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Analysis of the Output Characteristics of a Vertical Photovoltaic System Based on Operational Data: A Case Study in Republic of Korea

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  • Seung-Min Lee

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

  • Eui-Chan Lee

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

  • Jung-Hun Lee

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

  • Sun-Ho Yu

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

  • Jae-Sil Heo

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

  • Woo-Young Lee

    (Edison Electrical Engineering, Co., Seoul 04789, Republic of Korea)

  • Bong-Suck Kim

    (KEPCO Research Institute, Korea Electric Power Corporation, Naju 58277, Republic of Korea)

Abstract

The proliferation of renewable energy sources to achieve carbon neutrality has rapidly increased the adoption of photovoltaic (PV) systems. Consequently, specialized solar PV systems have emerged for various installation purposes. This study focuses on grid connecting vertically installed bifacial PV modules facing east and west by establishing a test bed within Republic of Korea. Based on weather and generation data collected in Republic of Korea, located in the middle of latitude 34.98° N, from January to July 2023, we analyzed and compared the generation patterns, peak generation, peak hours, and total generation of conventional and vertical PV systems. Moreover, PVsyst was used to model the solar PV generation and analyze the consistency and viability of vertical PV generation by comparing actual operational data with simulation results. The vertical PV system demonstrated a peak power generation of 89.1% compared with the conventional PV system with bifacial modules. Based on operational data from January to July, the power generation output of the vertical PV system decreased to 65.7% compared with that of the conventional system with bifacial modules. This corresponded to 78.8% to 80.2% based on the PVsyst simulation results. In particular, the investigations related to the peak generation levels and occurrence times of vertical PV systems provide insights into the practicality of vertical solar PV systems and their potential for improving the PV hosting capacity.

Suggested Citation

  • Seung-Min Lee & Eui-Chan Lee & Jung-Hun Lee & Sun-Ho Yu & Jae-Sil Heo & Woo-Young Lee & Bong-Suck Kim, 2023. "Analysis of the Output Characteristics of a Vertical Photovoltaic System Based on Operational Data: A Case Study in Republic of Korea," Energies, MDPI, vol. 16(19), pages 1-14, October.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:19:p:6971-:d:1254524
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    References listed on IDEAS

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    1. Khan, M. Ryyan & Hanna, Amir & Sun, Xingshu & Alam, Muhammad A., 2017. "Vertical bifacial solar farms: Physics, design, and global optimization," Applied Energy, Elsevier, vol. 206(C), pages 240-248.
    2. Chudinzow, Dimitrij & Nagel, Sylvio & Güsewell, Joshua & Eltrop, Ludger, 2020. "Vertical bifacial photovoltaics – A complementary technology for the European electricity supply?," Applied Energy, Elsevier, vol. 264(C).
    3. Sun, Xingshu & Khan, Mohammad Ryyan & Deline, Chris & Alam, Muhammad Ashraful, 2018. "Optimization and performance of bifacial solar modules: A global perspective," Applied Energy, Elsevier, vol. 212(C), pages 1601-1610.
    4. Jouttijärvi, Sami & Lobaccaro, Gabriele & Kamppinen, Aleksi & Miettunen, Kati, 2022. "Benefits of bifacial solar cells combined with low voltage power grids at high latitudes," Renewable and Sustainable Energy Reviews, Elsevier, vol. 161(C).
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