Light induced degradation: kinetic model and grain boundary impact on sponge-LID

Sporleder, Kai; Hübener, K.; Petter, K.; Kranert, C.; Luka, Tabea; Turek, Marko

doi:10.1016/j.egypro.2017.09.316

Cited by 3 publications

(8 citation statements)

References 12 publications

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“…In Section 1.1, it is pointed out that WEEE originates from the malfunctioning of electronic devices of which poor handling is a contributor. For PV systems, module failure can originate from the design and technology of the PV module, [ 94,95 ] corrosion of module and cell damage, [ 96 ] environmental conditions, [ 97–105 ] the interaction of materials used in a PV module among others. [ 106 ] One of the ways to reduce PV waste is through proper handling of a module and other components during installation.…”

Section: Discussionmentioning

confidence: 99%

Photovoltaic Modules Waste Management: Ethical Issues for Developing Nations

Okoroigwe

Ajayi

et al. 2020

Energy Tech

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Solar photovoltaic (PV) systems are composed of modules and batteries characterized by depreciable, short lifespans. A survey was carried out to ascertain the level of awareness of the management of used PV modules in developing countries. Even though the respondents are aware of the environmental and health risks of the chemical components of the modules, nothing is being done presently to recycle or plan for the management of the items at end‐of‐life (EoL) period in developing countries. Whereas PV modules at EoL are being reprocessed by recycling in developed countries like the EU, it is not being considered as a health and environmental challenge, as for other electronic wastes in developing countries. Herein, the status and ethical challenges of PV waste generation in developing countries are discussed. Data from a structured survey instrument are obtained, analyzed, and discussed for determining the precursory method to avoid PV wastes in developing countries. It is observed that soon when most installations will be decommissioned, the developing nations will begin to experience a huge collection of PV wastes like other electronic gadgets and be exposed to the dangers of electronic waste pollution if necessary legislative programs are neglected.

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Section: Discussionmentioning

confidence: 99%

Photovoltaic Modules Waste Management: Ethical Issues for Developing Nations

Okoroigwe

Ajayi

et al. 2020

Energy Tech

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“…These silicon-based solar cells have undergone significant technological advances, resulting in cost reductions and improved energy conversion efficiencies. However, while c-Si and mc-Si solar cells hold great promise for a cleaner energy future, they also face critical issues such as light-induced degradation (LID), which can lead to a decrease in efficiency [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, in order to interpret the results of VOC variation as a function of illumination time, control of LID test parameters such as temperature and illumination intensity is critical. However, most of the studies on the LID phenomenon perform manual measurements at more or less regular time intervals of 5 minutes to 12 hours [2,[7][8][9][10][11][12]. This method can induce a wide margin of error.…”

Section: Introductionmentioning

confidence: 99%

Light Induced Degradation Quantification by Monitoring the VOC Output of Silicon Solar Cell Using Low-Cost Real-Time Virtual Instrumentation

Chibane,

Kouhlane,

Bouhafs

et al. 2023

JSMPM

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Silicon-based solar cells suffer from different types of light-induced efficiency losses (can cause up to 10% loss), known as light-induced degradation (LID). Impurities, such as boron, iron, and oxygen, are common at different concentrations in these solar cells. They form active recombination defects in boron-doped mono-crystalline (Cz-Si) and multi-crystalline (mc-Si) solar cells during illumination. For the solar industry, this will lead to serious financial loss, hence the importance of inspecting and controlling the LID level accurately. Seeking to minimize the human factor and the inaccuracy that comes with it, we have proposed in this research a low-cost virtual instrumentation solution to provide a new real-time instrumentation technique for solar cell characteristics such as open circuit voltage (VOC). The virtual data acquisition system (VDAS) design is based on a low-cost Arduino board associated with MATLAB/Simulink software. Moreover, this system can collect in real time the values of solar cell outputs under prolonged illumination and under different temperatures of the LID test. Further, kinetic modeling of the solar cell output VOC variation as a function of light soak duration; shows the predominance of one type metastable defect over the LID test of c-Si solar cells. Additionally, degradation mechanism in mc-Si solar cells involve more than one metastable defect and are more complexes due to the mc-Si substrate elaboration technique compared to c-Si substrate. Furthermore, the temperature dependence of the concentrations (NVoc) and the thermal activation energies of the defects have been extracted from the experimental VOC measurements obtained using the VDAS. Finally, the system minimizes the test period and errors for solar cell characterization compared to traditional approaches.

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“…in which Pn kis is the power at STC of the PV module s of the string i, array k; and S k is the number of module of the string i an PR corr that is calculated for the 15 months period (h = 131,400 h) according to Equation (5). The total energy losses associated with all the modules that have failed in the PV plant, FEL m , have been determined according to Equation (A2).…”

Section: Appendix Amentioning

confidence: 99%

“…The performance ratio during the failure time is considered the average performance ratio of the PV plant in the 15 months defined by Equation (5). In this equation, we have utilized the hourly measured data of energy production, solar radiation on the plane of the modules measured by a pyranometer, and module temperature.…”

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confidence: 99%

Impact of Energy Losses Due to Failures on Photovoltaic Plant Energy Balance

et al. 2018

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Photovoltaic (PV) plant failures have a significant influence on PV plant security, reliability, and energy balance. Energy losses produced by a PV plant are due to two large causes: failures and inefficiencies. Knowing the relative influence of energy losses due to failures and energy losses due to inefficiencies on the PV plant energy balance contribute to the optimization of its design, commissioning, and maintenance tasks. This paper estimates the failure rates, grouped by components, and the relative impact of the failures on the PV plant energy balance through real operation and maintenance follow-up data of 15 PV plants in Spain and Italy for 15 months. Results show that the influence of failures in energy losses of all analysed PV plants is low, reaching a maximum value of 0.96% of the net energy yield. Solar field energy losses only represent 4.26% of all failure energy losses. On the other hand, energy losses due to inefficiencies have represented between 22.34% and 27.58% of the net energy yield.

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Light induced degradation: kinetic model and grain boundary impact on sponge-LID

Cited by 3 publications

References 12 publications

Photovoltaic Modules Waste Management: Ethical Issues for Developing Nations

Photovoltaic Modules Waste Management: Ethical Issues for Developing Nations

Light Induced Degradation Quantification by Monitoring the VOC Output of Silicon Solar Cell Using Low-Cost Real-Time Virtual Instrumentation

Impact of Energy Losses Due to Failures on Photovoltaic Plant Energy Balance

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