Performance of Soiled PV Module Technologies: Behavior Based on Controverted Parameters

Costa, Suellen Caroline Silva; Diniz, Antônia Sônia Alves Cardoso; Duarte, Túlio Pinheiro; Bhaduri, Sumit; Santana, Vinicius Camatta; Kazmerski, Lawrence L.

doi:10.1109/pvsc40753.2019.8980675

Cited by 4 publications

(4 citation statements)

References 3 publications

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“…The model calculation comparing Si and CdTe is presented graphically in Figure 3, with the normalized P max as a function of soiling days for various module temperatures. The model assumes a uniform soiling rate over the period, normalization to 1-kW/m 2 irradiance, parameter independence, and uses P max [49][50][51]. The model predication is also shown with the normalized module P max as a function of module temperature for t3-selected soiling exposures in Figure 4 for the same conditions as Figure 3.…”

Section: The Modelmentioning

confidence: 99%

“…The temperature characteristics of these four module technologies are measured to evaluate specific power-temperature coefficients of the modules used in these investigations. The models are tested against data collected over several years using our soiling monitoring systems in Belo Horizonte [49][50][51]. The model and these data are used to identify the conditions under which these different technologies might have operational advantages-the major objective and contribution of this paper.…”

Section: Introductionmentioning

confidence: 99%

“…The model and these data are used to identify the conditions under which these different technologies might have operational advantages-the major objective and contribution of this paper. Horizonte [49][50][51]. The model and these data are used to identify the conditions under which these different technologies might have operational advantages-the major objective and contribution of this paper. )…”

Section: Introductionmentioning

confidence: 99%

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Soiling Spectral and Module Temperature Effects: Comparisons of Competing Operating Parameters for Four Commercial PV Module Technologies

et al. 2022

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The choice of a particular PV technology for best performance is sometimes based upon a single factor or single operating condition. However, many parameters have functionalities that oppose each under actual operating conditions. In this paper, the comparisons of different PV module technologies under moderate environmental conditions (Tropical Climate Zone, Belo Horizonte, Brazil) are explored based upon the two competing parameters of soiling-layer spectral effects and panel operating temperature. Specifically, low-bandgap PV technologies (e.g., Si or Cu(In,Ga)(SSe)2) are reported to have performances less affected by the absorption of incoming sunlight than higher-bandgap absorbers (e.g., a-Si:H or CdTe). However, the opposite is true for operating temperatures, with higher bandgaps having advantages under higher-temperature operating conditions. We present a simple comparative soiling-temperature model with experimental collaborative data to address the following question: What is the controlling parameter of the combination of soiling spectral effects and temperature on lower- and higher-bandgap module technologies? Temperature coefficients are measured for groups of modules for the four technologies having bandgaps ranging from 1.1 to 1.7 eV. Additional optical absorption for the soiling layers in the range of 300 nm to ~600 nm is confirmed by transmission measurements. The data from our soiling monitoring stations indicate that these potential spectral effects are based on consistent differences in soiling ratios and soiling rates. Some differences between the model predications and experimental observations are discussed. This paper reports temperature and soiling regions of “best-of-class” performances for these four commercial PV technologies in this climate region based upon the two competing parameters.

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Section: The Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Soiling Spectral and Module Temperature Effects: Comparisons of Competing Operating Parameters for Four Commercial PV Module Technologies

et al. 2022

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“…However, the spectral response is not the only characteristic of PV cells that can lead to dissimilar soiling losses for different PV materials. Researchers from PUC Minas, in Brazil, have shown that the temperature can dominate the spectral effects, because of the different temperature coefficients of the various PV materials (Costa et al, 2019;Duarte et al, 2020). In particular, from the results of their analysis, supported by experimental data, the authors concluded that, under operating temperatures >40 C, higher bandgaps technologies (such as CdTe) still showed better performance compared with silicon, despite of the higher spectral losses.…”

Section: Ll Open Accessmentioning

confidence: 99%

Monitoring photovoltaic soiling: assessment, challenges, and perspectives of current and potential strategies

et al. 2021

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Soiling is the process whereby dirt, dust, and organic/inorganic contaminants deposit on the surface of a photovoltaic (PV) module. It causes significant economic losses and can have a substantial impact on the expansion of photovoltaic technologies for energy generation. The first step to address soiling adequately is monitoring, as soiling mitigation has to be tailored to the specific conditions of each PV system and no universally valid strategy exists. The main focus of this study is to assess the current state of the art in soiling monitoring, in order to help the community better understand the needs and the challenges in this area. The potentials and the limitations of each monitoring method are discussed thoroughly in the paper, with the support of original experimental data. An estimation of the future soiling monitoring market trends is also presented, with a forecasted need for tens of thousands of new soiling monitors every year.

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Impact of soiling on Si and CdTe PV modules: Case study in different Brazil climate zones

Costa¹,

Kazmerski²,

Diniz³

2021

Energy Conversion and Management: X

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Performance of Soiled PV Module Technologies: Behavior Based on Controverted Parameters

Cited by 4 publications

References 3 publications

Soiling Spectral and Module Temperature Effects: Comparisons of Competing Operating Parameters for Four Commercial PV Module Technologies

Soiling Spectral and Module Temperature Effects: Comparisons of Competing Operating Parameters for Four Commercial PV Module Technologies

Monitoring photovoltaic soiling: assessment, challenges, and perspectives of current and potential strategies

Impact of soiling on Si and CdTe PV modules: Case study in different Brazil climate zones

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