In this paper, the effect of PV/FC hybrid power generation system on total line loss of distribution network has been studied. Studies have been conducted on a real life 20 kV distribution network. A DPL (DIgSILENT Programming Language) code is developed to analyze the effect of the PV/FC hybrid system on total line loss in distribution network. Simulations, in three loading conditions and by considering worst environmental conditions (cloudy weather, at nights, etc) that output power of PV system is zero have been done. Sample distribution network has been considered in two structures: 1-sample distribution network by PV system as DG and 2same distribution network but by PV/FC hybrid power system as DG. The Simulation results illustrate the effectiveness of PV/FC hybrid system in order to decrease the total line loss. . His current research interests include electromagnetic compatibility problems in power engineering and electromagnetic non-destructive evaluation of materials. He holds 3 patents and is the author or coauthor of one book and over 200 papers and technical reports.Hamed Hashemi Dezaki was born in 1986, Borujen, Iran. He received B.S. degree in electrical engineering from Amirkabir University of Technology, Tehran, Iran in 2009. Presently, he is a M.Sc. student at the department of electrical engineering of Amirkabir University of Technology, Tehran, Iran. His main fields of research are power system transient and protection of power systems, power quality, high voltage, reliability, electrical insulation and using artificial intelligence in power system and distributed generation (DG).