Analysis of the network performance and development of electricity transmission plan: A case study of Kenya’s Coast region

Abstract

Performance of the Transmission network for Kenya’s Coast region: Pertinent data from the transmission utilities in Kenya was collected and used to develop Coast region’ s electricity network models for years 2039 (the target year), 2035, 2030,2025,2022, 2020 and 2019 in PSS/E. Loadflow calculation using Newton Raphson was employed to analyze the models for both normal and contingency conditions. The performance of the regional network in terms of efficiency and security was determined. Results indicated an above 95% efficiency, the network however does not meet N-1 security requirement. Additional reinforcements are suggested to improve the network. An improved network was later developed by modelling the suggested elements into the initial models and the models analyzed once again. With the reinforcements, 97% efficiency and compliance to N-1 security requirement is achieved. Subsequently, a transmission plan with an implementation schedule and estimated project costs was developed.