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Study on the Energy Consumption Characteristics and the Self-Sufficiency Rate of Rooftop Photovoltaic of University Campus Buildings

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Listed:
  • Lizhen Gao

    (Lanzhou Heating Power Group Co., Ltd., Lanzhou 730020, China)

  • Shidong Wang

    (Gansu Institute of Architectural Design and Research Co., Ltd., Lanzhou 730000, China)

  • Mingqiang Mao

    (Gansu Institute of Architectural Design and Research Co., Ltd., Lanzhou 730000, China)

  • Chunhui Liu

    (Gansu Institute of Architectural Design and Research Co., Ltd., Lanzhou 730000, China)

  • Tao Li

    (School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China)

Abstract

Campus buildings often face issues with high energy consumption, low efficiency, and significant carbon emissions, making the creation of a green, low-carbon campus urgent. Utilizing solar photovoltaics on rooftops can provide an effective power solution to address high energy consumption. This study focuses on a university campus, employing the DeST energy consumption simulation software to model the HVAC systems, electrical devices, and hot water loads of five typical buildings. It combines this with calculations of available rooftop areas to assess the potential for rooftop solar photovoltaics. The results confirm varying annual electricity consumption among the different buildings, which directly correlates with building size and operational schedules. Among the five building types, sports facilities and academic buildings have relatively high rooftop photovoltaic self-sufficiency rates, exceeding 60%, while the library has the lowest, under 20%. The entire university campus has an annual rooftop photovoltaic self-sufficiency rate of 35%, significantly addressing the issue of high energy consumption in university campuses. This research provides a theoretical basis for implementing rooftop photovoltaic systems to achieve campus energy savings.

Suggested Citation

  • Lizhen Gao & Shidong Wang & Mingqiang Mao & Chunhui Liu & Tao Li, 2024. "Study on the Energy Consumption Characteristics and the Self-Sufficiency Rate of Rooftop Photovoltaic of University Campus Buildings," Energies, MDPI, vol. 17(14), pages 1-16, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:14:p:3535-:d:1438040
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    References listed on IDEAS

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    1. Kourgiozou, Vasiliki & Commin, Andrew & Dowson, Mark & Rovas, Dimitrios & Mumovic, Dejan, 2021. "Scalable pathways to net zero carbon in the UK higher education sector: A systematic review of smart energy systems in university campuses," Renewable and Sustainable Energy Reviews, Elsevier, vol. 147(C).
    2. Jie Yang & Baorui Cai & Jingyu Cao & Yunjie Wang & Huihan Yang & Ping Zhu, 2023. "Comprehensive Characterization of Energy Saving and Environmental Benefits of Campus Photovoltaic Buildings," Energies, MDPI, vol. 16(20), pages 1-16, October.
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