Optimization and Cost Analysis of an Off-Grid Hybrid Power System for Rural Electrification: A Case Study of Pawi District, Ethiopia

Öz

Hybrid power systems have become one of the most fascinating and exciting fields in the research industry due to the reliability and efficiency of power systems. Off-grid and grid connected hybrid power system optimizations are designed for the electrification of rural areas. The main objectives of this study are designing and optimizing of an off-grid hybrid power system rural electrification for Ketena 1 Mender 127, which is located in Ethiopia. In the study, Four combinations of hybrid energy systems are performed and designed. To meet the region’s load demand, the study includes a photovoltaic system (PV), wind turbines (WT), diesel generators (DG) and battery energy storage systems (BESS). For the optimization of hybrid renewable energy system (HRES), HOMER software and Genetic Algorithm (GA) approaches are proposed and based on their cost expense and unmet load, the comparison tests are conducted. The optimal size of the hybrid power system is determined through minimization of the cost of energy (COE), total net present cost (NPC) while satisfying constraints. According to the results, the proposed GA outperforms higher efficiency, lower COE, NPC and unmet load than HOMER software.

Anahtar Kelimeler

• Optimal size
• HOMER software
• Hybrid energy system
• Genetic algorithm

Kaynakça

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