Assessment of energy performance of semi-transparent PV insulating glass units using a validated simulation model

Meng Wang, Jinqing Peng, Nianping Li, Lin Lu, Tao Ma, Hongxing Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

56 Citations (Scopus)


Combined with the measured optical and electrical characteristics of the PV laminate, an integrated model was developed to simulate the overall energy performance of the PV IGU in EnergyPlus. Outdoor experiments were conducted to validate the accuracy of the simulation model. The proper consistency between the simulation results and the experimental data indicated that the simulation model was reliable for predicting the overall energy performance of PV IGU. With the validated model, a sensitivity analysis was conducted to investigate the influences of air gap depth and rear side glass, and an optimal design scheme was proposed to maximize the energy efficiency of PV IGU in Hong Kong. Finally, the energy saving potential of the optimized PV IGU compared to the other commonly used window systems was evaluated. It was found that the energy saving potential of the optimized PV IGU was 25.3% and 10.7%, respectively, compared to the single clear glass window and the Low-E glass window. The methodology developed in this study is expected to provide a useful reference for simulating the energy performance of PV IGU.
Original languageEnglish
Pages (from-to)538-548
Number of pages11
Publication statusPublished - 1 Jan 2016


  • Building integrated photovoltaic (BIPV)
  • Energy saving potential
  • EnergyPlus
  • Insulating glass unit (IGU)
  • Semi-transparent PV laminate

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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