ABSTRACT
 The objective of this study was to evaluate the internal control system in operation at power holding company of Nigeria Plc in Enugu State with a view to knowing its impact on revenue generation in the state. A sample of 40 was selected for the study randomly. The questionnaires were used in gathering the primary data while secondary data were collected from the work of others in the form of literature review. The data collected were analyzed using the chi-square (x2) as the statistical tool to determine the valuation of the hypothesis. The findings concluded that weak internal control system encourages collusion fraud loss of revenue, embezzlement and computation. This have always impeded the company’s ability to effectively supply electricity to customers and there from generate revenue. Internal audit system ensures operations compliance with set policies, promoting accuracy and reliability of transactions recording. In addition, effective internal control system ensure effective recommends the remodeling of the company’s internal control system and strengthening of the investigating unit. The components sectors of the present corporate Power Holding Company of Nigeria PLC should be unbundled into separate distinct independent entities that handle generation, transmission, distribution and marketing. It further recommends that prepaid meters should be seen as an alternative to further accumulate debts. 
 
 
 LIST OF FIGURES
 Figure 2.1 Classifications of Departments Goals and Objective
 Figure 2.2 Classification of Business objectives and related risks
  
 TABLE OF CONTENTS
 Title page
 Certification
 Dedication
 Acknowledgement 
 List of figures 
 Abstract 
 Table of contents
 
 CHAPTER ONE:INTRODUCTION
 1.0Background Of The Study
 1.1Statement Of Problem
 1.2Objective Of The Study
 1.3Significance Of The Study
 1.4Scope and Limitation Of The Study
 1.5Research Hypothesis
 1.6Research Questions
 1.7Historical Background of Power Holding Company of Nigeria
 1.8Definition of Terms
 
 CHAPTER TWO: 
 REVIEW OF RELATED LITERATURE
 2.1What is Revenue?
 2.2What is Internal Control System
 2.3Objectives of Internal Control System
 2.4Types of Internal Control System
 2.5Components of Internal Control System
 2.6Functions of Internal Control System
 2.7Roles and Responsibilities.
 2.8Internal Control System And The Auditors
 2.9Operation Of Internal Control System At Power Holding Company Of Nigeria
 2.10Limitation Of Internal Control System
 
 CHAPTER THREE
 RESEARCH METHODOLOGY 
 1.1Research Design
 1.2Sources Of Data
 1.3Population Of The Study
 1.4Sample Size
 1.5Description Of Questionnaire
 1.6Method of Data Analysis
 1.7Statistical Test For Hypothesis
 
 CHAPTER FOUR
 DATA PRESENTATION, ANALYSIS AND INTERPRTATION
 4.1Data Analysis and Interpretation
 4.2Test Of Hypothesis
 4.2.1Hypothesis One
 4.2.2Hypothesis Two
 
 CHAPTER FIVE
 SUMMARY OF FINDINGS, CONCLUSION AND RECOMMENDATION
 5.1Summary Of Findings 
 5.2Conclusion
 5.3Recommendation 
 5.4Suggestions For Further Investigation
 Bibliography
 Appendices