**6. Conclusions**

Simulation modeling can be used to effectively study power and electricity consumption in production processes. Such studies provide potential cost reductions in manufacturing companies. Due to the flexibility of available software, the proposed approach can be applied to different processes.

This paper draws attention to the broad context of the research to be conducted. Apart from the obvious problem of rising electricity prices, one has to take into account possible future limitations in power availability. The very issue of differentiating between power and electricity can be a problem for production companies. Considering electricity as a commodity and not as a public good would help to better balance the power system resources, but this would require changes necessary in the rules of the energy markets.

Finally, it should be noted that the problem under consideration may not seem very urgen<sup>t</sup> at present. According to the authors, this is a mistaken impression. The current pandemic crisis, political crises that are likely to recur, and the drive to implement Industry 4.0 solutions may very quickly verify such a view. The time to discuss and prepare solutions for these challenges is now.

**Author Contributions:** Conceptualization, C.S. and J.S.; Methodology, J.S., P.S. and C.S.; Software, J.S. and D.D.; Validation, J.S.; Formal analysis, J.S. and C.S.; Investigation, J.S.; Resources, J.S.; Data curation, J.S. and D.D.; Writing—original draft preparation, J.S., P.S. and C.S.; Writing—review and editing, J.S. and C.S.; Visualization, D.D.; Supervision, C.S.; Project administration, C.S. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Polish National Agency for Academic Exchange, under gran<sup>t</sup> no. PPI/APM/2018/1/00047, entitled "Industry 4.0 in Production and Aeronautical Engineering" (International Academic Partnerships Program). The APC was funded by the Polish National Agency for Academic Exchange.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Data are contained within the paper.

**Acknowledgments:** Technical support: InterMarium Ltd., Kraków, Poland.

**Conflicts of Interest:** The authors declare no conflict of interest.
