Evaluation of Losses in Distribution Networks of Selected Industrial Cities in Nigeria Using ETAP

Abstract

Distribution losses contribute to energy shortages and therefore power outages in Nigeria's industries. This work evaluated the technical losses in the distribution networks of selected industrial cities in Nigeria. Power flow simulation of network data collected over the period 2011-2015 from three distribution companies (DisCos) domiciled in these cities was done by Newton-Raphson (N-R) technique using the Electrical Transient and Analysis Program (ETAP) software version 12.6. Results of the power flow simulation showed that between 2011 and 2015 covered by the study, the cities of Lagos, Kano and Port Harcourt recorded a total power loss of 15.8 MW, 36.2 MW and 6.04 MW respectively. The findings also revealed that overloaded power transformers is part of the reasons for high losses in the distribution networks of some of the cities. The outcome of the study provides a guide for system planners and utility companies in providing for prioritization and system upgrade to ensure improved efficiency of their distribution networks.

Optimization and Reduction of Losses in 330kv Power Systems for Efficient and Optimal Operation

“…The number of blackouts in a given locality each year means that the efficiency of power supply even as customer disappointment with power service is often connected to significant degree of blackouts (Amadi & Okafor, 2015;World Bank, 2009). Since the more the quantity of outages, the less productive the power framework, it follows that given higher framework losses (specialized and non-specialized), there would be more blackouts demonstrating the failure of the framework.…”

“…In 2014, ~46% of energy was lost through specialized (12%), business (6%), and assortment losses (28%) (Nigerian Power Baseline Report, 2015). Throughout the long term, researchers and scientists have ascribed blackouts to: Weak framework and obsolete power stations, hardware over-burdening, insufficient remuneration gear on the framework, climate and tree related elements, defacing, helpless upkeep culture, and so forth (Amadi & Okafor, 2015;Udoh, 2014;Samuel et al, 2012;Lave et al, 2005). Electrical power is a fundamental prerequisite for the advancement of any country, financially or economically.…”