Abstract
Kelapan Island is one of the outermost islands in the Bangka Belitung Province. With a total of 30 households consisting of 120 people, electricity is currently from diesel generators. The dominant electrical equipment used on Kelapan Island are lights, televisions, fans, irons also several units of refrigerators and washing machines. For reducing the use of fossil energy, electrical energy sources are modeled for supply using a photovoltaic system. The average amount of electricity needed per house is 290.9 W, so the amount of power required for 4 hours at night is 34.908 kWh. The photovoltaic system will be modeled in 2 stages, centralized photovoltaic and photovoltaic at each resident's house. The photovoltaic system that is installing in each residential house requires four units of 100 Wp solar panels, six units of 100 Ah batteries, 1 unit of a 400-watt inverter, and four units of solar charger controllers. Whereas for the centralized photovoltaic system model requires 97 units of 100 Wp solar panels, 160 units of 100 Ah batteries, 25 units of 400-watt inverters and 108 units of solar charger controllers.
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