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Thermal behavior of floating photovoltaics: A comparison of performance at varying heights and benchmarking against land-based photovoltaics

Author

Listed:
  • Ramanan, C.J.
  • Lim, King Hann
  • Kurnia, Jundika Candra

Abstract

Floating photovoltaics (FPV) offer benefits in land conservation, evaporation prevention and mitigation of PV panel thermal degradation. Previous studies suggested that enhanced cooling in FPV contributes to the improved efficiency of the PV panel compared to land-based PV (LPV) systems. However, most reported studies have constraints such as ex-situ measurements, manual data collection, data averaging, numerical analysis limitations, and limited comparison between FPV and LPV designs. These limitations hinder the accurate prediction of FPV’s superior performance due to cooling mechanisms. Hence, this study investigates the performance evaluation of LPV and FPV systems in terms of 250 mm height FPV, 800 mm height FPV and 800 mm height LPV for a total measurement duration of six days. This investigation takes into account the effect of dynamic environmental parameters, including solar radiation, ambient and water temperature, humidity, wind speed and direction, and rainfall. Results reveal that the temperature of the FPV at 250 mm height reduces by more than 2 ∘C compared to the LPV at 800 mm height. It should be noted that this improvement was recorded during off-time when solar radiation is not optimal for energy generation. Meanwhile, the 800 mm height FPV demonstrates cooling at a range of 2 ∘C to 0 ∘C compared to 800 mm height LPV for 57 % of the experiment duration in time and makes it the best cooling performer. Furthermore, humidity, rainfall, fluctuating solar radiation, high wind speed and higher differences in water and ambient temperature were found to significantly contribute to FPV cooling. The resulting findings can be used to improve the accuracy of FPV performance prediction and thus contribute to the advancements of green energy technology.

Suggested Citation

  • Ramanan, C.J. & Lim, King Hann & Kurnia, Jundika Candra, 2025. "Thermal behavior of floating photovoltaics: A comparison of performance at varying heights and benchmarking against land-based photovoltaics," Applied Energy, Elsevier, vol. 388(C).
    • Handle: RePEc:eee:appene:v:388:y:2025:i:c:s0306261925003721
    DOI: 10.1016/j.apenergy.2025.125642
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    References listed on IDEAS

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    1. Adimas Pradityo Sukarso & Kyung Nam Kim, 2020. "Cooling Effect on the Floating Solar PV: Performance and Economic Analysis on the Case of West Java Province in Indonesia," Energies, MDPI, vol. 13(9), pages 1-16, April.
    2. Waithiru Charles Lawrence Kamuyu & Jong Rok Lim & Chang Sub Won & Hyung Keun Ahn, 2018. "Prediction Model of Photovoltaic Module Temperature for Power Performance of Floating PVs," Energies, MDPI, vol. 11(2), pages 1-13, February.
    3. C.J., Ramanan & Lim, King Hann & Kurnia, Jundika Candra & Roy, Sukanta & Bora, Bhaskor Jyoti & Medhi, Bhaskar Jyoti, 2024. "Towards sustainable power generation: Recent advancements in floating photovoltaic technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 194(C).
    4. Exley, G. & Hernandez, R.R. & Page, T. & Chipps, M. & Gambro, S. & Hersey, M. & Lake, R. & Zoannou, K.-S. & Armstrong, A., 2021. "Scientific and stakeholder evidence-based assessment: Ecosystem response to floating solar photovoltaics and implications for sustainability," Renewable and Sustainable Energy Reviews, Elsevier, vol. 152(C).
    5. Elminshawy, Nabil A.S. & El-Damhogi, D.G. & Ibrahim, I.A. & Elminshawy, Ahmed & Osama, Amr, 2022. "Assessment of floating photovoltaic productivity with fins-assisted passive cooling," Applied Energy, Elsevier, vol. 325(C).
    6. Claus, R. & López, M., 2022. "Key issues in the design of floating photovoltaic structures for the marine environment," Renewable and Sustainable Energy Reviews, Elsevier, vol. 164(C).
    7. Siecker, J. & Kusakana, K. & Numbi, B.P., 2017. "A review of solar photovoltaic systems cooling technologies," Renewable and Sustainable Energy Reviews, Elsevier, vol. 79(C), pages 192-203.
    8. C.J., Ramanan & Lim, King Hann & Kurnia, Jundika Candra & Roy, Sukanta & Bora, Bhaskor Jyoti & Medhi, Bhaskar Jyoti, 2024. "Design study on the parameters influencing the performance of floating solar PV," Renewable Energy, Elsevier, vol. 223(C).
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