INSTALLATION AND MONITORING OF A 10 kW OFF-GRID SOLAR PHOTOVOLTAIC SYSTEM FOR RESIDENTIAL APPLICATIONS

Rakhmatullaev Shamsiddin Hakimboy ugli,Axmadaliyev Utkirbek Akramjonovich

Authors

Rakhmatullaev Shamsiddin Hakimboy ugli,Axmadaliyev Utkirbek Akramjonovich 4th-year student, Department of Energy Saving and Energy Audit, Andijan State Technical Institute, Andijan,Senior lecturer, Department of Alternative Energy Sources, Andijan State Technical Institute, Andijan

Keywords:

off-grid solar PV system; 10 kW residential system; LiFePO₄ battery; MPPT charge controller; hybrid inverter; cloud monitoring; energy autonomy; Uzbekistan.

Abstract

This paper presents an integrated approach to the installation and monitoring of a 10 kW off-grid PV system suitable for the climatic conditions of Uzbekistan, where annual solar irradiation reaches 1,800–2,200 kWh/m² and there are more than 300 sunny days per year. The system architecture comprises seventeen 615 W monocrystalline panels, a 10 kW pure-sine-wave hybrid inverter, lithium iron phosphate (LiFePO₄) battery storage of 20–30 kWh at 48 V, and an integrated MPPT charge controller. Three commercial inverter platforms (Deye, Growatt, Jingsun) are compared based on their functional and economic characteristics. Installation procedures, including site assessment, structural mounting, electrical interconnection, and commissioning, are described.

References

Masters G.M. Renewable and Efficient Electric Power Systems. 2nd ed. Hoboken: Wiley-IEEE Press, 2013, 712 p.

Avezov R.R., Akhatov J.S., Avezova N.R. A review on photovoltaic-thermal (PV/T) air and water collectors. Applied Solar Energy, 2022, vol. 58, no. 3, pp. 421–437. DOI: 10.3103/S0003701X22030045.

Messenger R.A., Ventre J. Photovoltaic Systems Engineering. 4th ed. Boca Raton: CRC Press, 2017, 528 p.

Luque A., Hegedus S. (eds.) Handbook of Photovoltaic Science and Engineering. 2nd ed. Chichester: John Wiley & Sons, 2011, 1162 p.

National Renewable Energy Laboratory (NREL). Best Practices in Photovoltaic System Operation and Maintenance. Technical Report NREL/TP-7A40-73822, 2018, 154 p.

International Renewable Energy Agency (IRENA). Renewable Power Generation Costs in 2023. Abu Dhabi: IRENA, 2024, 196 p.

International Energy Agency (IEA). Trends in Photovoltaic Applications 2023. IEA PVPS Task 1 Report, 2023, 116 p.

Decree of the President of the Republic of Uzbekistan No. PF-158 of December 2, 2022, "On measures to accelerate the transition to a green economy until 2030". Available at: https://lex.uz/docs/-6303080 (accessed: 05.05.2024).