Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants

Akash Kumar; Ashwini Pavgi; Peter Hacke; Kaushik Choudhury; GovindaSamy TamizhMani

doi:10.1109/PVSC48317.2022.9938862

Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants

Akash Kumar, Ashwini Pavgi, Peter Hacke, Kaushik Choudhury, GovindaSamy TamizhMani

Materials Science

Research output: Contribution to conference › Paper › peer-review

2 Scopus Citations

Abstract

This paper presents the indoor extended accelerated stress testing (EAST) results of glass/glass (GG), glass/backsheet (GB) and glass/transparent backsheet (GT) modules having identical cells and two different encapsulant types, ethyl-vinyl-acetate (EVA) and polyolefin-elastomer (POE). Six 4-cell modules having the abovementioned construction combinations were subjected to extended ultraviolet (UV; 600 kWh/m2), damp-heat (DH; 2000 hours) and thermal-cycling (TC; 600 cycles) tests. The post-stress UV fluorescent imaging, electroluminescent imaging, reflectance spectrophotometry and colorimetry results indicated that the grid finger degradation and encapsulant browning are slightly higher in the GG modules compared to the GB modules. The post-stress IV test results indicated, in general, that the GG/EVA modules tend to perform inferior to the GG/POE modules with the EAST evaluation.

Original language	American English
Pages	1065-1067
Number of pages	3
DOIs	https://doi.org/10.1109/PVSC48317.2022.9938862 https://doi.org/10.1109/PVSC48317.2022.9938862
State	Published - 2022
Event	49th IEEE Photovoltaics Specialists Conference, PVSC 2022 - Philadelphia, United States Duration: 5 Jun 2022 → 10 Jun 2022

Conference

Conference	49th IEEE Photovoltaics Specialists Conference, PVSC 2022
Country/Territory	United States
City	Philadelphia
Period	5/06/22 → 10/06/22

Bibliographical note

See NREL/CP-5K00-83497 for preprint

NREL Publication Number

NREL/CP-5K00-85051

Keywords

EVA
glass/backsheet
glass/glass
indoor accelerated stress testing
POE
reliability

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Kumar, A., Pavgi, A., Hacke, P., Choudhury, K., & TamizhMani, G. (2022). Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants. 1065-1067. Paper presented at 49th IEEE Photovoltaics Specialists Conference, PVSC 2022, Philadelphia, United States. https://doi.org/10.1109/PVSC48317.2022.9938862, https://doi.org/10.1109/PVSC48317.2022.9938862

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abstract = "This paper presents the indoor extended accelerated stress testing (EAST) results of glass/glass (GG), glass/backsheet (GB) and glass/transparent backsheet (GT) modules having identical cells and two different encapsulant types, ethyl-vinyl-acetate (EVA) and polyolefin-elastomer (POE). Six 4-cell modules having the abovementioned construction combinations were subjected to extended ultraviolet (UV; 600 kWh/m2), damp-heat (DH; 2000 hours) and thermal-cycling (TC; 600 cycles) tests. The post-stress UV fluorescent imaging, electroluminescent imaging, reflectance spectrophotometry and colorimetry results indicated that the grid finger degradation and encapsulant browning are slightly higher in the GG modules compared to the GB modules. The post-stress IV test results indicated, in general, that the GG/EVA modules tend to perform inferior to the GG/POE modules with the EAST evaluation.",

keywords = "EVA, glass/backsheet, glass/glass, indoor accelerated stress testing, POE, reliability",

author = "Akash Kumar and Ashwini Pavgi and Peter Hacke and Kaushik Choudhury and GovindaSamy TamizhMani",

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Kumar, A, Pavgi, A, Hacke, P, Choudhury, K & TamizhMani, G 2022, 'Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants', Paper presented at 49th IEEE Photovoltaics Specialists Conference, PVSC 2022, Philadelphia, United States, 5/06/22 - 10/06/22 pp. 1065-1067. https://doi.org/10.1109/PVSC48317.2022.9938862, https://doi.org/10.1109/PVSC48317.2022.9938862

Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants. / Kumar, Akash; Pavgi, Ashwini; Hacke, Peter et al.
2022. 1065-1067 Paper presented at 49th IEEE Photovoltaics Specialists Conference, PVSC 2022, Philadelphia, United States.

Research output: Contribution to conference › Paper › peer-review

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AU - Kumar, Akash

AU - Pavgi, Ashwini

AU - Hacke, Peter

AU - Choudhury, Kaushik

AU - TamizhMani, GovindaSamy

N1 - See NREL/CP-5K00-83497 for preprint

PY - 2022

Y1 - 2022

N2 - This paper presents the indoor extended accelerated stress testing (EAST) results of glass/glass (GG), glass/backsheet (GB) and glass/transparent backsheet (GT) modules having identical cells and two different encapsulant types, ethyl-vinyl-acetate (EVA) and polyolefin-elastomer (POE). Six 4-cell modules having the abovementioned construction combinations were subjected to extended ultraviolet (UV; 600 kWh/m2), damp-heat (DH; 2000 hours) and thermal-cycling (TC; 600 cycles) tests. The post-stress UV fluorescent imaging, electroluminescent imaging, reflectance spectrophotometry and colorimetry results indicated that the grid finger degradation and encapsulant browning are slightly higher in the GG modules compared to the GB modules. The post-stress IV test results indicated, in general, that the GG/EVA modules tend to perform inferior to the GG/POE modules with the EAST evaluation.

AB - This paper presents the indoor extended accelerated stress testing (EAST) results of glass/glass (GG), glass/backsheet (GB) and glass/transparent backsheet (GT) modules having identical cells and two different encapsulant types, ethyl-vinyl-acetate (EVA) and polyolefin-elastomer (POE). Six 4-cell modules having the abovementioned construction combinations were subjected to extended ultraviolet (UV; 600 kWh/m2), damp-heat (DH; 2000 hours) and thermal-cycling (TC; 600 cycles) tests. The post-stress UV fluorescent imaging, electroluminescent imaging, reflectance spectrophotometry and colorimetry results indicated that the grid finger degradation and encapsulant browning are slightly higher in the GG modules compared to the GB modules. The post-stress IV test results indicated, in general, that the GG/EVA modules tend to perform inferior to the GG/POE modules with the EAST evaluation.

KW - EVA

KW - glass/backsheet

KW - glass/glass

KW - indoor accelerated stress testing

KW - POE

KW - reliability

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T2 - 49th IEEE Photovoltaics Specialists Conference, PVSC 2022

Y2 - 5 June 2022 through 10 June 2022

ER -

Kumar A, Pavgi A, Hacke P, Choudhury K, TamizhMani G. Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants. 2022. Paper presented at 49th IEEE Photovoltaics Specialists Conference, PVSC 2022, Philadelphia, United States. doi: 10.1109/PVSC48317.2022.9938862, 10.1109/PVSC48317.2022.9938862

Extended Accelerated Stress Testing (EAST) of Glass/Glass, Glass/Backsheet and Glass/Transparent Backsheet PV Modules: Influence of EVA and POE Encapsulants

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

Access to Document

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