The role of view factors in solar photovoltaic fields

Research output: Contribution to journalReview articlepeer-review


The solar radiation on photovoltaic collectors in a solar field, deployed in multiple rows, consists of the direct beam, diffuse and reflected radiation. The amount of the diffuse and reflected radiation on the collector depends on view factor of the collector to sky, to ground and to surrounding objects. As shading takes place in the PV field, part of the ground between the collector rows may be shaded and another part may not be shaded, at any instant of time. To calculate the incident radiation of a PV field it is important to calculate the various types of view factors. In this paper, analytical expressions and numerical values of view factors were developed between collectors to sky Fsky, between opposite collectors FA→H, and between collectors to shaded Fgrd.s and not shaded grounds, for the front and rear sides of the collectors deployed on horizontal and inclined planes.

Original languageEnglish
Pages (from-to)161-171
Number of pages11
JournalRenewable and Sustainable Energy Reviews
StatePublished - 2018


  • PV fields
  • Shaded and unshaded grounds
  • View factors to sky, ground and between collectors


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