A number of strategies were identified in chapter 4 that have been successfully used to optimize the steam and power distributions within the energy systems of several industrial plants. Chapter 5 will be devoted to reviewing how these techniques were applied to a number of actual cases. In almost every case, existing plant data was studied to estimate the magnitude of the savings that might be realized from the application of an optimization strategy. In the course of these studies, there was usually something unique to be learned about the intrinsic behavior of the plant or system that may have a more general application. Attention will be drawn to these insights where appropriate.