Evaluation of Pre and Post-privatization of Nigeria’s electric power system

Abstract

The study was aimed at evaluating the performance of Nigeria’s Electric Power System before and during Privatization using Akure 33kV distribution Network as a case study. This is done to ascertain the effectiveness of the Privatization programme that occurred in the Electric Power Sector in Nigeria. The amount of energy served, the peak load supplied and load flow data of the Network for periods of 2010 to 2015 were collated from the daily log entry recording sheets of the 132/33kV transmission substation office in Akure. The percentage transformer loading and power transferred across the line were determined through load flow studies. The cost of energy not served due to faults was evaluated at a rate of NGN 24.30k per Kilo-Watt Hour (KWHr). The analysis was for a period of pre-privatization (2010-2012) and post-privatization (2013-2015). The results from the study indicate that the energy served decreased by 9% from 2010 to 2015 while the cost of energy not supplied increased largely after the Privatization. A decreasing rate in peak load supplied and transformer loadings were also observed during the Privatization. These results show that less customers might have been served or customers being served by this utility system experienced power outages more frequently in the post-privatization period than in the pre-privatization era.