The aim of energy analysis is to quantify the energy flows inherent in all systems. As applied to economic systems, it is concerned with the energy flows inherent in the production of goods and services. The claims made for the policy utility of that energy flow information, however, vary across a wide spectrum. The papers included in this symposium volume represent and reflect that spectrum of claims. In setting the stage for these papers, this intro-duction will sketch the areas of agreement and disagreement around which the energy analysis debate revolves. In delineating the nature and...