Impacts of photovoltaics and integrated green roofs on urban climate: Experimental insights for urban land surface modelling

Liutao Chen, Zinan Lin, Qi Zhou, Shihong Zhang, Mengying Li and Zhe Wang

Renewable and Sustainable Energy Reviews, 2025, vol. 217, issue C

Abstract: Previous studies examining the impact of large-scale photovoltaic (PV) roofs on urban heat islands (UHI) have reported inconsistencies, primarily due to reliance on simulations without robust experimental validation. This study addresses this gap through a six-month experimental investigation of four 200 m2 rooftop sites in subtropical Hong Kong. We compared a conventional bare roof, a PV roof, and two PV integrated green roofs (PVIGRs), providing the first real-world comparison of these configurations.

Keywords: Photovoltaic (PV) panels; Photovoltaic integrated green roofs (PVIGR); Building envelope; Urban heat island (UHI); Urban energy balance; Building energy consumption (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:rensus:v:217:y:2025:i:c:s136403212500382x

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DOI: 10.1016/j.rser.2025.115709

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