“…Performance assessment of PV systems in real outdoor conditions is very important as the performance of the PV system in a research laboratory environment is distinct from the performance of the PV system in practical open-air conditions (Asaad et al, 2017). There are a few software programs such PVsyst (Rachit and Vinod kumar 2016;PVSyst, 2020;Baqir and Channi 2021;Shrivastava et al, 2021), PV Watts (Psomopoulos et al, 2015;Dobos, 2014;Abdallah et al, 2022), PVGIS (Psomopoulos et al, 2015;Abdallah et al, 2022;PVGIS, 2012), RETScreen (Umar et al, 2018;Srivastava et al, 2020), SAM (Wang et al, 1999), TRNSYS (Beckman et al, 1994), PV*SOL (Firat, 2019;El Gindi et al, 2017;Kavitha et al, 2021), and HOMER (Ahmad and Alam 2018a;Ahmad and Alam 2018b;Ahmad et al, 2020), etc. that are able to estimation overall performance of PV system however the reliability of the software program remains now no longer tested.…”