Evaluation of Energy Efficiency with a Viewpoint to Urban Sustainable Development

摘要

This paper proposes a quantitative method to evaluate the energy efficiency of individual consumption behaviors. Energy consumption is determined by consumption of three kinds of goods: composite goods, car trips and mass transit trips. A model is developed to estimate the individual daily consumption of goods on the maximum utility level. Considering a consistency relationship between the utility level and energy consumption, energy efficiency index is developed to evaluate energy efficiency on different utility levels. We applied this method into a case study in Kumamoto City, Japan. High energy efficiency is found in populated urban area and places with high public transport accessibility. This founding gives robust support for urban sustainable development.