Abstract

Tokyo Metropolitan Government planned a residential area with sixteen high-performance solar houses, for the purpose of reducing carbon dioxide emitted from houses in Tokyo. We collected data on energy consumption and room temperature for two and a half years and conducted a questionnaire survey on the awareness and lifestyle of the residents to investigate the performance of the houses. As a result, it was found that the energy consumption of solar houses is about half of the ordinary houses and the carbon dioxide emissions is over 75% lesser than the ordinary houses considering the contribution of PV generation sold. Also the issues for zero energy houses (ZEH) are clarified based on the characteristics of each type of house.

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