Performance Analysis Of Grid-Connected CIGS PV Solar System And Comparison with PVsyst Simulation Program

Abstract

CIGS is the thin film technology (second generation) fabricated from Copper-Indium Gallium Selenide. This research displays the performance assessment of a 5kWp CIGS grid-connected PV Solar system. CIGS system installed at al-Mansour Company, Iraq-Baghdad (latitude 33.3 ° N, longitude 44.4 ° E and 41m above the sea level). The current paper presents the performance analysis of CIGS system (real system) and the comparison with PVsyst simulation program to find out how close are the CIGS system approaches perfect system (PVsyst) under Baghdad climate. The CIGS system was monitored during the year of 2017. The daily average of array, reference and final yields for real and PVsyst systems were 5kWh/kWp (h/day), 6.1kWh/kWp and 4.85kWh/kWp, and 5.46kWh/kWp (h/day), 6.3kWh/kWp and 5.3kWh/kWp respectively. The annual energy yield from real and PVsyst systems are 1781.8kWh/kWp/year and 1924kWh/kWp/year respectively. The annual energy output from real and PVsyst systems are 8820.2kWh and 9538.5 kWh respectively. The annual global horizontal solar irradiation (GHI) received in Baghdad of 1986.4kWh/m 2 . The yearly daily average of system and array losses for real and PVsyst systems were 0.18 kWh/kWp/day and 0.18 kWh/kWp/day, and 1.1kWh/kWp/day and 0.84 kWh/kWp/day respectively. The yearly average of array, system and inverter efficiencies for real and PVsyst systems were 12.7%, 12.1% and 96.47%, and 13.18%, 12.72 and 97 respectively. The yearly average of the capacity factor and performance ratio for real and PVsyst systems were 20.4% and 80.2%, and 22% and 83% respectively. These values indicate very good performance for CIGS PV solar system fixed in Baghdad city. The comparison between PVsyst and CIGS will take place in results and discussion.

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