The billing and revenue management of consumers regarding the consumption of electrical energy is critical to the profitability and expansion of the electrical network. For distribution companies to start new projects and purchase new equipment, the loss in revenue due to non-payment of electricity bills must be eliminated. In this work, a complete solution for the Ikeja Government Residential Area (GRA) under Ikeja Electric Plc. has been designed to monitor consumers and identify billed (paying) customers and unbilled (non- paying) consumers. This study determines three core components: mapping of electricity distribution network assets and customers, identification of billed (paying) customers, and a comparison between unbilled (consumers of electrical energy) and billed customers. The research uses Geographic Information Systems (GIS) to capture the coordinates (longitude and latitude) of network infrastructures and consumers and then compares the results with those on the existing customer database to identify billed and unbilled customers. In the past, the system was traditionally done by conventional surveying method using analog equipment; storing data in analog maps and commissioning reports found mainly in drawing offices with no integration of these activities into one system.Electricity utilities need to keep a comprehensive and accurate inventory of their physical assets and customers. This presents a somewhat disjointed approach to the management of the electrical distribution network and revenue. GIS provides a database and a customer information system (CIS) to help utilize both spatial and customer information to manage customer billing accounts and revenue collection. Since the implementation of this system, the results obtained have revealed that GIS modeling is an effective way to tackle crucial problems of utilities with particular regard to customer energy accountability. The system has facilitated the identification of the best billing methodology that will be used to capture 1,985 consumers: 1,757 paying customers and 228 residential consumers (non-paying) that have caused the electricity distribution company N868,050; 198 single-phase customers = N632,610 and 30 customers three-phase customers = N235,440.

Keywords : Geographic Information Systems (GIS), Customer Information System (CIS), water supply, billing, distribution, residential customers, revenue monitoring, and management.