Estimation of Battery Requirements in 600 WP Solar Power Generation Systems

Abstract Solar Power Plant as an effort to meet human needs for electrical energy is the right choice for renewable energy. Important components that exist in Solar Power Plant include solar panels, MPPT, batteries and inverters. The function of the battery is to store reserves of electrical energy generated by Solar Power Plant during the day (charging cycle) and at night (discharging cycle). The amount of battery used is a separate design to be able to optimise the installed solar power plant. With the ideal number of batteries, the Solar Power Plant will be more leverage in terms of charging and emptying. The battery used in the 600 Wp Solar Power Plant system at STT Migas Balikpapan is a 12 V 100 Ah deep cycle VRLA type with a total of two installed in series. This is still considered less than optimal because the battery only has a capacity of 100 Ah. In this study, the ideal number of batteries used for Solar Power Plant was calculated, where the ideal number of batteries for 600 Wp Solar Power Plant at STT Migas Balikpapan was six batteries with each type of VRLA deep cycle of 12 V 100 Ah.