- Prefatory note : Now is the time to promote solar power generation ! / Yukinori KUWANO

- JSES 50th Anniversary : Future Prospects of Solar Energy for a Sustainable Society
- 〈A greeting of the president〉On the Occasion of the 50th Anniversary of the JSES‘s Founding / Shinji WAKAO
- 〈Congratulatory Messages from Past Chairman and others〉/ Iwane FUJII, Izumi USHIYAMA, Yoshiyuki ISHIHARA, Mitsuhiro UDAGAWA, Hironori ARAKAWA, Yoshihisa TAWADA, Nobuyuki SUNAGA, Kenro MITSUDA, Atsushi AKISAWA, Shigekazu KAWAGOE
- 〈From each section〉
- Solar Thermal : Technological Trends and Future Outlook for Air-Collecting Solar Thermal Utilization / Hyunwoo ROH
- Solar Thermal : Utilization of High-temperature Concentrated Solar Thermal Energy / Tatsuya KODAMA
- Solar Thermal : Solar heat utilization in solar thermal collectors using liquid / Hitoshi HARA
- Photovoltaic : Harmonization with photovoltaic systems and power grid / Yusuke MIYAMOTO
- Photochemistry and Biomass : A Decade of Photochemistry and Biomass –Reflections and Future Horizons / Akira HORIBATA
- Solar Architecture : The direction solar architecture will take over the next 50 years / Isamu OHTA
- Wind & Hydro : Outlook of Wind-Hydro Divisions / Shigeo YOSHIDA
- 100% RE : Toward the goal of the society with 100% renewable energy– Future perspective of 100% renewable energy section – / Atsushi AKISAWA
- Local CO2 Reduction : Pathways to Regional Decarbonization / Kenji ITAKA
- 〈JSES 50th Anniversary Roundtable discussion〉Challenges for a sustainable society of Japan and expectations for JSES / Jindan CUI, Daisuke SATO, Takahiro TAKAMATSU, Kohei TERASHIMA, Keita MIZUNO, Mika YOSHINAGA
- 〈History of JSES〉A Decade of Progress in the Japan Solar Energy Society
- Research paper
- Consideration of Optimal Design of Natural Exergy Utilization System -Construction of a computational model for a solar heat utilization system and its sensitivity analysis- / Koichi ISAWA, SungKi SONG
- Day-ahead Planning and Shortfall Risk Assessment in the Balancing Market for Solar Power Plants / Jindan CUI, Xue FANG, Bo JIE, Takashi OOZEKI, Yuzuru UEDA
- JSES Report
- Report of JSES 2025 conference for young researchers / Noboru YAMADA
- Introduction of a Laboratory / National Institute of Technology, Nagaoka College, Department of Mechanical Engineering, Energy Laboratory
- My memoirs of the Sunshine Project : Development of grid interconnection techniques for PV power generation, which opened a way to the massive penetration / Hiromu KOBAYASHI
- Monologue from Board Members : Would you like to spend more time in nature? / Hironobu MATSUO
- News from JSES Committee
- JSES Report
- JSES Announcement