63
chapter
THIS CHAPTER INTRODUCES PHOTOVOLTAIC strings, array configura-
tions, and sizing. The chapter begins with a brief overview of PV module
fundamentals. Next, it reviews sizing the system and choosing the PV
module. It then discusses array sizing along with a method for calculating
PV array yields.
Topics & Concepts
This chapter covers the following topics and concepts:
The systems approach to PV design
PV module fundamentals
System sizing and module choice
PV array sizing
System-modeling tools
Goals
After completing this unit, students are expected to be able to:
Describe the basic principles, methodologies, and strategies for sizing
photovoltaic systems according to the National Electrical Code (NEC) and
for performance,
Discuss system sizing and module choice,
List module-selection criteria,
Calculate the yield of a PV array.
Photovoltaic
Array Confi guration
and Sizing
4

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