) Publisher：Solar Energy Materials and Solar Cells
Solar-powered electric vehicle (Solar-EV) applications are very attractive for CO<inf>2</inf> emission reduction and creation of new market. The Si tandem solar cells are very promising as VIPV (vehicle integrated photovoltaic) modules because of high-efficiency and low-cost potential. This paper presents our recent results for new world record efficiency (33.7 %) mechanically stacked 4-terminal InGaP/GaAs/Si 3-junction tandem solar cell module with an area of 775 cm<sup>2</sup>. This paper also presents loss analytical results for losses of various solar cell modules and estimation of solar-EV installed with various solar cell modules such as III-V/Si 3-junction, perovskite/Si 2-junction tandem cell modules, Si, GaAs, CdTe, and perovskite single-junction solar cell modules. Under average solar irradiation with 4 kWh/m<sup>2/</sup>day, solar-EV installed with our 3-junction Si tandem solar cell modules have longer driving range potential of about 28 km/day compared to 25.4 km/day, 21.6 km/day and 15.9 km/day for solar-EV installed with perovskite/Si 2-junction, Si and perovskite single-junction solar cell modules. Regarding perovskite and perovskite/Si tandem solar cell modules, development of high-efficiency, highly reliable and large-area modules is suggested to be essential for vehicle applications. In this paper, thermal degradation rates for perovskite and perovskite/Si tandem solar cell modules were compared with those of Si, III-V multi-junction and III-V/Si tandem solar cell modules.
-
Development of total energy simulator for high altitude platform station operation Reviewed
Naoki Mukai, Kenji Araki, Kensuke Nishioka, Kohei Okada, Yasuyuki Ota
Solar Energy Materials and Solar Cells 296 2025.11
Authorship：Last author, Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Solar Energy Materials and Solar Cells
The rise of sustainable communication networks marks a transformative era in connecting our world, and non-terrestrial networks (NTN), especially high-altitude platform stations (HAPS), are at the forefront of this revolution. These innovative systems are not only vital for emergency communications and reaching remote areas, but they also embody our collective commitment to a sustainable and resilient future. Our groundbreaking study introduces an advanced energy simulation algorithm for HAPS, meticulously accounting for environmental factors that influence photovoltaic power generation. By modeling energy consumption across various flight phases, our findings reveal that solar energy production varies with time and location, with westward evening flights demonstrating peak efficiency. A comprehensive three-day simulation near Miyazaki Airport validates the extraordinary potential of HAPS, inspiring confidence in their practical application. Contrary to conventional beliefs that PV outputs remain stable at high altitudes due to minimal cloud cover, our measurements uncovered remarkable fluctuations shaped by curved-shaped behavior. We have successfully modeled this unusual phenomenon using sophisticated tensor-vector computation, paving the way for more reliable and efficient PV system designs.
Books 【 display / non-display 】
-
2024年度光技術動向調査報告書
太田 靖之（ Role： Sole author , 5.7.1.3 車載）
一般社団法人光産業技術振興協会 2025.3
Language：Japanese Book type：Report
Presentations 【 display / non-display 】
-
PV on Heavy Duty Vehicles (HDVS): Monitoring 200 trucks with PVs International conference
Kenji Araki, Takumi Konuma, Makoto Tanaka, Yasuyuki Ota, Shiro Sakamoto, Kensuke Nishioka
36th International Photovoltaic Science and Engineering Conference 2025.11.10
Event date： 2025.11.9 - 2025.11.14
Language：English Presentation type：Oral presentation (general)
-
Can vibration resonance cause critical cracks or fatigue in c-Si modules? — Non-contact measurement methods and findings International conference
Kenji Araki, Ryota Tsuji, Yasuyuki Ota, Daisuke Sato, Tatsuya Takamoto, Kensuke Nishioka
36th International Photovoltaic Science and Engineering Conference 2025.11.11
Event date： 2025.11.9 - 2025.11.14
Language：English Presentation type：Oral presentation (general)
-
A real-time simulation of power generation for automotive solar cells using digital twin technology International conference
Nobuteru Takeshita, Naoki Mukai, Kenji Araki, Kensuke Nishioka, Shinya Iwasaki, Yohei Hosokawa, Satoru Kameyama, Yasuyuki Ota
36th International Photovoltaic Science and Engineering Conference 2025.11.10
Event date： 2025.11.9 - 2025.11.14
Language：English Presentation type：Poster presentation
-
Prediction of Vehicle Integrated Photovoltaics Potential Under Varying Shading Conditions in Asian region International conference
Su Yi Mon, Yasuyui Ota
36th International Photovoltaic Science and Engineering Conference 2025.11.10
Event date： 2025.11.9 - 2025.11.14
Language：English Presentation type：Oral presentation (general)
-
Internal Inspection of 3D-Curved PV Modules Using Non-Destructive Techniques International conference
Kaiki Matsubayashi, Kenji Araki, Daisuke Sato, Yasuyuki Ota, Kensuke Nishioka
42nd European Photovoltaic Solar Energy Conference and Exhibition 2025.9.25
Event date： 2025.9.22 - 2025.9.26
Language：English Presentation type：Poster presentation
Awards 【 display / non-display 】
-
Best Oral Presentation
2025.11 36th International Photovoltaic Science and Engineering Conference Can vibration resonance cause critical cracks or fatigue in c-Si modules? -- Non-contact measurement methods and findings
Kenji Araki, Ryota Tsuji, Yasuyuki Ota, Daisuke Sato, Tatsuya Takamoto, Kensuke Nishioka
Award type：Award from international society, conference, symposium, etc.
-
Best Poster Presentation
2025.11 36th International Photovoltaic Science and Engineering Conference A real-time simulation of power generation for automotive solar cells using digital twin technology
Nobuteru Takeshita, Naoki Mukai, Kenji Araki, Kensuke Nishioka, Shinya Iwasaki, Yohei Hosokawa, Satoru Kameyama, Yasuyuki Ota
Award type：Award from international society, conference, symposium, etc.
-
学術研究者支援奨励賞
2025.3 株式会社九電工 高効率Power-to-Gasシステムによる災害対応型エネルギーマネジメントシステムの構築
太田靖之
-
Oral Presentation Awards
2024.11 35th International Photovoltaic Science and Engineering Conference PV for HAPS(High Altitude Platform): Tensor-Matrix-based modeling and measurement validation
Kenji Araki, Kohei Okada, Naoki Mukai, Shota Matsushita, Seiichi Kiyama, Yasuyuki Ota, Koji Nishiyama, Kensuke Nishioka
Award type：Award from international society, conference, symposium, etc.
-
Poster Awards
2024.11 35th International Photovoltaic Science and Engineering Conference Rapid Generation of Solar Spectrum with Sensor Photodiode Arrays
Kaiki Matsubayashi, Kenji Araki, Yasuyuki Ota, Kensuke Nishioka
Award type：Award from international society, conference, symposium, etc.
Grant-in-Aid for Scientific Research 【 display / non-display 】
-
太陽光由来メタン合成システムのシステム最適化および製造コスト削減
Grant number：22K05008 2022.04 - 2025.03
独立行政法人日本学術振興会 科学研究費基金 基盤研究(C)
Authorship：Principal investigator
-
システム最適化した高効率集光型太陽電池水素生成機構の高精度コスト試算モデルの構築
Grant number：18K05015 2018 - 2021.03
科学研究費補助金 基盤研究(C)
Authorship：Principal investigator