Chapter 1: Introduction: Electrical-Energy Revolutions and Smart Grids.- Part I: Smart Prepaid Electricity Meters.- Chapter 2: Rationale Part I: Historical Development and Market Expansion.- Chapter 3: Rationale Part II: A Misdiagnosis of Non-payment and Electricity Theft.- Chapter 4: 4 Prepaid Electricity Meters and Energy Poverty-Lesson from South Africa.- Part II Sub-Saharan Region: Adoption and Experiences.- Chapter 5: Western Africa Region.- Chapter 6: Eastern Africa Region.