## 4 Application Example
### Summary of Benefits derived from the Improvement of the Sustainability of the Transformation House  
The application of the procedure for improving the sustainability of the transformation center used in the application example has allowed the energy, environmental and economic savings indicated in Table 15 to be achieved. \begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline \multirow{2}{*}{
\begin{tabular}{c} **Type of Day** \\ **(n° Days)** \\ \end{tabular} } & \multirow{2}{*}{**Period**} & \multicolumn{3}{c}{**1600 kVA (\({}^{\text{D}}\)**)**} & \multicolumn{3}{c}{**1600 kVA (\({}^{\text{D}}\)**} & \multicolumn{3}{c}{**1000 kVA (\({}^{\text{D}}\)**} \\ \cline{3-8}  & & **Energy** & **KWh/Day** & **Costs** & **kWh/Day** & **Costs** & **Energy** & **Costs** \\ \cline{3-8}  & & & **kWh/Day** & **(f/Year)** & **kWh/Day** & **(f/Year)** & **kWh/Day** & **(f/Year)** \\ \hline \multirow{2}{*}{A (81)} & P1 & 30.5063 & 129.96 (\({}^{\text{\textdegree}}\)) & 29.6519 & 126.00 (\({}^{\text{\textdegree}}\)) & 13.3958 & 57.80 (\({}^{\text{\textdegree}}\)) \\ \cline{2-8}  & P2 & 24.5555 & 560.79 (\({}^{\text{\textdegree}}\)) & 23.7021 & 543.53 (\({}^{\text{\textdegree}}\)) & 11.1513 & 249.7 (\({}^{\text{\textdegree}}\)) \\ \hline \multirow{2}{*}{B (43)} & P2 & 30.5063 & 45.93 (\({}^{\text{\textdegree}}\)) & 29.6519 & 44.55 (\({}^{\text{\textdegree}}\)) & 13.3958 & 20.38 (\({}^{\text{\textdegree}}\)) \\ \cline{2-8}  & P3 & 24.5555 & 254.19 (\({}^{\text{\textdegree}}\)) & 23.7021 & 246.38 (\({}^{\text{\textdegree}}\)) & 11.1513 & 113.16 (\({}^{\text{\textdegree}}\)) \\ \hline \multirow{2}{*}{B1 (66)} & P3 & 30.5063 & 37.22 (\({}^{\text{\textdegree}}\)) & 29.6519 & 36.10 (\({}^{\text{\textdegree}}\)) & 13.3958 & 16.50 (\({}^{\text{\textdegree}}\)) \\ \cline{2-8}  & P4 & 24.5555 & 335.57 (\({}^{\text{\textdegree}}\)) & 23.7021 & 325.23 (\({}^{\text{\textdegree}}\)) & 11.1513 & 149.46 (\({}^{\text{\textdegree}}\)) \\ \hline \multirow{2}{*}{C (61)} & P4 & 30.5063 & 18.59 (\({}^{\text{\textdegree}}\)) & 29.6519 & 18.03 (\({}^{\text{\textdegree}}\)) & 13.3958 & 8.26 (\({}^{\text{\textdegree}}\)) \\ \cline{2-8}  & P5 & 24.5555 & 269.76 (\({}^{\text{\textdegree}}\)) & 23.7021 & 269.76 (\({}^{\text{\textdegree}}\)) & 11.1513 & 120.09 (\({}^{\text{\textdegree}}\)) \\ \hline \multirow{2}{*}{D 251 (\({}^{\text{\textdegree}}\)) +114 (\({}^{\text{\textdegree}}\))} & P6 (\({}^{\text{\textdegree}}\)) & 26.8981 & 41.49 (\({}^{\text{\textdegree}}\)) & 24.2902 & 34.98 (\({}^{\text{\textdegree}}\)) & 9.5404 & 11.49 (\({}^{\text{\textdegree}}\)) \\ \cline{2-8}  & P6 (\({}^{\text{\textdegree}}\)) & 78.8296 & 1035.9 (\({}^{\text{\textdegree}}\)) & 62.9378 & 873.56 (\({}^{\text{\textdegree}}\)) & 17.2478 & 157.62 (\({}^{\text{\textdegree}}\)) \\ \hline \multirow{2}{*}{TOTAL} & \multirow{2}{*}{ALL} & 273.19 (\({}^{\text{\textdegree}}\)) & 259.66 (\({}^{\text{\textdegree}}\)) & 114.43 (\({}^{\text{\textdegree}}\)) & 119.45 (\({}^{\text{\textdegree}}\)) \\ \cline{1-1} \cline{3-8}  & & 2456.2 (\({}^{\text{\textdegree}}\)) & 2250.2 (\({}^{\text{\textdegree}}\)) & & 114.43 (\({}^{\text{\textdegree}}\)) \\ \hline \hline \end{tabular}
\end{table} 
Table 14: Daily energies and annual costs for three analyzed transformers: 1600 kVA (\({}^{\text{\textdegree}}\)) with no improvements, 1600 kVA (\({}^{\text{\textdegree}}\)) with capacitor bank improvements and 1000 kVA (\({}^{\text{\textdegree}}\)) efficient transformer, on working days (\({}^{\text{\textdegree}}\)) and holidays (\({}^{\text{\textdegree}}\)), corresponding to 2020 (\({}^{\text{\textdegree}}\)) and 2022 (\({}^{\text{\textdegree}}\)) energy prices.