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Evaluation of PV Module Packaging Strategies of Monofacial and Bifacial PERC Using Degradation Pathway Network Modeling

Journal Article · · Conference Record of the Photovoltaics Specialists Conference
 [1];  [2];  [2];  [2];  [2];  [3];  [4];  [5];  [2];  [2]
  1. Case Western Reserve Univ., Cleveland, OH (United States); Case Western Reserve University
  2. Case Western Reserve Univ., Cleveland, OH (United States)
  3. Cybrid Technologies Inc., Jiangsu (China)
  4. CSI Solar Co. Ltd., Jiangsu (China)
  5. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
+ Show Author Affiliations
As the PV industry is rapidly expanding, it is important to thoroughly investigate the long-term impact of packaging strategies on the performance of PV modules. In this study, the variants in sets differ on the basis of manufacturer (A/B), encapsulant (EVA/POE), rear encapsulant (UV-cutoff/opaque/transparent), module architecture (GB/DG) and cell type (monofacial/bifacial). The minimodules were exposed for 2520 hours in modified damp heat, with or without full spectrum light. Every 504 hours, stepwise electrical characterization techniques were employed to track changes in minimodules. Degradation pathway modeling using network structural equation modeling was employed to study pairwise relationships between variables and service lifetime prediction in minimodules. Through this study, differences in quality control are identified in minimodules made by different manufacturers. Minimodules with UV-cutoff rear encapsulant show relatively better stability, whereas the ones with opaque rear encapsulant show greater power loss. In addition, GB having UV-cutoff rear encapsulation and GB with POE having opaque rear encapsulation were identified to be stable as they lack a best model fit. Here, the primary power loss mechanism in degrading variants is interconnect corrosion.
Research Organization:
Case Western Reserve Univ., Cleveland, OH (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
EE0008550; NA0003525
OSTI ID:
1922071
Journal Information:
Conference Record of the Photovoltaics Specialists Conference, Journal Name: Conference Record of the Photovoltaics Specialists Conference Vol. 2022; ISSN 0742-6666
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

References (8)

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Statistical and Domain Analytics Applied to PV Module Lifetime and Degradation Science journal January 2013
A Comprehensive Methodology to Evaluate Losses and Process Variations in Silicon Solar Cell Manufacturing journal September 2019
Degradation Pathway Modeling of PV Minimodule Variants with Different Packaging Materials Under Indoor Accelerated Exposures conference June 2021
Transparent Backsheets for Bifacial Photovoltaic Modules conference June 2020
Temporal evolution and pathway models of poly(ethylene-terephthalate) degradation under multi-factor accelerated weathering exposures journal February 2019
Detection of Typical Defects in Silicon Photovoltaic Modules and Application for Plants with Distributed MPPT Configuration journal November 2019
Review on the Sources of Power Loss in Monofacial and Bifacial Photovoltaic Technologies journal November 2021

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Related Subjects

14 SOLAR ENERGY
PERC
PV
PV degradation
accelerated exposures
bifacial
degradation
electrical measurements
module
monofacial
network modeling
packaging
pathway
pathway modeling
solar energy