Comparative performance assessment of four BIPV roof solutions in the Netherlands

M.J. Ritzen, Z.A.E.P. Vroon, R. Rovers, C.P.W. Geurts

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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A significant amount of global energy consumption takes place in the built environment, with as collateral effect CO2-related climate change. One of the strategies to realize a significant CO2 reduction is by integrating photovoltaic modules in the building envelope (BIPV). Disadvantages of BIPV include a possibly lower energy output and a possibly decreased life span due to the lack of optimal cooling of the PV modules. Currently, cooling of PV modules is usually realized by passive back-string ventilation, which is under strain when integration PV modules in the building envelope. In this study, a comparative field study of BIPV is conducted in the field lab ‘The District of Tomorrow’ to generate insight into BIPV efficiency as a function of back-string ventilation. This paper presents a selection of the monitoring results of the realized system, consisting of 24 PV modules in 4 segments with a total of 6000 Wp output with different amounts of back-string ventilation. The measurements indicate that in a moderate climate BIPV solutions without back-string ventilation result in increased operating temperatures, lower electricity output and condensation between PV modules and rooftop surface. To decrease relative humidity levels and operating temperatures to acceptable values, back-string ventilation is seen as an effective cooling medium in the presented field case.
Original languageEnglish
Title of host publicationProceedings ICBEST 2014
EditorsR.D. Lieb
Place of PublicationAachen, Germany
Number of pages17
Publication statusPublished - 2014
EventBuilding for a Changing World (ICBest 2014), June 9-12, 2014, Aachen, Germany - Aachen, Germany
Duration: 9 Jun 201412 Jun 2014


ConferenceBuilding for a Changing World (ICBest 2014), June 9-12, 2014, Aachen, Germany
Abbreviated titleICBest 2014


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