@phdthesis{Dewi2018, author = {Dewi, Sari}, title = {Repowering public utility grid by integrating hydro, PV and wind into the grid to supply electricity in Palu (Indonesia)}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:co1-opus4-45472}, school = {BTU Cottbus - Senftenberg}, year = {2018}, abstract = {The use of renewable energy sources, either off-grid or on-grid to supply electricity, has been done by developed countries since many years ago. Developing countries, for example Indonesia especially east part of Indonesia have recently started this way whereas renewable energy potential for example hydro, PV and wind are abundantly available. The lack of research and data is one of the obstacles to precede the use of renewable energy in this area, meanwhile this area has electricity shortages problem that occurred quite often. Combined hydro, PV, wind, coal and diesel generators will solve electricity shortages problem in Palu (Indonesia). Integration of Hydro, PV and wind into PALAPAS utility grid will decrease levelized cost of energy from US\$ 0.145 per kWh to US\$ 0.133 per kWh. Sensitivity analysis against fluctuating fuel cost (from US\$ 0.4 per litre to US\$ 1.6 per litre) will increase levelized cost of energy before integrating renewable energy into the grid from US\$ 0.145 per kWh to US\$ 0.455 per kWh and will increase levelized cost of energy after integrating RE into the grid from US\$ 0.133 per kWh to US\$ 0.403 per kWh. Repowering grid with integrating hydro, PV and wind will increase power quality especially by using configuration based on homer results. Buses voltage and buses frequency showed better result before, during and after some faults based on Homer simulation results. Voltage spectrum and sinusoidal waveform voltage are showing less distortion after integrating hydro, PV and wind into the grid even with no distortion based on Homer results.}, subject = {Shortage; Repowering; Grid; Integration; Energy; Engpass; Erneuerung; Netz; Integration; Energie; Palu, Indonesien ; Erneuerbare Energien; Energieversorgungsnetz; Elektrizit{\"a}tseinspeisung}, language = {en} }