Impacts of the shading-type building-integrated photovoltaic claddings on electricity generation and cooling load component through shaded windows

L. L. Sun, Hongxing Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

35 Citations (Scopus)


The shading-type building-integrated photovoltaic (BIPV) claddings can act as power generators as well as external shading devices of a building, which reduce the energy consumption of the building. However, there is little information about energy impacts of different tilt angles of the shading-type BIPV claddings. By considering the typical meteorological conditions of Hong Kong, the energy performance of the shading-type BIPV claddings, in terms of the electricity generation and the cooling load reduction, is analyzed in this paper. The optimum tilt angle of PV modules for maximum electricity generation is found to be 20° instead of local latitude. Combining electricity generation and cooling load reduction, it can be concluded that the optimum tilt angles for the first type of the shading-type BIPV claddings vary from 30° to 50°, while the optimum tilt angle for the second type is 0°.
Original languageEnglish
Pages (from-to)455-460
Number of pages6
JournalEnergy and Buildings
Issue number4
Publication statusPublished - 1 Apr 2010


  • Cooling load
  • Electricity generation
  • Shaded window
  • Shading-type building-integrated photovoltaic claddings

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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