The cooling effect of floating PV in two different climate zones: A comparison of field test data from the Netherlands and Singapore

Dörenkämper, Maarten; Wahed, Arifeen; Kumar, Abhishek; Jong, Michiel de; Kroon, Jan; Reindl, Thomas

doi:10.1016/j.solener.2020.11.029

Cited by 55 publications

(31 citation statements)

References 1 publication

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“…However, it has been observed that the current strengths at the same voltage levels increase in the floating solar panel, especially at high temperatures. The similar improvements had been observed in the experimental studies which were presented in Table S1 60‐64 . The parameters belonging to the same solar panel were run in MATLAB Simulink program this time.…”

Section: Resultssupporting

confidence: 73%

“…The similar improvements had been observed in the experimental studies which were presented in Table S1. [60][61][62][63][64] The parameters belonging to the same solar panel were run in MATLAB Simulink program this time. Current (I/A) and voltage (U/V) graphs obtained at different temperature values as a result of running the program are as follows Figure 7 and Table 5.…”

Section: Pv Analysismentioning

confidence: 99%

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Experimental and theoretical study: Design and implementation of a floating photovoltaic system for hydrogen production

GÜLLÜ>

Mert

Nazlıgül

et al. 2021

Intl J of Energy Research

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Summary In this study, lab‐made modified graphite cathodes were used to design and implement floating PV assisted alkaline electrolysis cell. The influence of temperature on PV performance was studied both experimentally and theoretically, and the PV module performance was investigated in floating as well as non‐floating modes. Power generation of floating PV panel and non‐floating PV panel at four different air temperatures was examined. Although there was no substantial improvement in power generation at 6°C or 16°C, values improved by 6.25% and 10.75% at 24°C and 37°C, respectively. For alkaline electrolysis cell part of this system, the graphite (G) cathode was galvanostatically coated with nickel (G/Ni) and decorated with cobalt nano‐particles (G/Ni/Co). The characterization of the electrode was achieved using X‐Ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). The Co(111)‐decorated Ni was determined by XRD, the electrode surface was very rough in FE‐SEM micrographs, the detected features provided a larger contact area that supported the formation of simultaneous electrochemical reactions. The electrochemical behavior of electrodes were determined in 1 M KOH by cyclic voltammetry (CV). The modified cathode (G/Ni/Co) enhanced the hydrogen production performance owing to lower hydrogen onset potential. Electronic structure calculations were carried out in order to investigate water as well as proton adsorption on a Co‐decorated Ni(111) surface. Density Functional Theory (DFT) calculations identified the role of Co cluster and Ni surface on water and proton adsorptions. According to our knowledge of the literature to date, the practical and theoretical analysis of a floating PV assisted‐an alkaline electrolysis system that worked with the laboratory‐made electrodes has not been performed before. Results showed that floating PV panels were beneficial than land mounted panels and the G/Ni/Co enhanced the hydrogen generation performance of the system.

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Section: Resultssupporting

confidence: 73%

Section: Pv Analysismentioning

confidence: 99%

Experimental and theoretical study: Design and implementation of a floating photovoltaic system for hydrogen production

GÜLLÜ>

Mert

Nazlıgül

et al. 2021

Intl J of Energy Research

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“…6 The initial energy yield of FPV systems is estimated to be 1,483 kWh/kW, which is 5% lower than the initial energy yield of ground-mount PV systems because of the difference in panel tilt angle. The energy gain from the cooling of FPV systems is estimated to be between 3% in the Netherlands and 6% in Singapore (Dörenkämper et al 2021). Because no comprehensive data are available on FPV energy yield improvements in the United States, we assume the conservative 3% value.…”

Section: Sensitivity Analysismentioning

confidence: 99%

Floating Photovoltaic System Cost Benchmark: Q1 2021 Installations on Artificial Water Bodies

Margolis

2021

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“…In open seas, there is generally a higher level of humidity than inland, as well as lower ambient temperatures. The decreased temperatures are a result of various factors, which among others, include [29] the water's transparency, which results in the incoming solar radiation being transmitted to inner layers of the medium rather than just the surface layer, as well as the fraction of incident irradiation that is naturally used for evaporation. Furthermore, the wind speed is usually higher due to long fetch distances compared to land.…”

Section: Effects Of Floating Structure Response In Waves On Floating Pv Performancementioning

confidence: 99%

Hydrodynamic Analysis of Twin-Hull Structures Supporting Floating PV Systems in Offshore and Coastal Regions

2021

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In this paper, a novel model based on the boundary element method (BEM) is presented for the hydrodynamic analysis of floating twin-hull structures carrying photovoltaic panels, supporting the study of wave responses and their effects on power performance in variable bathymetry regions. The analysis is restricted to two spatial dimensions for simplicity. The method is free of any mild-slope assumptions. A boundary integral representation is applied for the near field in the vicinity of the floating body, which involved simple (Rankine) sources, while the far field is modeled using complete (normal-mode) series expansions that are derived using separation of variables in the constant depth half-strips on either side of the middle, non-uniform domain, where the depth exhibited a general variation, overcoming a mild bottom-slope assumption. The numerical solution is obtained by means of a low-order panel method. Numerical results are presented concerning twin-hull floating bodies of simple geometry lying over uniform and sloping seabeds. With the aid of systematic comparisons, the effects of the bottom slope and curvature on the hydrodynamic characteristics (hydrodynamic coefficients and responses) of the floating bodies are illustrated and discussed. Finally, the effects of waves on the floating PV performance are presented, indicating significant variations of the performance index ranging from 0 to 15% depending on the sea state.

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The cooling effect of floating PV in two different climate zones: A comparison of field test data from the Netherlands and Singapore

Cited by 55 publications

References 1 publication

Experimental and theoretical study: Design and implementation of a floating photovoltaic system for hydrogen production

Experimental and theoretical study: Design and implementation of a floating photovoltaic system for hydrogen production

Floating Photovoltaic System Cost Benchmark: Q1 2021 Installations on Artificial Water Bodies

Hydrodynamic Analysis of Twin-Hull Structures Supporting Floating PV Systems in Offshore and Coastal Regions

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