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Energy potential assessment and techno-economic analysis of micro hydro-photovoltaic hybrid system in Goda Warke village,Ethiopia

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Clean Energy 2024年第1期8卷 237-260页

作者： Ephrem Assefa Feyissa Getachew Shunki Tibba tarekegn limore binchebo Endeshaw Alemu Bekele Adem Tibesso Kole Department of Mechanical Engineering Bule Hora UniversityBule HoraEthiopia Agro Technical and Technology College Menschen fuer Menschen FoundationHararEthiopia Faculty of Mechanical Engineering Jimma Institute of TechnologyJimmaEthiopia Department of Thermal Technology Silesian University of TechnologyGliwicePoland Jimma Agricultural Engineering Research Center JimmaOromia Agricultural Research InstituteEthiopia

Rural Ethiopia has significant untapped potential for hydro and solar energy generation ***,challenges arise from seasonal variations and unfavourable topographic positions of flowing rivers,hindering the efficient exploitation of these *** the country’s abundance in hydro and solar energy resources,>75%of the population still lack access to electricity from the national *** work deals with energy resource potential assessment and techno-economic analysis of micro hydro-photovol-taic(PV)hybrid systems,considered in the case study of Goda Warke village,located in the Yaya Gulele district.A novel framework is proposed that utilizes the Natural Resource Soil Conservation Service curve number method to assess the energy potential of micro-hydro energy in ungauged basins,specifically at the exit point of the Girar River basin *** average monthly flow rate in the basin is 0.975 m3/s,while the area exhibits a solar radiation potential of 5.39 kWh/m^(2)/*** policy promotes expanding ac-cess to modern energy sources and utilization of indigenous energy *** results indicate that the hydro/PV/diesel generator(DG)/battery and hydro/PV/battery systems are the most optimal choices based on net present cost,with the inclusion of a DG for economic ***-hydro energy covers most of the electric load in the area,achieving a capacity factor of 47.5%.The cost of energy and net present cost were found to be sensitive to variables such as the price of diesel fuel,pipe head loss,and the growth of the village *** optimized system demonstrated a hydro energy potential of 1405.37 MWh/year and a PV energy output of 274.04 MWh/year,resulting in a levelized cost of energy of 0.0057 and 0.049$/kWh for the hydro and PV components,respectively.

关键词： energy potential hybrid micro hydro-photovoltaic Natural Resource Soil Conservation Service curve number sensitivity variable

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