【Participants】33 members

【Meeting type】Zoom

Hybrid exprimental house in Tegal: Now under construction of wooden portions, in which we very much appreciated SFC/YKK/AGC’s big efforts.

Springer Book: Submission of the first draft by 23rd Nov. 2025, that we are planning to try to propose the postpone for several months.

JST final report(revision): Submission of the revised draft of the final report by 12th Nov. 2025, for which the revisions/updates to be requested, soon.

JST final presentation (Nov. 26th 2025, Tokyo): Explained the overall information. Thanks to the participations from the related Universities.

AIJ 2026 will be at Yasuda Women’s University in Hiroshima: We also would like to have the Final Organized Session in Hiroshima.

Seminar in Environmental Engineering on Sep.10th in AIJ 2026(Hiroshima): We would like to make the final report of DeLCA project.

Overall of conferences (Indoor Air 2026 and AIVC 2926) were also introduced.

The latest Reserach Progress and plans were explained in all areas. Takata-san’s (HU) paper on lifestyle classification has been accepted by JAABE (in press).

IEQ conference in Montreal, Canada held in Sep. 2025 was introduced, in which Kondo-san (Waseda) made a nice presentation.

【Participants】37 members including 8 Indian delegates (4 from IIT Kharagpur (Dr. Shankha and three students), and 4 from NIT Rourkela (Dr Roshmi and three students)) under Sakura Science Program (JST).

【Participants】28 members

【Meeting type】Zoom

HU invited Professor emeritus Mochida (Tohoku Univ.) to have his supervision on Climate project during June 5th-6th, which was very fruitful opportunity.

Hybrid experimental house in Tegal: Making Ground Floor was almost completed with portions of concrete and then will move to wooden portions.

Springer Book: The writing to be confirmed among the authors mainly in Summer towards submission of the first draft by 23rd Nov. 2025.

JST reports (completed by May End): The JST annual 2024 report has already been confirmed by JST and can be disclosed to all related Universities. The 1st final report has been approved by Prof. Shikazono and will be sent to the SATREPS reviewers.

DeLCA Seminar in HU: 8th (pm for Seminar) – 9th ( for excursion) August 2025 was proposed in case the eight India members ( 2 staffs & 6 students) from Sakura science can join in person. (We are still waiting for the approval from Sakura science, which will be informed as soon as we can receive the conclusion.)

UNEP/ACE Passive Cooling Advisory Group: Prof. Kubota, Dr. Ariel, Andhang-san(YKK AP R&D) are joing together with JICA members in this Group. The kick off meeting to be on June 30th.

The latest Reserach Progress and plans were explained in all areas.

【Participants】25 members

【Meeting type】Zoom

Hybrid experimental house in Tegal: The construction was started from Jan. 2025 (Pilings were completed, then will move to making the Ground Floor).

Springer Book: The writing to be mainly in Summer towards submission of the first draft by 23rd Nov. 2025.

Deadlines of JST reports (by 30th May 2025): Annual progress 2024 and the Final progress report (1st draft). The final progress report to be used in JST final presentation on 26th Nov. 2025 (14:00-16:30) in JST Tokyo.

DeLCA Seminar in HU: 8th (pm for Seminar) – 9th ( for excursion) August 2025 was proposed in case the eight India members ( 2 staffs & 6 students) from Sakura science can join in person. (Approval or not for Sakura science will be in the middle of June 2025, if not, the General meeting by on-line as usual)

Project evaluation visit by Prof. Shikazono: 1st-7th Sep. 2025 including JCC (1st-4th Sep.) in which Prof. Kubota will visit to Indonesia. Any other opportunities to visit to Indonesia might be around Feb.-Mar. 2026 for the Completion of Hybrid experimental house in Tegal.

The latest Reserach Progress and plans were explained in all areas.

On January 17th, 2025, we held the ground breaking for Hybrid experimental house in Tegal with around 100 participants, including VIPs from Indonesian Government such as Vice Minister of PU, Director General for Human Settlements, and Chief Representative of JICA Indonesia office.

【Participants】28 members

【Meeting type】Zoom

Prof. Kubota and Dr. Ariel were invited to the Seminar on Sustainable Housing, Building and Cities held by JUBH at Jakarta during Jan. 14-15th, which was a big event with several VIPs such as from Government.

Hybrid experimental house in Tegal: The Groundbreaking was held on Jan. 17th, which was also a good event with several VIPs such as PU Deputy Minister who made a comment that DeLCA project was one of commitment of Indonesian Goverment, which was published in several News Papers/Web Sites. The construction period was updated to Jan.2025 to Jan.-Feb.2026.

Springer Book: Approved and the kick-off meeting was held on Feb.19th, then the timelines of actions to be announced from the Editor.

AIJ organized session for 2025 conference in Sep. at Kyushu Univ.: Abstruct (by next week 28th) and Full paper (by Apr. 2nd) under Low-Carbon Affordable Houses in the Global South towards Paris Agreement.

UNEP Passive cooling action group: Established last year to set the Guidelines for Global South/ASEAN. DeLCA project was found fully matching to this UN action and was introduced by JICA. Prof. Kubota will join in the ASEAN Passive Cooling Guideline as an advisort board, and would like to invite other project members from Universities and Companies.

The latest Reserach Progress and plans were explained in all areas.

【Participants】36 members

【Meeting type】Zoom

Hybrid experimental house in Tegal :

Please refer to the Wooden Structural Proposal (S.F.) in Google Drive.

The construction period was updated to Jan. to Dec.2025.

Visit of Kubota-sensei to Indonesia (Jan. 13^th -19^th/2025) :

Please refer to the details in Google Drive for Housing exhibition + seminar in Jakarta (14^th-15^th) held by Japan & Indonesia Governments, in which Ariel-san & Kubota-sensei were invited to introduce DeLCA project.

Ground Breaking for Hybrid experimental house in Tegal is planning to be held on Jan. 17^th/2025 based on the conclusion of the contracts during Jan. 15^th-16^th /2025. So, please join in Ground Breaking, if possible.

Springer Book proposal :

Please see the Guidelines for Book Proposals in Google Drive, and writings during next year by all the members are appreciated, for which the due date to be March/2026 (preferable by the end of 2025), and the publishing to be in June/2026 (subject to the contract).

Increase VAT (from 11% to 12%) is planned from next year.

AIJ conference next year in Kyushu University during Sep. 9^th to 12^th/2025 the synopsis needs to be submitted by April/2025.

The latest Reserach Progress and plans were explained in all areas.