Comparative on-grid solar systems winter performance analyses of different PV technologies in Baghdad weather

Nibras M. Obaid, Naseer K. Kasim, Arwa M. Kadhim, Ahmed Alhamadani, Oday Ibraheem Abdullah

2021

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DOI 10.1063/5.0068878
Data confidence 70 medium
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Abstract

The main aim of this research paper is to study and analyze the performance of three different types of Grid- Tied of Photo -Voltaic (PV) solar technology systems under Baghdad climate conditions in the winter season. The first one is Heterojunction with Intrinsic Thin layer (HIT) of 15 kWP, Copper Indium Gallium Selenide (CIGS) of 4.95 kWp and Monocrystalline Silicon (mono-Si) of 5.05 kWP that installed on the roof of the training and research office followed to the ministry of electricity and the two others installed in Mansour Factory. Where these systems are located in Iraq- Baghdad “latitude 33.3 °N, longitude 44.4 °E and 41 m above the sea level”. The months to achieve the experimental work are January, February, and December of 2019. The highest values of daily energy produced for (HIT), (CIGS), and (mono-Si) in February were (77.35, 23.4, 22.58) kWh/day, respectively. While, the minimum values of energy produced in December by HIT, CIGS, and mono-Si were (48.58, 20.34, 16.86) kWh/day, respectively. It was found that the daily overall losses were higher in mono-Si in overall winter months, and maximum systems losses in December and minimum one in February. HIT Systems efficiency was higher than other systems and getting between February and December (14.65-12.97) % while (12.46-11.87) %, (10.49-9.19) % fo r CIGS and mono-Si systems respectively. The energy yield of HIT, CIGS, and Mono-Si systems varied in February and December between (5.24-3.29) kWh/kWp, (4.72-4.1) kWh/kWp, and (4.47-3.34) kWh/kWp, respectively. Performance ratio was higher in all months for CIGS systems that varied between (82.6-84) %.