The potential of exergy analysis for environment, ecology and sustainable development implications are reviewed in this study. There is perfect relationship between environment, ecology and sustainable development. If a proper balance is maintained among these three aspects then exergy for the welfare of human being is obtained. Efficient energy use which requires exergy analysis is a key solution to the environmental problems. A primary aim of minimizing the environmental impact is to increase the efficiency and decrease the related overall environmental impacts such as global warming, ozone depletion, and acid rain. This study has been written with a view to draw attention and to examine the range of views for integration of exergy for environment, ecology and sustainable development. Much of the information presented in this study is basically to acquire an understanding of exergy relations with environment, ecology and sustainable development. This study will be useful for those involved in exergy activities and planning. (C) 2015 Elsevier Ltd. All rights reserved.