Strategies For Integrating PV Systems Into The Building Envelope “PVIB”: Rational sizing of standalone photovoltaic system

Rational Sizing of solar array and battery storage in a standalone photovoltaic (PV) system is investigated. Based on the selection from two types of the PV modules with their various peak power and cost and also batteries with their capacity and cost, finally for choosing PV array and battery bank at lower cost by using the MATLAB software. Mathematical approach was presented for optimal sizing of PV system components in addition to the total capital cost of the system. As a result, the system composed of 10 monocrystalline solar modules that yields the most cost-effective system among the 16 considered systems, the optimized PV array size is 2620 Wp with a cost of 463 500 DA. Concerning the size optimization of batteries bank, we have found that 24 solar batteries (6 rows of 4 batteries in series) with a capacity of 100 Ah is the better choice among the 11 elements of batteries, so the batteries bank capacity is 600 Ah with a cost of 146 870 4 DA. Our results are very encouraging as they show us the significant improvements in photovoltaic performance.