Abstract
Recently, the environment has been negatively impacted by the excessive CO2 emissions caused by the wide usage of fossil fuels in electricity generation. If this continued, it is predicted that the temperature of the atmosphere would rise, causing an increase in storms, hurricanes, droughts, dust, and floods. Therefore, as renewable energy produces little to no emissions, there is an urgent need to adapt it in recent times. Meanwhile, The PV sector has experienced rapid growth in recent years. The PV sector is embracing new technology, and the cell efficiency has been rising rapidly like Silicon Hetero- junction technology HJT which has offered additional benefits: It offers a well-suited application to reach efficiencies above 23% with process temperatures below 200°C. HJT solar panels have >90% module bifaciality and a low temperature coefficient (-0.3 %/C°), and provide additional benefit to the Levelized Cost of Energy LCOE and output power for PV systems. This study intends to assess the efficiency of a residential off-grid system with (HJT) PV panels at a total power of 2.0 kWh and the daily power close to 10 KWh/day with a 48V system in Iraq/Baghdad. PVsyst (7.2.11 version) software has been used for the analysis to calculate the energy output, and enhancing the system design. The characteristics, solar radiation, and ambient temperature are also included in the meteorological data used for evaluation, which is taken from PVsyst's database.
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