Assessment of Solar Photovoltaic System Performance

Meteorological factors such as solar irradiance and temperature have effects on the performance of grid-connected solar photovoltaic stations. In this study, the performance assessment of a 62.4 KWp grid-connected solar photovoltaic system installed in Tripoli-Libya has been carried out. The results presented were based on meteorological data measured in the site during 2018–2020 and recorded every 10 minutes. The impact of the environmental factors on the performance parameters has been investigated. The results presented in this study showed that the recorded sunshine hours range between 5.08 h per day in January and 11.79 h per day in July with an average of about 3048 h per year. The measured monthly averaged daily global solar radiation on horizontal surface varies between 3.07 and 7.87
$\text{kWh}/\mathrm{m}^{2}/\text{day}$
, and the total annual energy output predicted based on solar radiation measured at tilted surface
$(32^{\circ})$
was 116.78 MWh/year.