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Electricity in Households and Microenterprises

Electricity in Households and Microenterprises

Joy Clancy

(2001)

Additional Information

Book Details

Abstract

Most people in the world have either no access to electricity or a poor and unreliable supply, yet the importance of access to electricity cannot be overstated. This source book aims to provide practical help in gaining accessibility to electricity for those living in remote or rural communities as well as individual homeowners and small businesses. The book begins with a brief introduction to the national grid and then focuses on some of the possibilities for independent production of electricity in quantities used by households, micro-enterprises and small communities: diesel generators; micro-hydro; wind energy; solar photovoltaic energy (PV); gasifiers; biogas; steam and batteries. Descriptions of the technologies and their costs are given, as well as their different requirements in terms of inputs and skill requirements for installation and operation. Information and advice on using electricity is given; indications on how to calculate the technology size needed; and how to choose appropriate appliances. Case studies from developing countries highlighting successful women's initiatives using these technologies are supplied. Intended to provide resource material appropriate for use by extension workers, trainers and project staff working with women, who consider that access to electricity can play a significant role in their projects. Women's groups, active in promoting women's enterprises and education, can also use it for self-study or discussion.

Table of Contents

Section Title Page Action Price
Title Page iii
Copyright Page iv
Table of Contents v
Acknowledgements viii
1: The Benefits of Electricity 1
Introduction 1
Using this Book 2
Scope of the Source Book 3
2: Getting Connected 7
Introduction: Making a Preliminary Assessment 7
Electrical Terminology 7
Assessing Electricity Needs 10
How much Electricity is Needed? 13
Community or Individual Electricity System? 13
3: Electricity from the Grid 17
How the Grid Works 17
Organizational Structure of Grid Supply 17
Cost of Grid Electricity to the Consumer 20
Connection Fees 20
Tariffs 21
Paying for Electricity Consumption 22
Lobbying for Grid Connection 22
Comparing Costs of Grid Electricity with Stand-alone Systems 25
Fluctuations in Demand and How they Influence System Selection 28
Conclusion 28
4: Stand-alone Generation of Electricity 30
Introduction 30
Diesel Generators 31
Introduction 31
How Diesel Generators Work 31
Costs 32
Resources Required 32
Users 32
Reliability, Maintenance and Safety 32
Expertise Needed 33
Environmental Impacts 33
Conclusion 34
Micro-hydro Power 34
Introduction 34
How Micro-hydro Systems Work 35
Main Types of Turbine Available 36
Costs 38
Resources Required 39
Users 39
Reliability, Maintenance and Safety 39
Expertise Needed 40
Environmental Impacts 40
Conclusion 41
Wind Energy 42
Introduction 42
How Wind Generators Work 43
Costs 45
Resources Required 46
Users 47
Reliability, Maintenance and Safety 47
Expertise Needed 48
Environmental Impacts 48
Conclusion 49
Solar Electric Energy 49
Introduction 49
How Solar Electric Energy Works 49
Sizing a Solar System 51
Costs 52
Resources Required 52
Users 52
Reliability, Maintenance and Safety 53
Expertise Needed 53
Environmental Impacts 53
Conclusion 53
Gasifiers 55
Introduction 55
How Gasifiers Work 55
Gasifier Sizes 56
Costs 57
Resources Required 57
Users 59
Reliability, Maintenance and Safety 59
Expertise Needed 60
Environmental Impacts 60
Conclusion 61
Biogas 62
Introduction 62
How a Biogas Digester Works 62
Sizing the System 64
Costs 64
Resources Required 65
Users 65
Reliability, Maintenance and Safety 66
Expertise Needed 67
Environmental Impacts 67
Conclusion 69
Steam 69
Introduction 69
How Steam Power Works 69
Sizes Available 70
Costs 70
Resources Required 71
Users 71
Reliability, Maintenance and Safety 71
Expertise Needed 72
Environmental Impacts 72
Conclusion 73
Batteries: An Option for Stand-alone Generation of Electricity or a Storage Facility 73
Battery Size 73
Sizing a Battery System 74
Costs 74
Reliability, Maintenance and Safety 75
RPS and Batteries 76
Battery Types for Use with RPS 76
Reliability, Maintenance and Safety 77
Environmental Impacts 78
Costs of Small-scale Energy Systems 78
Making the Selection 80
5: Financial Aspects 83
Conducting a Financial Analysis 83
Access to Credit 85
6: Wiring and Other Safety Aspects 86
Household Circuits 86
Safety Aspects 88
7: Facilitating Women's Access to Stand-alone Electricity Generating Systems 90
Sizing the Demand 90
Assessing the Technology 90
Assessing the Community 91
Financial Institutions 91
Giving Women the Confidence to use Electricity and to Participate in its Generation 91
Becoming an Energy Entrepreneur 92
8: Resources 95
Bibliography 95
Internet Sites 97
Useful Organizations 98
Appendices 100
1: Electricity Basics 100
2: Conductors and Resistors 102
3: Important Points for Entrepreneurs Using Induction Motors 103
4: Important Relationships Involving Current and Voltage 104
Acronyms 104