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Investigation of annual performance of a building shaded by rooftop PV panels in different climate zones of India

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  • Bhuvad, Sushant Suresh
  • Udayraj,

Abstract

Photovoltaics panels are generally used on rooftop for electricity generation. However, installation of PV on the rooftop also has potential impact on the heating and cooling load of the building. This work studied these indirect benefits of rooftop PV panels by conducting experiments in Raipur, India, and compared the results with the exposed roof. Further, mathematical model is presented to analyze the annual effect of PV shading in terms of thermal load saving and power generation. Annual variation of cooling/heating load, PV power generation and overall energy-saving efficiency index is presented for different climatic zones of India. Average annual reduction in the roof and ceiling temperatures for different cities are in the range 6.05–10.96 °C and 3.94–7.15 °C, respectively. Annual cooling load reduced by 70.33–94.37%. Although PV panels shading shows negative impact during the winter season by increasing the heating load of building in all the climatic zones, the overall thermal load of building may reduce up to 22.76–74.07%. Furthermore, the overall energy-saving efficiency index varies from 21.27 to 25.12%, with maximum efficiency observed for Jodhpur city followed by Raipur. Overall, this study highlights the potential of rooftop PV application in buildings under different climatic zones of India.

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  • Bhuvad, Sushant Suresh & Udayraj,, 2022. "Investigation of annual performance of a building shaded by rooftop PV panels in different climate zones of India," Renewable Energy, Elsevier, vol. 189(C), pages 1337-1357.
    • Handle: RePEc:eee:renene:v:189:y:2022:i:c:p:1337-1357
    DOI: 10.1016/j.renene.2022.03.004
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    References listed on IDEAS

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    1. Peng, Jinqing & Lu, Lin & Yang, Hongxing & Han, Jun, 2013. "Investigation on the annual thermal performance of a photovoltaic wall mounted on a multi-layer façade," Applied Energy, Elsevier, vol. 112(C), pages 646-656.
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    Cited by:

    1. Janusz Marchwiński & Agnieszka Starzyk & Ołeksij Kopyłow & Karolina Kurtz-Orecka, 2023. "Impact of Atrium Glazing with and without BIPV on Energy Performance of the Low-Rise Building: A Central European Case Study," Energies, MDPI, vol. 16(12), pages 1-25, June.
    2. Skandalos, Nikolaos & Wang, Meng & Kapsalis, Vasileios & D'Agostino, Delia & Parker, Danny & Bhuvad, Sushant Suresh & Udayraj, & Peng, Jinqing & Karamanis, Dimitris, 2022. "Building PV integration according to regional climate conditions: BIPV regional adaptability extending Köppen-Geiger climate classification against urban and climate-related temperature increases," Renewable and Sustainable Energy Reviews, Elsevier, vol. 169(C).
    3. Kapsalis, Vasileios & Maduta, Carmen & Skandalos, Nikolaos & Wang, Meng & Bhuvad, Sushant Suresh & D'Agostino, Delia & Ma, Tao & Raj, Uday & Parker, Danny & Peng, Jinqing & Karamanis, Dimitris, 2024. "Critical assessment of large-scale rooftop photovoltaics deployment in the global urban environment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 189(PB).

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