To examine present situation of energy consumption, an extensive survey was carried out as a projectof Architectural Institute of Japan (AIJ). More than 80 houses that were typical to the present Japanesehousing sector were chosen nationwide. As a part of this project, we measured the energyconsumption of 13 houses in Kansai region. The annual energy consumption in these13 houses rangesfrom 30 to 70 GJ from April 2003 to March 2004.
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