The main objective of this book is to present some of the loss reduction methods in Electrical distribution systems. There are many different ways to reduce the losses and improve the performance of the distribution systems. Within the scope of this book, optimal capacitor placement, network reconfiguration and the two hybrid methods are presented. The introductory aspects related to Electrical distribution systems, factors affecting distribution system losses, loss reduction methods and literature survey in this area are presented in Chapter-1. Chapter-2 introduces an efficient branch current method to obtain the load flow solution of radial distribution systems. The findings of the proposed branch current load flow method tested on different static load models namely constant power load model, constant current load model, constant impedance load model and exponential load model are reported. Load growth is also considered. Chapter-3 presents different methods developed for the optimal capacitor placement problem. A two-stage methodology is used for the optimal capacitor placement.