This document summarizes a research paper that investigates the optimal allocation and sizing of distributed generation (DG) units in a distribution system using Particle Swarm Optimization (PSO). The objective is to minimize voltage deviation and total power loss. A 33-bus distribution network is used as a case study. The results show that allocating 3 DG units at buses 18, 14, and 17 with sizes of 1.7154 MW, 0.1908 MW, and 1.6159 MW respectively reduces voltage deviation at all buses and total power loss by 89.83%. The PSO technique effectively finds the optimal DG locations and sizes to improve the voltage profile and minimize losses in the distribution network.