If predictions are accurate and engineers take corrective actions properly, the company saves substantial money by avoiding economic penalties. Not being fined by CRE is a desirable situation, leading to the more efficient management of the distribution networks. In the end, the total cost of energy distribution lowers, which entails lower electricity costs to the consumers. CFE manages power distribution in Mexico on the basis of 16 divisional units and 150 distribution zones (see Figure 1). The MIRD project was planned and developed inside DCO (the Spanish Acronym for Division Centro Occidente--Central-West Division), \begin{table}
\begin{tabular}{c c c c} \hline \hline
**PQ Index** & **Criterion** & **\%** & **Basis** \\ \hline Current unbalance & \textless{}15\% & 80 & Readings \\ Power factor & \textgreater{}0.95 & 80 & Readings \\ Operation voltage & \textgreater{}93\%, \textless{}105\% & 90 & Quality nodes \\ \hline \hline \end{tabular}
\end{table} 
Table 1: PQ Indices Criteria. one of the most innovative and efficient divisional units of CFE. Table 2 shows power infrastructure and capacity figures for both CFE as a whole and DCO only. These numbers give a clear idea of the importance and magnitude of the DCO distribution grid. Moreover, a total of 5953 services connected to the DCO grid as distributed generation (as of 2021) reinforce the need for an adequate early-warning system for PQ monitoring. Across its 145 power substations, DCO is in charge of approximately 800 distribution circuits. Those distribution circuits are of considerable size, with power consumption ranging between 100 KW to 8 MW and 0 to 3 MVAR. Every Sunday night, MIRD generates the forecast of the variables of interest of each circuit for the following week. Based on those forecasts, it computes the predicted PQ indices for that week. If there is a possibility that PQ indices will not meet the standard, \begin{table}
\begin{tabular}{l r r} \hline \hline
**Attribute** & **CFE Distribution** & **Central-West (DCO)** \\ \hline Number of divisions & 16 & 1 \\ Number of zones & 150 & 12 \\ Power distribution lines (km) & 933,699 & 43,288 \\ Medium voltage lines (km) & 522,347 & 31,912 \\ Low voltage lines (km) & 411,352 & 11,376 \\ Number of power transformers & 3269 & 151 \\ Power transformers capacity (MVA) & 78,895 & 2299 \\ Number of distribution transformers & 1,525,472 & 82,557 \\ Distribution transformers capacity (MVA) & 49,986 & 2263 \\ Total transformers capacity (MVA) & 128,881 & 4562 \\ Number of substations & 2164 & 124 \\ Number of customer services (thousands) 1 & 45,705 & 3368 \\ Delivered power (GWh) 1 & 259,112 & 15,736 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Power distribution grid research context (values to 2022). Figure 1: CFE manages Mexico’s electric power distribution on the basis of 150 geographical zones grouped into 16 divisional units. CFE’s Central-West Division (DCO) is in charge of 12 zones (yellow) located in the Mexican states of Michoacan and Colima. The combined land area of these two states is over 64,200 square kilometers. MIRD sends email messages to the engineers in charge of monitoring the circuits delivering low-quality energy. Once engineers receive the message, they verify the circuits' operating conditions and collect more information from MIRD's web interface (or other systems that CFE has established for its day-to-day operation). Distribution engineers can then take corrective measures to prevent any incidents that would lower the circuits' PQ indices under their responsibility. As a result, the reliability of the distribution system has increased, as well as the quality of the electric power delivered to customers. MIRD is required to be an efficient early-warning system capable of acquiring and processing information at a big-data scale. The number of PQMs delivering data to MIRD is approximately 700 distribution circuits and nearly 150 quality-control nodes.