A Gis and Remotes Sensing Approach for Modelling Solar Radiation Potential Sites for Grid Connected Photovoltaic Power Plant Sites Selection: a Case Study of East Shewa Zone in Oromiya Regional State, Ethiopia

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Addis Ababa University


The exhaustion of fossil fuel resources on a worldwide and climatic effects resulted from the emission Co2 and other gases to the atmosphere has forced world’s agenda toward search for alternative Energy sources. Solar energy; is clean, inexhaustible and environment-friendly sources of energy. It can be changed into electricity to satisfy demands through grid connected energy systems, which combine solar and conventional units. The Aim of this study were; modeling solar energy potential, delineate suitable sites for grid connected solar PV farm, and calculate annual electric power generating capacity of solar PV farms in East Shewa Zone . In order to analyses solar energy potential the Study this study Digital Elevation Model (DEM), Geographic Information Systems (GIS) based Multi Criteria Analysis (MCA) and Remote Sensing techniques along pairwise comparison were employed. As result, with a total area of 827 km2, eastern, southern, central and northern part of the study areas were selected as an ideal location for large PV solar farm. In addition, annual electric power generated from the solar farms was calculated. As a result 1.46 TW electric powers can be generated from the selected sites and fed to Grid connected solar PV system. Based on the analysis result can conclude if the solar energy potential of the study area is fully utilized it can solve energy problem of the zone as well as the country.



Solar Radiation, GIS, MCA, Photovoltaic, East Shewa