**4.1. Geographic information system applied to a 108 kWp PV power plant**

The first case study is a commercial plant with 100 kW nominal power on the inverters and 108 kW peak power on the PV modules, operated by the Spanish company Sobarriba Leon 0. The PV modules are installed on fixed structures, pointing south, and inclined at 28 degrees to the horizontal. The PV field consists of 432 GFM 220-250 monocrystalline 250 Wp silicon modules manufactured by Wuxi Guofei Green Energy Source Co. Ltd. They are organized in 24 strings with 18 modules on each string. There are six electrical protection boxes for the strings in total. **Figure 8** shows all electrical parameters for each PV module, while **Figure 9** shows the PV faults log.

The effective application of the GIS tool allows the observation of all electrical parameters in a holistic way. As shown in **Figure 8(a)**, critical peak power performances can be easily detected among more than 400 PV modules. Other electrical parameters, such as fill factor, open circuit voltage, or short circuit current dispersion, can also be observed in the context of the facilities.
