Discussions were made to facilitate exchanging ideas and opinions among speakers and participants as for various issues relevant to the theme to work out the reasonable solutions in the future for the respective countries. Key points of the discussions were as follows:
・Current status of and future direction of BEC in the individual ASEAN countries.
・History of JBEC, especially in compliance with the standard becoming mandatory.
・New methodologies for evaluating the primary energy consumption of buildings based on the purpose of the buildings, e.g. offices, hotels and stores etc.
・How operation management in buildings works in Japan in terms of energy efficiency.
・Basic idea of the benchmark system of building energy efficiency and the current status of the benchmark system in Japan.
・Efforts being done by SEforALL to improve energy efficiency in the building sector.
Following recommendations for ASEAN member states were also made by experts based on the Japan’s experience.
・Coordinated actions of the central government covering the minimum requirements and the local governments promoting them helps building owners attain the high level of compliance to BEC.
・One of the key indices for building energy efficiency is Primary Energy Consumption. In many ASEAN countries, however, electricity is the major source of energy, where indices other than Primary Energy Consumption may have been used. Therefore, the way of establishing and executing BEC can be different country by country.
・BEC does not have to cover all the aspects (phases of from design to operation, building facilities, envelopes, purpose of buildings, etc.) from the beginning. It can be expanded in a stepwise manner from the minimum level to the comprehensive one. Besides, compliance with BEC can be started as voluntary and changed to mandatory later. In case of Japan, it took about 40 years to reach the present status.
・For countries like Thailand facing a problem in execution of BEC caused by lack of coordination among related ministries, Japan’s way of solving the problem can serve as a useful reference. In Japan, two concerned ministries are collaborating effectively on BEE in a way that clarifies their responsibilities. Specifically, MLITT has a responsibility for BEE in the designing and construction phases, while METI has its responsibility in the operation phase.