Development and analysis of DECC (data-base for energy consumption of commercial building): Part 1 Development on basic database of DECC

Abstract

The number of commercial buildings in Japan is estimated over 10 million and these buildings are considered to emit large amounts of CO 2 . However, environmental load for commercial buildings has not been fully researched and those researches done in the past have focused on limited subjects or areas in Japan. This research aims to develop a nationwide database on CO 2 emission and water usage of commercial buildings which can be used by researchers, policy makers and business people. This paper reports the outline of this database and the specific primary energy consumption, which was developed centrally by 33 universities. The data was collected through questionnaire surveys which was conducted between 2007 and 2009, and a total of 40,085 building data was collected, of which 27,902 were disclosed. The collected data was divided into 23 uses and primary energy consumption intensity for the disclosed database were calculated by areas, gloss floor area and year of completion.