Design and economic analysis in stand alone photovoltaic system

Photovoltaic generating system has a high potential, since it is clean, environmental friendly and secure energy sources. Stand alone photovoltaic system is chosen as an alternative to grid utility where excess to utility is impossible especially in remote area. In stand alone photovoltaic system, the system is designed to fulfill a specific load demand, normally close to its point of utilization. This paper describes the design steps in stand alone photovoltaic system that include sizing of PV modules, battery storages, charge controller and inverter. An economic analysis was performed to identify system practicality based on predefined load. The finding shows that the levelized cost of energy for proposed system is RM 1.76/kWh.