Generalized capacity factors for grid-intertie solar photovoltaic systems

J. M. Gordon, T. A. Reddy

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


We present a simple calculation and graphical procedure for direct determination of the annual capacity factor of no-storage grid-interie photovoltaic systems. This is applicable to the principal solar collector types and to a wide range of climates. This method provides "translation equations" for predicting both instantaneous power output (under any specified test conditions) and long-term average power output of photovoltaic modules from instantaneous measurements. Such a procedure, which we validate for one site only, should enable a designer to make accurate preliminary assessments concerning the suitability of potential sites and solar collector types by simple analytic calculations or, equivalent, by reading poinst off the graphs presented herein.

Original languageEnglish (US)
Pages (from-to)127-137
Number of pages11
JournalSolar Cells
Issue number3-4
StatePublished - Apr 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering


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