The twentieth and twenty-first centuries have dawned with their unique problems that have been brewing for many decades and slowly consuming the environment, causing it to deteriorate at a very rapid rate. In recent years energy efficiency has significantly gained research interest in stature, it is necessary to alter the way that energy is utilized. Energy-intensive sector such as manufacturing industry in South Africa can provide a competitive advantage on a national scale and could gain cost advantage against global competitors, if the energy productivity demand improves across the economy through lean energy-efficient opportunity in manufacturing operations and fourth industrial revolution. The need for energy efficient manufacturing industries requires the understanding of different customer’s energy demand and ability to fulfill these demands while maintaining the economies of scale at the same time. These can be achieved by segmenting manufacturing into various sectors to focus on high intensive energy users, and then gradually give attention to the others. The paper identified and investigated the existing gap in the train manufacturing plant equipment lists through determination of equipment energy demand profile, and presents an analysis of the proposed energy efficiency initiative using 80-20 Pareto analysis principle to analyze the equipment lists.