- New Year Greeting : With the commencement of our next fifty years / Shinji WAKAO (President of JSES)
- Prefatory note : How to conduct research / KazuhikoKATO
- JSES 50th Anniversary Ⅱ
- Purpose of this feature / Mika YOSHINAGA
- Report of 2025 JSES Annual Conference, the 50th Anniversary Special Lecture and Celebration Party / Kazuhiko KATO
- Keynote speech : The Past and Future of Japan Solar Energy Society / Shinji WAKAO
- Joint Symposium of the Regional Decarbonization Subcommittee and the 100%RE Subcommittee
- Accelerating Decarbonization from the Regional Level —Implementation of Cross-Sectoral Package Solutions including Residential Energy Efficiency and Renewable Energy Generation to EVs and V2H / Kenji ITAKA, Atsushi AKISAWA, Masayuki HORIO
- Future Lifestyles Opened by PV and EV: Why Cross-Sector Collaboration is Necessary Now – Overcoming the “Three Walls” to Accelerate Regional Decarbonization – / Motoki TSUJI
- Implementing Local Decarbonization as a Regional Development Strategy
— GX Development: A Case Study of Mutsu City, Aomori, Japan – / Junichi FUJINO
- The Painting Contest : Implementation report of the painting contest / Hiromu KOBAYASHI, Rihito SATO
- The Essay Contest : Record of the Essay Contest / Shinichiro OKE, Akiko TAKAHASHI
- Technical Report
- High-Precision Diagnosis of Degradation and Soiling in Photovoltaic Power Plants Using Machine Learning : Evaluation Through Real-World Deployment / Yutaka MORI, Takuya FUJIMOTO, Shintaro MURAKAMI, Masahiro HARADA
- An Event Report : Participation Report on the 2025 KSES（ Korean Solar Energy Society） Annual Autumn Meeting as an International Exchange with JSES / Hironao MATSUBARA
- Introduction of a Laboratory : Kochi University of Technology, School of Systems Engineering, Architecture and Infrastructure Systems Building and Urban Environment Laboratory
- Technical introduction of corporate members : PV Owner Network, Japan
- My memoirs of the Sunshine Project : Silicon Heterojuncion Solar cells “HIT” invented through Sunshine Project / Mikio TAGUCHI
- Monologue from Board Members : Earth Rise / Shigeo YOSHIDA
- News from JSES Committee
- JSES Report
- JSES Announcement
