Processes that use energy in industry vary depending on the equipment and lines required for the relevant production. Some processes involve high amounts of heat, while others involve high amounts of electricity. In processes with high heat transfer, insulation measures are crucial, while in processes with high electricity consumption, energy efficiency measures specific to the electricity-consuming process component are necessary. In some production methods, different processes (baking-shaping-drying or melting-molding-rolling-annealing, etc.) must be applied sequentially to produce a single product, while in others, similar steps are repeated along different lines. In some processes (as in the glass and paper industries), continuous production or integrated lines are involved. Regardless of the production method, energy efficiency analyses require first considering the process as a whole and then evaluating the stages that make up the process separately. It is essential to evaluate any energy efficiency opportunity identified at any stage of the production chain by considering its effects on the entire chain. If an improvement at a particular workstation/point/area/line will lead to a disruption, a decrease in efficiency, or a negative impact on overall production throughout the entire chain, then this opportunity should be disregarded. However, this possibility is generally not a frequent occurrence. To evaluate a process from an energy efficiency perspective, having expertise in energy issues as well as knowledge of the process is crucial. Ideally, these analyses should be conducted by individuals with expertise in both areas. Furthermore, it is recommended that the "sectoral study guides" developed by EVÇED be used as a guide in these evaluations. Another important aspect is evaluating the process analysis in conjunction with the status of auxiliary systems (steam, fans, pumps, compressed air, motors, electrical systems, etc.). For example, the impact of planned changes to steam or compressed air systems and lines on the process(es) should be examined, and similarly, the potential impact of a process improvement investment on auxiliary systems should be evaluated. Establishing an ISO 50001 Energy Management System in a business is critical for conducting these analyses effectively and accurately identifying potential efficiency focus areas. Analyzing processes in terms of energy loads within the framework of the Pareto principle is a useful approach for identifying priority intervention areas. Establishing the correlation between energy loads and product production quantities, preferably using historical data spanning long periods, and performing single or multiple regression analyses for this purpose, will contribute to the correct structuring of initial steps. Ranking the efficiency opportunities identified after technical analyses – in terms of the added value they will create – will ensure a balance between potential savings and investment costs. The precise interventions to be made to use energy efficiently in a process may vary depending on the type of process and the variety of products. Sometimes the nature of the process may not allow for stopping or reducing production. However, an Energy Management System developed within the framework of ISO 50001 will synchronize production planning with energy management and facilitate the continuous monitoring of energy efficiency.

In its simplest definition, a fan is a device that creates a pressure difference to facilitate airflow. The blades, the moving elements of the fan, perform work on the air, imparting static and kinetic energy to it. The ratio of these static and kinetic energies to the air depends on the fan's characteristics. Fans are widely used in industry and consume a significant amount of energy. Motor systems account for 70% of the electricity consumption in industrial facilities. While fan system efficiency can be 79% or higher, it frequently falls below 50%, and even to 15-20%. Therefore, evaluating and optimizing the efficiency of fan systems offers significant energy efficiency opportunities.

Pumps are equipment used to transfer water and liquid fluids from one place to another. Research conducted by the European Commission has shown that approximately 22% of the energy demand for electric motors worldwide comes from pumping systems. Operating pumping systems at higher flow rates or head rates than required leads to inefficiency. The high energy consumption of pumping systems also presents significant energy efficiency opportunities.

Machines that increase the pressure of air by compressing it taken from the atmosphere are called air compressors. Air is compressed to a pressure above the ambient or atmospheric pressure. The pressurized air is transported through a distribution system (pipeline), and some of the energy used to compress the air is recovered to perform work. Inefficiencies in compressed air systems occur due to reasons such as operating the system at excessively high pressure, leaks, open drip pipes and condensate drains, restricted piping, pressure loss that cannot be recovered in filters and other components, and inefficient compressor control. To optimize performance in compressed air systems, it is necessary to understand how the compressed air system meets the air demands for production purposes, how to prevent waste, how to implement compressed air energy storage, and how to optimize compressor control.