## 5 Simulation Results and Discussion
### Simulation Results for the Rural Network  
For the rural network, the reduction in _SAIDI_, _ENS_, and _COST_ indicators resulting from the implementation of the considered options is shown in Figures 8 and 9. The results obtained for the rural network indicate that the reduction sequence for _SAIDI_, _ENS_, and _COST_ follows a similar pattern. The corresponding list, sorted in descending order from the highest to the lowest reduction, is provided below:  
1. Simultaneous construction of a new line and the installation of the recloser REC29;
2. Installation of the new recloser REC12;
3. Replacement of OHLs with UCLs;
4. Replacement of old CBs, with a greater effect when the CB is located at the beginning of the feeder; and
5. Replacement of old disconnectors and fuses.  
Figure 8: Reduction in the reliability indicators for the considered options in the rural network—Part 1.  
Figure 7: Applied investment options for the semi-urban network with a maximum budget of EUR 200,000.  
The selected investment options for minimizing _SAIDI_, _ENS_, and _COST_ are the same for all three indicators and are presented in Table 14. In addition to the selected investment options, Table 14 also includes the available and allocated funds. The values of the indicators for the baseline scenario and after minimization are provided in Table 15 for the rural network.  
For the components in the rural network, the values of _Ratio_ (8) are shown in Table 16, indicating the annual reduction in economic losses per unit of money invested in the considered option. The highest values are obtained for the installation of a new recloser  
\begin{table}
\begin{tabular}{c c c c c} \hline \hline \multirow{2}{*}{**Available Fund**} & \multirow{2}{*}{**Indices**} & **Baseline Scenario** & **Improvement of Indices** & **Indices After Implemented Options** \\ \hline \multirow{3}{*}{EUR 150,000} & _SAIDI_ [h/yr] & 14.24 & 7.06 & 7.18 \\  & _ENS_ [kwh/yr] & 21,073.5 & 11,723 & 9350.5 \\  & _COST_ [keUR/yr] & 106.88 & 70.81 & 36.07 \\ \hline \multirow{3}{*}{EUR 100,000} & _SAIDI_ [h/yr] & 14.24 & 4.61 & 9.63 \\  & _ENS_ [kwh/yr] & 21,073.5 & 7772.5 & 13,301 \\  & _COST_ [keUR/yr] & 106.88 & 48.09 & 58.79 \\ \hline \multirow{3}{*}{EUR 50,000} & _SAIDI_ [h/yr] & 14.24 & 2.45 & 11.79 \\  & _ENS_ [kwh/yr] & 21,073.5 & 3950.4 & 17,123.1 \\ \cline{1-1}  & _COST_ [keUR/yr] & 106.88 & 22.72 & 84.16 \\ \hline \multirow{3}{*}{EUR 10,000} & _SAIDI_ [h/yr] & 14.24 & 1.76 & 12.48 \\ \cline{1-1}  & _ENS_ [kwh/yr] & 21,073.5 & 2908.7 & 18,164.8 \\ \cline{1-1}  & _COST_ [keUR/yr] & 106.88 & 17.49 & 89.39 \\ \hline \hline \end{tabular}
\end{table}
Table 15: Reliability assessment results for the rural network model.  
\begin{table}
\begin{tabular}{c c c} \hline \hline \multirow{2}{*}{**Available Fund**} & **Allocated Fund** & **Selected Investment Options** \\ \hline EUR 150,000 & EUR 147,600 & CB1, CB6, CB25, CB45, D4, D38, F9, F10, F11, F33, L50 + REC29-new, REC12-new \\ \hline EUR 100,000 & EUR 100,000 & L50 + REC29-new \\ \hline EUR 50,000 & EUR 47,600 & CB1, CB6, CB25, CB45, D4, D38, F9, F10, F11, F33, REC12-new \\ \hline EUR 10,000 & EUR 10,000 & REC12-new \\ \hline \hline \end{tabular} Legend: CB—circuit breaker, L—line, REC—redcoser, D—disconnect, F—fuse.  
\end{table}
Table 14: Selected investment options for _SAIDI_, _ENS_, and _COST_ minimization for the rural network model.  
Figure 9: Reduction in the reliability indicators for the considered options in the rural network—Part 2.  
REC12, followed by the simultaneous construction of a new line L50 and installation of a recloser REC29, which has a lower value compared to REC12 due to the significant financial resources required for the construction of the new line. Furthermore, the circuit breakers CB1 and CB25 at the beginning of the feeders have the next highest values. For all components not listed in the table, the obtained values are less than 0.05 [1/yr].