This work aims to assess the impact of dispersed wind generators (DWG) on the operation of distribution systems and determine the optimal location and penetration level (PL) of these generators with multi-system constrains to achieve a single and multi-objectives function. Genetic algorithm (GA) and SWARM are used as a modern optimization techniques, also the conventional linear programming (LP) technique also been employed to confirm the optimization results obtained by both GA and SWARM techniques, when they applied to assess the impact of DWG on an Egyptian utility operation. These impacts included active and reactive power losses and voltage profiles.