*5.4. Economic Analysis*

In order to reflect the impact of the flexible load on the safety checking, the safety checking costs of the two cases are compared in Table 5. The unit adjustment cost of the second case is less than that of the first case, mainly because it can reduce the load and make up the adjustment task of the unit, reducing the unit adjustment cost, and the load loss of the second option is lower than the unit output adjustment cost.

**Table 5.** The safety checking costs of the two cases.


Table 5 shows that the total cost of the safety checking for the second case is smaller than the first case, and the cost savings are about 11,200 yuan. Table 6 reflects the impact of the load reduction on the safety checking. It can be seen from the table that the reducible load participates in the increased capacity that can increase the safety checking power adjustment.

**Table 6.** The impact of load reduction on safety checking.

