20 kV submarine cable network as an alternative for electrical energy supply on Selayar Island

Selayar Island is one of the islands in South Sulawesi Province. This island is about 40 km from the island of Sulawesi. On this island, there are about 88500 people who live as farmers and fishermen. Even though they live as farmers and fishermen, they use electrical energy as an energy source for their daily needs. Currently, electrical energy comes from Diesel Power Plant (PLTD) with a nominal capacity of 13.19 MW, where the PLTD burns diesel oil every day. Currently, there is a policy from the Government that will stop the use of diesel oil so that the PLTD on Selayar Island will be replaced with a 20 MW Gas Engine Power Plant (PLTMG). Selayar Island is an island that has great tourism potential, so it is necessary to think about providing clean and continuous electrical energy. Another alternative besides PLTMG is the use of 20 kV submarine cable networks. The use of the network will integrate the South Sulawesi electricity system and the Selayar Island electricity system. 20 kV submarine cable network as an alternative that Selayar Island does not have to build a thermal type power plant. So, this paper aims to explain the choice between building a PLTMG or supplying electricity via submarine cables on Selayar Island.