Degradation of Crystalline Silicon Photovoltaic Cells/Modules under Heat and Temperature Effect

Hounkpatin, Géraud Florentin; Kounouhéwa, Basile; Agbomahéna, Macaire; Madogni, Vianou Irénée

doi:10.9734/psij/2018/42864

Cited by 6 publications

(5 citation statements)

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Section: Voids Formationmentioning

confidence: 99%

“…A consequence of this second type is a loss of adhesion at glass-EVA interface (GEI) and EVA-backsheet interface (EBI). These two types of bubbles have been reported and investigated in a broad range of studies [38][39][40][41]. Reducing the curing temperature to 155 °C result in type I voids free samples with only few small bubbles trapped within the EVA.…”

Section: Voids Formationmentioning

confidence: 99%

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Influence of Lamination Conditions of EVA Encapsulation on Photovoltaic Module Durability

Wu,

Wessel,

Zhu

et al. 2023

Materials

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Encapsulation is a well-known impact factor on the durability of Photovoltaics (PV) modules. Currently there is a lack of understanding on the relationship between lamination process and module durability. In this paper, the effects of different lamination parameters on the encapsulant stability due to stress testing have been investigated from both on-site production quality and long-term stability viewpoints. Rather than focusing on single stability factors, this paper evaluates lamination stability using a number of indicators including EVA (ethylene-vinyl acetate copolymer) curing level, voids generation, chemical stability, optical stability, and adhesion strength. The influences of EVA curing level on the stability of other properties are also discussed. It is shown that laminates stability increases with increasing curing level to an upper limit, beyond which leading to the formation of voids, reduced transmittance stability, discoloration, and unstable interfaces. A minimum gel content is identified but an upper limit should not be surpassed. The best range of gel content for the materials tested here is 84–90%. Samples with gel content below 70% show low chemical and optical stability, weak adhesion strength, and EVA flowing. Laminates with gel content over 92% are more likely to become yellow and are less stable in adhesion.

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Section: Voids Formationmentioning

confidence: 99%

Section: Voids Formationmentioning

confidence: 99%

Influence of Lamination Conditions of EVA Encapsulation on Photovoltaic Module Durability

Wu,

Wessel,

Zhu

et al. 2023

Materials

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“…However, also polymeric materials only degrade slowly in those conditions. This emphasizes the need to apply UV light and other stress factors at the same time in accelerated aging and degradation testing [31].…”

Section: Field Failuresmentioning

confidence: 99%

“…Failure modes in the field which occurred during operation are analyzed [31]: microcracks, cracking of back sheet, corrosion of connections, hot spots, cell breakage, delamination of encapsulant and back sheet, oxidation of busbars, yellowing/browning of encapsulants and back sheets with and without power loss, bubble formation and discoloration of busbars.…”

Section: Failure Analysismentioning

confidence: 99%

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Some Reliability Aspects of Photovoltaic Modules

Băjenescu¹

2020

Reliability and Ecological Aspects of Photovoltaic Modules

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Solar cells and photovoltaic modules are energy conversion components that produce electricity when exposed to light. The originality of photovoltaic energy as we understand it here is to directly transform light into electricity. Thin-film silicon in particular is better at low and diffuse illuminations and decreases less than the crystalline when the temperature increases while reducing the amount of material and manufacturing costs. However, the quality of the material and the efficiency of the conversion limit their use on a large scale. If the light absorption of the ultrathin layers of the active material could be improved, this would lead to low recombination currents, higher open-circuit voltages and higher conversion efficiency. PV systems often communicate with utilities, aggregators and other grid operators over the public Internet, so the power system attack surface has significantly expanded. Solar energy systems are equipped with a range of grid-support functions, whichif controlled or programmed improperly-present a risk of power system disturbances.

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Challenges Related to the Optimal Performance of PV Modules for Algerian Desert Climate

Kahoul

Cheghib

Sidrach‐de‐Cardona

et al. 2022

Sustainable Energy-Water-Environment Nexus in Deserts

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Degradation of Crystalline Silicon Photovoltaic Cells/Modules under Heat and Temperature Effect

Cited by 6 publications

References 0 publications

Influence of Lamination Conditions of EVA Encapsulation on Photovoltaic Module Durability

Influence of Lamination Conditions of EVA Encapsulation on Photovoltaic Module Durability

Some Reliability Aspects of Photovoltaic Modules

Challenges Related to the Optimal Performance of PV Modules for Algerian Desert Climate

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