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This work presents the development of a grid-based rural electrification design using Ishashi and Ilogbocommunities in Lagos State, South Western Nigeria as case studies. Grid-based and off-grid based methods are two commonly employed rural electrification technologies but in this work grid-based method was employed because of its simplicity, flexibility, sustainability and cost effectiveness. Load audits of Ishashi and Ilogbo were carried out to determine their energy demands. To cater for future expansion of both communities, a fifteen year load growth was calculated using the derived load growth equations. Design equations were used to determine ratings and quantities of substation components required for the electrification. The inter-township connection and township distribution network lengths for both Ishashi and Ilogbo were also determined. The proposed electrical model designs for the two communities were implemented using AutoCAD 2012 Version Software. The energy demand of both Ishashi and Ilogbo were respectively 0.91 MW and 0.61 MW and their estimated fifteen years load growth were 3.26 MW and 2.20 MW respectively. The average load demand of both Ishashi and Ilogbo were respectively 1.31 MW and 0.88 MW using a load factor of 0.4. With the use of average load demand, the inter-township connection and township distribution network lengths of Ishashi (2.65 km and 8.72 km respectively) and Ilogbo (1.13 km and 7.44 km respectively), the required quantities of the major substation components required for implementation of developed electrical model designs were obtained.

Development of a Grid-Based Rural Electrification Design: A Case Study of Ishashi and Ilogbo Communities in Lagos State, South Western Nigeria