@thesis{thesis, author={Pratama Putera Rizki and ZAKKI MUHAMMAD}, title ={STUDI PERENCENANAAN PEMBANGKIT LISTRIK TENAGA SURYA ON GRID DI GEDUNG PT. PLN (Persero) UP2B SUMBAGSEL}, year={2022}, url={http://156.67.221.169/5426/}, abstract={PT. PLN (Persero) UP2B Sumbagsel is a vital national object which is a control center for controlling the load of electricity transmission in Southern Sumatra, namely the provinces of South Sumatra, Bandar Lampung and Bengkulu which must be fulfilled by electric power facilities in real time so that the need for electricity costs at the PLN UP2B Sumbagsel office is very high. Therefore, solar panel energy is needed which can save efficient electricity payments and increase the reliability of system settings at the RCC (Regional Control Center). This study discusses the design of the on-grid PV mini-grid system using the HelioScope simulation method on the rooftop of PT. PLN (Persero) and calculate the performance ratio efficiency analysis. In the design using 162 solar panels of the Trina Solar brand, TSM-DE20-600W 320Wp, 2 inverters of the Huawei SUN2000-50KTL-M0 brand with a capacity of 50 kW and an AC Combiner Box containing protection and support equipment for this PLTS system. From the calculation results, it is necessary to calculate the performance and efficiency ratio of the PLTS system in order to know the operating system and the constraints that occur. Calculations can be done manually and calculations using the Helioscope software. From the results of manual calculations, the efficiency results are 66.08% and the performance ratio is 90%. While the results of calculations using Helioscope 7.2 software get an efficiency of 66.08% and a performance ratio of 79.5%.} }