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Techno-Economic Analysis of Rooftop Photovoltaic System under Different Scenarios in China University Campuses

Author

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  • Xingyu Zhu

    (School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
    Shandong Institute of Mechanical Design and Research, Jinan 250031, China)

  • Yuexia Lv

    (School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
    Shandong Institute of Mechanical Design and Research, Jinan 250031, China)

  • Jinpeng Bi

    (School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
    Shandong Institute of Mechanical Design and Research, Jinan 250031, China)

  • Mingkun Jiang

    (SPIC Qinghai Photovoltaic Industry Innovation Center Co., Ltd., Xi’an 710000, China)

  • Yancai Su

    (School of Mechanical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
    Shandong Institute of Mechanical Design and Research, Jinan 250031, China)

  • Tingting Du

    (School of Energy and Power Engineering, Shandong University, Jinan 250061, China)

Abstract

The expansively unutilized rooftop spaces in the university campuses can provide an excellent opportunity for the installation of solar photovoltaic systems to achieve renewable electricity generation and carbon dioxide reduction. Based on available rooftop areas and local solar radiation situations, technical potential and economic benefits of rooftop photovoltaic system under seven scenarios were carried out for three university campuses located in different solar zones in China. The potential capacity of photovoltaic installations on building’s flat rooftops in Tibet University, Qinghai University, and Qilu University of Technology reaches 11,291 kW, 9102 kW, and 3821 kW, corresponding to the maximum annual power generation of 28.19 GWh, 18.03 GWh, and 5.36 GWh, respectively. From the perspective of economic analysis, PV systems installed in “full self-consumption” mode are superior to those installed in “full-feed-into-grid” mode for all three study cases. The highest return on investment of PV systems installed on flat and pitched rooftops can be achieved at 208% and 204%, respectively, in Tibet University. The payback period for PV systems installed on flat rooftops is 1 year in Tibet University, and less than 8 years for both Qinghai University and Qilu University of Technology, respectively. Results reveal that rooftop photovoltaic systems can significantly help the universities to move towards sustainability.

Suggested Citation

  • Xingyu Zhu & Yuexia Lv & Jinpeng Bi & Mingkun Jiang & Yancai Su & Tingting Du, 2023. "Techno-Economic Analysis of Rooftop Photovoltaic System under Different Scenarios in China University Campuses," Energies, MDPI, vol. 16(7), pages 1-18, March.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:7:p:3123-:d:1111151
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    References listed on IDEAS

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    1. Kyoik Choi & Jangwon Suh, 2023. "Fault Detection and Power Loss Assessment for Rooftop Photovoltaics Installed in a University Campus, by Use of UAV-Based Infrared Thermography," Energies, MDPI, vol. 16(11), pages 1-16, June.

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