(1) Participants could effectively and efficiently learn about ZEB promotion and best practices in Japan through lectures, field visits, and activities aimed at international standardization of the ZEB family concept. In particular, in the field visits, participants learned about the efforts of leading companies in terms of both new construction and renovation. The lecture on the present status of the benchmark system that was started last year (2017) has successfully added timely and valuable information, which was especially beneficial to countries trying to introduce the system.
(2) Participants formed two groups for further discussion as follows;
・setting a reference value (baseline) for calculating the energy conservation rate is to be done by simulation, in accordance with the building code, or by the data collection method (taking the average of existing ones).
・specific mitigation was proposed for the reference value regarding various types of ZEB.
I.e. ZEB oriented 30%, ZEB ready 40% and nearly ZEB 60%
・the refinement of evaluation criteria and the BOJ procedure
(3) Participants learned much that activities of the “ASEAN ZEB Promotion Working Group” under JASE-W could influence the activities of AMSs, and robust advice from them was found to be useful for the promotion of ZEB
(4) On the basis of METI’s (Ministry of Economy, Trade and Industry, Japan) instruction, ECCJ is going to continue this workshop in future for further progress in the EE&C of buildings in the ASEAN region.