Photovoltaics: Basic Principles and Components

If you are thinking of generating yourown electricity, you should consider aphotovoltaic (PV) system a way to gen-erate electricity by using energy from thesun. These systems have several advan-tages: they are cost-effective alternatives inareas where extending a utility power lineis very expensive; they have no movingparts and require little maintenance; andthey produce electricity without pollutingthe publication will introduce you to thebasic design Principles and Components ofPV systems. It will also help you discussthese systems knowledgeably with anequipment supplier or system this publication is not intended tocover everything about designing andinstalling a PV system, a list of additionalPV resources is provided at the end. Introduction to PV TechnologySingle PV cells(also known as solarcells ) are connected electrically to formPV modules,which are the building blocksof PV systems.

lites, and cellular telephones; ... tains, and buildings that might shade the modules. Consider both summer and winter paths of the sun, as well as the growth of trees and future construction that may cause shading problems. Finally, the unobstructed southern expo-

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