Effects of Agrivoltaic Systems on the Surrounding Rooftop Microclimate

Jerome Wei Chiang Teng, Chew Beng Soh, Shiddalingeshwar Channabasappa Devihosur, Ryan Hong Soon Tay and Steve Kardinal Jusuf
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Jerome Wei Chiang Teng: Sustainable Infrastructure Engineering (Building Services) Progamme, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
Chew Beng Soh: Engineering Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
Shiddalingeshwar Channabasappa Devihosur: Engineering Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
Ryan Hong Soon Tay: Food, Chemical and Biotechnology Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore
Steve Kardinal Jusuf: Engineering Cluster, Singapore Institute of Technology, 10 Dover Drive, Singapore 138683, Singapore

Sustainability, 2022, vol. 14, issue 12, 1-13

Abstract: Agrivoltaic systems have the potential to maximize the usefulness of spaces in building rooftops. Urban farming systems improve the microclimatic conditions, which are beneficial to solar photovoltaic (PV) systems, as they lower the operating temperatures, resulting in a higher operating efficiency. Microclimate simulations by means of ENVI-met simulation showed that between 0800 h and 1800 h, PV temperatures in the plot that has crops below the PV system were on average lower by 2.83 °C and 0.71 °C as compared without crops on a typical sunny and cloudy day, respectively. Hence, we may see PV efficiency performance improvement of 1.13–1.42% and 0.28–0.35% on a sunny day and cloudy day, respectively. Data collected from a physical prototype of an agrivoltaic system suggested that evaporative cooling was responsible for the reduction in ambient temperatures. The presence of crops growing underneath the PV canopy resulted in the agrivoltaic prototype generating between 3.05 and 3.2% more energy over the day as compared to a control system with no crops underneath.

Keywords: agrivoltaic; microclimate; evapotranspiration; ENVI-met; simulation; roof top (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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