@thesis{thesis, author={Pasra Nurmiati and Putro Bayu Irianto Hadi}, title ={ANALISIS SUSUT DISTRIBUSI DAN BIAYA POKOK PENYEDIAAN TENAGA LISTRIK TERHADAP BEROPERASI GARDU INDUK SANDAI 150 KV}, year={2023}, url={http://156.67.221.169/5765/}, abstract={Main focus of PLN is to maintain the quality of electricity distribution and reduce the basic cost of supply. One of the efforts made is by building a substation and deactivating the PLTD. ULP Sandai supplies 27.532 customers using PLTD located in Kecamatan Nanga Tayap, Kabupaten Ketapang. Realized losses reached 2.814.914 kWh or 10,96% and BPP UP3 Ketapang reached Rp. 2.510,22 in the period January - June 2022.The losses are affected by uneven load condition and the length of the feeder causing losses in the form of undistributed kWh and poor service quality.. The Sandai substation in 2023 will operate in accordance with the electricity supply business plan for (RUPTL). The simulation results for losses before the Sandai substation operates is 3.210.384 kWh or 12,50% and after the substation operates it becomes 2.373.139 kWh or 9.24%, or according to the monthly target set by the company in 2022, which is 9,68%, then the realization of losses is achieved when the substation is operating. BPP UP3 Ketapang when the PLTD is deactivated it becomes Rp. 2.031.00. This value decreased by Rp. 479,22 or 19,11% of the BPP when using PLTD. Savings in generator operating costs include: PLTD rental fee of Rp. 791.139.300 / month, the cost of using fuel and lubricants is Rp. 9.886.295.436 / month and the cost of transporting fuel is Rp. 759.144.000 / month. Network reconfiguration at substations and location determination have an impact on improving ULP Sandai distribution losses and have an effect on reducing plant operating costs.} }