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Since the ability of solar technology to electrify most building, they have been used widely in the power generation either in standalone or grid connected connection. Standalone or autonomous photovoltaic system is seen to have large benefits to the system owner including low maintenance, low upkeep cost, no waste or byproducts, and easy expansion by using multiple solar panels and batteries. Hence, this article presents a design phase and economic analysis of the Standalone Photovoltaic System (SAPVS) to electrify the educational building in Polytechnic Merlimau, Malacca. The design of the SAPVS started with the determination of SAPVS components before it proceeds to the design calculation. The results give the PV area, PV peak power, battery capacity, inverter and charge controller of 86.73m2, 10.4kWp, 62.37 kWh, 2 kW and 350 (A) respectively. Moreover, the financial life-cycle cost analysis was investigated. Finally, it is proved that an SAPVS is technically and economically viable and feasible to electrify an educational building in Malaysia.