The mining industry has acknowledged the need for an effective method and platform to benchmark comminution energy intensity and motivate action to improve productivity and earnings. The familiar cost-curve format has been used to develop an energy curve report that compares the comminution energy intensity of a specific mine with that of other operations. The energy curve program allows operators to establish their current operating efficiency. It is designed to motivate the adoption of best practice by creating a competitive incentive to move ‘down’the curve towards a more cost-efficient position by improving energy productivity. The energy curve is populated from a database covering a significant proportion of gold, copper, lead, zinc, and silver producers. CEEC International is supporting the industry’s use of this program by making it available to the global industry; in line with their role as an industry-friendly organization. This paper will focus on the use of the comminution energy intensity curves for the characterization of circuit efficiency and as a tool for increasing circuit energy productivity. Five interchangeable metrics have been used, including kWh/t, Bond work index, and sizespecific energy. The generation of new-75 μm material is used to calculate the sizespecific energy (SSE,) which has been previously been demonstrated to be a practical and fair measure of energy efficiency. The SSE is calculated across individual items of equipment, sections of a circuit, or the full circuit, enabling the benchmarking and comparison of comminution equipment. The SSE intensity energy curve is used to identify circuit inefficiencies at two mines; reinforced by more detailed circuit analysis. A methodology for assessing performance using energy curves and the calculation of SSE energy has been expanded in this paper. These methodologies clearly show the value that can be gained from improving energy productivity across the circuit.