Energy Performance Indicators According to ISO 50001:2018 Requirement: Formation: Suitability: Normalization

With the amendment of ISO 50001 to the 2018 version of the standard, some topics within an EnMS came into greater focus, such as the energy performance indicators (EnPIs). Since then, many experiences have been gained in this regard, which will be presented in the lecture. After answering the question “when and for what are EnPIs necessary?,” the next challenge within an EnMS is “In which context is which indicator recommended?” Basically, the first indicator to think of is “energy consumption per product produced,” unless the SEU (significant energy use) is not directly involved in the production but performs peripheral tasks (this case is explained by means of an example), or the energy consumption is independent of the produced quantity (another example). Once the appropriate EnPI has been found, the requirements for normalization from subsection 6.4 of ISO 50001:2018 should be observed (although normalization must only be carried out IF data is available that indicates the effect of relevant variables! This case is also explained by means of an example). With regard to given needs for normalization, the following examples from the recent past will be presented and explained in the lecture: product mix, base load, temperature, and capacity utilization