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It is concluded that off-PV electricity is technically and economically viable technology for the electrification of residential applications. The results show that unit cost of electricity produced using off-grid PV system is lower than the unit cost charged in case of conventional electric supply to the residential areas. The unit electricity cost has also been calculated and was found to be PKR. 457,306 whereas the annualized life cycle cost (ALCC) was determined to be PKR. The LCC of the system was found to be PKR. The economics evaluation using life cycle cost (LCC) analysis of the complete system has also been carried out. Using this model, the peak power and area of PV modules, capacity of battery backup, size of charge controller and inverter was calculated to be 1928Wp and 12.85m2, 9640.5Wh, 56.65A and 1020W, respectively. The complete model for the sizing of complete PV system has been presented to determine the required PV power rating, battery storage capacity, size of charge controller and inverter to fulfill the required load. The system has been designed keeping in view the required household load and energy available from the sun. This paper presents a study about an off-grid (stand-alone) photovoltaic (PV) system for electrification of a single residential household in the city of Faisalabad, Pakistan (31.42°N, 73.08☎, 184m).

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