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close this book Fact Sheets of Selected Photovoltaic Applications
View the document Foreword
View the document 1. Introduction
Open this folder and view contents 2. Method of pv system sizing
Open this folder and view contents 3. Method of economic analysis
Open this folder and view contents 4. Assumptions and remarks
Open this folder and view contents 5. Concluding Remarks


Much has been written about the prospects of photovoltaic systems for developing countries. A growing number of field trials is being undertaken worldwide and moderate success has been reported concerning the commercial introduction of standardized package units for small-scale purposes.

We in the GTZ are convinced that environmentally sound photovoltaic technology will be of increasing significance for countries of the Third World, given that system costs are expected to further decrease. By commission of the Federal Government, we have started already several years ago with testing and demonstration of photovoltaic applications, thereby taking the first steps toward market introduction.

Such units have in common that they are to serve individual electricity demands ranging from several watts like a Solar Home System to several kilowatts like a village Drinking Water Supply. Moreover, these units may differ greatly according to site and their user conditions. This specificity of photovoltaic systems along with continuing pressure from competing conventional energy supplies calls for collecting "facts and figures" about potential photovoltaic applications. Detailed insight into the user's demand and the local conditions including component prices, competitors and solar radiation data forms one of the bases for market development. Such clarification also helps both to cut cost for feasibility assessments and to standardize equipment. Finally, buying a photovoltaic unit is a major venture for a rural household; accordingly, the client ought to be well-informed about the expected financial consequences.

This collection of "Factsheets", compiled after several years of experience in the Philippines, is intended to complement strategic considerations about decentralized energy supplies through the presentation of practice oriented data.

For the example of the Philippines, but most likely also for countries with similar weather and climatic conditions and socio-economic structures, the Fact Sheets should help in designing projects and photovoltaic equipment thus serving as an input both for technical cooperation and commercial activities.

G. Oelert

E. Biermann

Head of Division

Senior Technical Advisor