This work presents a study of electrical grids' management in view of optimizing them. It has two main objectives: (i) to use an ETAP simulation software tool for electrical grid diagnostics and (ii) to compensate the power factor of an electrical grid for isolated sites in Niger. wer System Dynamics Simulation, Department of Electrical and Electronics Engineering, School of Postgraduate Studies Faculty of Engineering Nigerian Defence Acadamy Kaduna P nsive reliability assessment of power distribution systems, focusing on frequent power outages, the integration of smart. 1Laboratoire d'Energétique, d'Electronique, d'Electrotechnique, d'Automatique et d'Informatique Industrielle (L3EA2I), Université Abdou Moumouni de Niamey. 2Centre Emergent Africain Innovant d'Enseignement / Apprentissage des Mathématiques et Sciences pour l'Afrique Sub-Saharienne (CEA/IEA-MS4SSA). Without robust Automation in Substation & Transmission Systems, utilities face immense challenges in managing complex power flows, integrating distributed energy resources, and meeting the escalating demands for a smarter, more adaptive, and self-healing electrical infrastructure. This. This paper aims to quantify the improvements achieved in the reliability indices with the automation of secondary substation (SS). Ifeoluwa Oyedele, the Executive Director of.