Total site energy improvement using R-curve concept

► The novel developed R-curve indicates the optimal efficiency, costs and emissions of the utility system of a total site. ► Introducing TAC curve to obtain total annual cost of the utility system in each R-ratio value. ► Introducing EM curve to determine emission value of each pollutant in the utility system, in each R-ratio value. ► Improving the utility system of a total site, considering the operational, economical and environmental points of view.