An End-Use Energy Demand Monitoring Project for Estimating the Potential of Energy Savings in the Residential Sector

This paper describes an extensive monitoring project which collected end-use electric power, city gas consumption and ambient and room temperature measuring at thirty minute intervals over one year for 40 residential houses in a newly developed town in the suburb of Kyoto and Nara. The primary purpose of this project is to estimate the potential for energy saving and to find effective ways to achieve energy saving in the residential sector in Japan. Better understanding ofthe nature ofenergy demand in residential houses is essential in order to identify savings opportunities at the end use level. The monitoring system used was completely automatic, and the data for the period from Oct. 1998 to Nov. 1999 have been acquired successfully. The measured data were separated into end-use purposes such as the demand for space cooling and heating, hot water and cooking. Daily load curves for each end-use have been estimated from the measured data. In this paper, the project will be described in detail, and the present state of end-use energy demand in the relatively new typical residential houses in Kansai region of Japan, will be described.