Abstract
The monthly energy consumption in the residential sector of seven cities in Kansai and Shikoku regions were estimated by using statistical data on family income and expenditures and retail price surveys provided by the statistical bureau of Japan. The estimated gas or electricity consumption in Osaka, Wakayama, and Kochi was compared with the statistical data provided by the corresponding local government units to validate the estimation procedure. After the validation, the authors investigated the influence of air temperature on the estimated and validated energy consumption. Based on the regression analyses, the monthly electricity consumption per household in each is expressed as a quadratic function or a couple of linear functions of air temperature. Total gas consumption and kerosene consumption are expressed as linear and quadratic functions respectively.
