Modelling the use of PVSYST software for a stand-alone PV solar system "off grid" with batteries by utilizing silicon hetero-junction technology (HJT) panels in Iraq/Basra.

Abstract

Fossil fuels have been widely used in electricity generation in recent years, resulting in excessive CO2 emissions. Continuing this would increase the temperature of the atmosphere, causing storms, hurricanes, droughts, dust storms, and flooding. Due to the fact that renewable energy produces few or no emissions, it has become increasingly important for it to be adapted in recent years. During the past few years, the PV sector has experienced rapid growth. New technology has enabled PV cells to become more efficient, and the sector is rapidly embracing new technologies. In this regard Silicon Hetero-junction technology HJT has been able to offer additional benefits: It is able to achieve efficiency levels above 24% at temperature 20C°. HJT solar panels have over 90% module bifaciallity and a low temperature coefficient (-0.24%/°C), which benefits to the levelized cost of energy (LCOE) and output power for PV systems. The objective of this study is to assess and compare the efficiency of high-quality (HJT) solar panels and SI-MONO solar panels for a residential off-grid system with at a peak power of 3 kWh and a daily power close to 20 kWh with a 48V system in Iraq/Basra. In order to calculate energy output, and enhance the system design, PVSYST (7.2.11 version) software was used. PVSYST's database contains meteorological data, including characteristics, solar radiation, and ambient temperature.