## 4 Results and Discussion
### Characteristics of the Grid-Connected Photovoltaic System (On Grid-PV)  
The On Grid-PV will have a generating capacity of 22 kWp, with a system efficiency of 78%. The number of monocrystalline panels required is 56, with a power per module of 390 Wp. The one-line diagram of the system is shown in Supplementary Material S2, which will have an average consumption of the production unit of 3275 kWh per month, and the average generation was established at 2429 kWh per month, which represents a 44% reduction in energy consumption, seeking to reduce production costs per kilogram of Tilapia by 34%, representing seven Mexican pesos per kilogram (0.31 USD/kg).  
The arrangement of the modules is in parallel, with a maximum I of 15.94 amperes and an Imp of 15.3 amperes of direct current. On the other hand, Vmp will be 592.2 volts and e% of 3.17 Volts, and these characteristics are supported by the two microinverters. The DC output of the array will be protected with a 20 amp fuse, which will be connected to the two microinverters, each inverter will be protected with a surge suppressor with  
Figure 10: Photovoltaic system design target, 50% reduction in electricity consumption costs, obtained from Retscreen expert V.8.  
Figure 9: Photovoltaic system design target, 44% reduction in grid energy consumption, obtained from Retscreen expert V.8. Case proposal 22,008 kWh.  
a \(3\times 40\) amp thermomagnetic switch at the output, which will be connected to the AC voltage load center, also protected with a \(3\times 40\) amp thermomagnetic switch, and then connected to the bidirectional meter.  
Finally, the entire system will be properly grounded with a bare conductor. The construction time is estimated as 30 days, and the interconnection contract procedures in 60 days, since CFE and SENER intervene for the corresponding supervisions. The schematic of On Grid-PV connected system for an aquaculture farm can be seen in Figure 11.  
As for the inverter monitoring system, this can be carried out via Wi-Fi or GPRS as shown in Figure 12. This option allows the user to monitor the following variables in real time [82]. On the other hand, [PERSON] [83] suggest when service maintenance is required to some of the components, according to the regulations, there are disconnectors for the primary direct current circuit and for the secondary alternating current circuit by means of devices described in the diagram (Supplementary Material S2).  
Figure 11: Schematic of an On Grid-PV connected system for an aquaculture farm.  
Figure 12: Schematic real time monitoring of an On Grid-PV connected system [82].  
The variables that the user can visualize in real time are: (1) the value of the DC input voltage; (2) the value of the DC input current; (3) the grid voltage value; (4) the grid current value; (5) status: (a) the instantaneous status of the inverter (generating), (b) the instantaneous output power value (power in Watts); (6) the grid frequency value in Hz; (7) total generated energy value in kWh; (8) total energy generated this month in kWh; (9) total energy generated last month in kWh; (10) energy generated today in kWh and (11) energy generated yesterday in kWh.