Energy poverty is a global phenomenon, with varying intensity across countries. Electricity is unarguably an important source of energy essential in satisfying the demand for modern energy services for socio-economic well-being, households‘ productivity and economic development of a nation. Despite the abundance of energy resources in Nigeria, an estimated 113 million people, representing about 70 per cent of the population, lack access to electricity, while the remaining 30 per cent have only intermittent and unreliable access. The thesis identifies and examines the causes and consequences of energy poverty and the role of energy (specifically electricity) in poverty reduction and as an engine of households‘ economic growth and prosperity. The study provides a pragmatic methodology of Geographic Information System (GIS) as an interface between development studies and energy geography. The thesis contributes to energy geography and resource management based on the deprivation experienced by households attributable to the failure of the public energy service delivery system. The poor reliability of the grid-based system has created an ―energy services gap‖ that is met by alternative costly backup off grid-solution of self-generation of electricity. The use of generators in most households is now the mainstay of electricity provision and has become the electricity provider, while the electricity provider is now standby. Households are consequently climbing down the energy ladder because electricity that is at the top of the ladder is not always available. The socio-economic suppression, depression and deprivation along with the financial burden on households‘ income are the bane of energy poverty in the study area. The study establishes that access is not the problem in an urban area in Nigeria but the inadequacy and unreliability of electricity supply in substantial quantity and reliable quality. To promote living and economic growth, it is desirable that households have secure and affordable electricity.