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Access to electricity in rural Ethiopia is a major challenge, forcing reliance on traditional energy sources. This study models and sizes an off-grid hybrid solar-wind energy system with battery storage for electrifying the remote village of Ferfer using HOMER software. Various energy resource combinations, including solar, wind, grid extension, and diesel, were compared and analyzed. The analysis revealed that a hybrid solar photovoltaics (PV)/wind/battery system with a photovoltaic rating of 121 kW, a 5.1 kw (14-piece) wind turbine, and a battery capacity of 1028 kWh, with a cost of energy (COE) of $0.2236/kWh and a total net present cost (NPC) of 1,146,830 over a 20-year life span, was the most ideal and preferred option for electrification of Ferfer Kebele. The hybrid solar-wind-battery system is emissions-free compared to diesel generators and offers savings of about $32.6 million versus extending the national grid. Sensitivity analysis showed the system’s responsiveness to factors like load consumption, capital cost, and climate conditions, confirming it as a feasible and economically viable solution for Ferfer Kebele.

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Modeling and Optimal Sizing of an Off-Grid Solar-Wind-Based Hybrid Energy System for Rural Electrification in Ethiopia: A Case Study in Somali Regional State, Ferfer Kebele

  • 会议论文

  • 发表日期：

    2026年

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  • Zerihun Shimelis Abebe,
  • Mezigebu Getinet Yenealem

摘要

Access to electricity in rural Ethiopia is a major challenge, forcing reliance on traditional energy sources. This study models and sizes an off-grid hybrid solar-wind energy system with battery storage for electrifying the remote village of Ferfer using HOMER software. Various energy resource combinations, including solar, wind, grid extension, and diesel, were compared and analyzed. The analysis revealed that a hybrid solar photovoltaics (PV)/wind/battery system with a photovoltaic rating of 121 kW, a 5.1 kw (14-piece) wind turbine, and a battery capacity of 1028 kWh, with a cost of energy (COE) of $0.2236/kWh and a total net present cost (NPC) of 1,146,830 over a 20-year life span, was the most ideal and preferred option for electrification of Ferfer Kebele. The hybrid solar-wind-battery system is emissions-free compared to diesel generators and offers savings of about $32.6 million versus extending the national grid. Sensitivity analysis showed the system’s responsiveness to factors like load consumption, capital cost, and climate conditions, confirming it as a feasible and economically viable solution for Ferfer Kebele.