Challenges associated with electrical power generation as well as transmission and distribution using overhead and underground cables

Abstract

Distribution aspect of electrical system has been identified as constituting the greatest risk to realizing uninterrupted power supply. The rate of power outages has been very rampant in recent times. In this regard, this study examined the challenges associated with electrical power generation as well as transmission and distribution using overhead and underground cables within the Northern Electricity Distribution Company (NEDCo). Data for the study was obtained using structured questionnaires and interview guides. In all, 69 respondents participated in the study. This comprised of 65 technical staff and four management staff of NEDCo. Quantitative data analysis was performed using the Statistical Products and Service Solutions (SPSS), version 18. Generally, the study concluded that overhead cables are most effective in the generation, transmission and distribution of electrical power as construction and maintenance of the overhead cables is cheaper than the construction of underground cables. Fault detection and elimination in underground cables consumes a lot of money and time spending as compared to that of overhead cables. The major causes of power outages in NEDCO are external factors such as trees falling on overhead cables and bush fires destroying overhead cables. The study recommends that NEDCo through the Ministry of Energy should provide with appropriate and modern technology for the monitoring of power. Also, the government is encouraged to upgrade the distribution network. There should be rehabilitation of old lines and also injection of new substations which would solve the low voltages and outages in the catchment areas.