Potential of Drastic Improvement of Energy Efficiency in Japan

摘要

This research has estimated the potential of drastic improvement of energy efficiency in Japan by classifying the end use services such as transport, food, heating and cooling, power, access to information and lighting. We made tables of potential improvement factors on each fields and has quantified the improvement potential in Japan by 2050. The improvement potential by using existing technology is 31.6% and the improving potential by using the future technology based on theoretical efficiency limit by referring a research result of Cullen and Allwood of Cambridge University is 74.8%. Introduction of effective policy measures to improve energy efficiency not only for industry sector but for household and commercial sector etc. should be explored more.