4.5.1. Scenario 1

When the power limitation occur, operations on machine M1 are completed. On the other machines, operations are started or the machines are set to the "Idle" state. Although the job allocation priority was set to the last operation on machine M4, it was not set to run continuously. Operations must be run sequentially. This means that products from machine M2 are passed to machine M3, and then machine M4. This allows for subsequent production orders to be executed. It is important to note that the start of production of a given production batch must be completed and only then can the machine operate in the "Idle" state. Figure 5 shows the power consumption, depending on the production schedule, for four variants of the size of power limitations. The red box indicates the times of power limitation. There was a clear decrease in the frequency and diversity of the performed technological operations.

**Figure 5.** Power consumption and production schedule for scenario 1.

Table 7 shows the factors of the production process for different variants of power limitation.

**Table 7.** Production process factors for scenario 1.


Increasing the amount of power limitation (decreasing the available power) increased the production process time by 27 min (with the 5 kW available power reduction) to 113.4 min (with the 20 kW reduction). Increasing the process realization increased the electricity consumption in the production cell due to the increased time the machines were in the "Idle" state. The power consumption increased from 6.54 (variant 1) to 28.29 (variant 4) with respect to the base state (Table 6). As the reduction in power consumption increased, the productivity of the machines used in the process decreased. It is because of the lower possible value of power consumption that the selected machines cannot run but have to be put into the "Idle" state. The maximum utilization of machine M3 decreased from a value of 90.09% (with the 5 kW available power reduction) to a value of 76.56% (with the 20 kW available power reduction).
