Organic Soiling: The Role of Pollen in PV Module Performance Degradation

Conceição, Ricardo; Silva, Hugo; Mirão, José; Collares-Pereira, Manuel

doi:10.3390/en11020294

Cited by 37 publications

(29 citation statements)

References 20 publications

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“…Another problem in PV system performance is soiling on the modules. Conceição et al [12] presented the effect of soiling in Alentejo and Évora in Portugal on PV performance, and discussed the seasonal variation and the type of soiling. Sand from the Sahara was identified as soiling, in addition to pollen, especially in spring.…”

Section: Causes For Energy Lossmentioning

confidence: 99%

Photovoltaic System Design and Performance

Sark

2019

Energies

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This editorial summarizes the collection of papers in the Special Issue entitled Photovoltaic System Design and Performance, which was published in MDPI’s Energies journal. Papers on this topic were submitted in 2017 and 2018, and a total of 21 papers were published. Main topics included data analysis for optimal performance and fault analysis, causes for energy loss, and design and integration issues. The papers in this Special Issue demonstrate the importance of designing and properly monitoring photovoltaic systems in the field in order to ensure maintaining good performance.

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Section: Causes For Energy Lossmentioning

confidence: 99%

Photovoltaic System Design and Performance

Sark

2019

Energies

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“…Soiling can easily cause more than 1% power loss per day [1][2][3][4] and is a site-specific phenomenon, strongly influenced by local climatic conditions. 1,[5][6][7][8][9][10][11] The predominant type of contamination could change considerably depending on the location: mineral dust deposits 1 (Figure 1A), bird droppings ( Figure 1B), biofilms of bacteria, algae, lichen, mosses, or fungi [12][13][14] ( Figure 1C), plant debris or pollen 15 (Figure 1D), engine exhausts or industry emissions ( Figure 1E), and agricultural emissions such as feed dusts ( Figure 1F).…”

Section: Introductionmentioning

confidence: 99%

Techno-Economic Assessment of Soiling Losses and Mitigation Strategies for Solar Power Generation

Ilse

Micheli

Figgis

et al. 2019

Joule

278

123

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Soiling consists of the deposition of contaminants onto photovoltaic (PV) modules or mirrors and tubes of concentrated solar power systems (CSPs). It often results in a drastic reduction of power generation, which potentially renders an installation economically unviable and therefore must be mitigated. On the other hand, the corresponding costs for cleaning can significantly increase the price of energy generated. In this work, the importance of soiling is assessed for the global PV and CSP key markets. Even in optimized cleaning scenarios, soiling reduces the current global solar power production by at least 3%-4%, with at least 3-5 billion V annual revenue losses, which could rise to 4%-7%, and more than 4-7 billion V losses, in 2023. Therefore, taking into account the underlying physics of natural soiling processes and the regional cleaning costs, a techno-economic assessment of current and proposed soiling mitigation strategies such as innovative coating materials is presented. Accordingly, the research and development needs and challenges in addressing soiling are discussed.

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“…In addition to dust, there can be other issues such as natural pollens affecting the performance of the PVs. Conceição et al [22] studied the soiling ratio index in a rural environment of Southern Europe by calculating the maximum power output and short circuit current of two photovoltaic (PV) panels. Their results show a soiling rate of 4.1%/month in April, 1.9%/month in July and 1.6%/month in September.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Various Dry Photovoltaic Cleaning Techniques and Frequencies on the Power Output of CdTe-Type Modules in Dusty Environments

2019

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This study presents the conditions and results of experimental investigations on various photovoltaic (PV) module cleaning methods and the effects on the performance of cadmium-telluride CdTe-type photovoltaic (PV) modules located in Doha, Qatar. The study aims to find the optimum cleaning technique and frequency based on cleaning performance and cost. PV modules are in a dusty and rocky area in the western part of Doha, Qatar within the north campus of Education City. Maximum power point tracking (MPPT) technology is employed for five different PV modules. The results show that microfiber-based wiper along with microfiber & vacuum cleaner are the most effective cleaning methods with about 6% improvement for the weekly period compared to the control panel among the considered methods. However, due to the increased cost of adding a vacuum cleaner, the microfiber-based wiper is the most efficient method when both cost and improvement rates are considered. In addition, the most efficient cleaning frequency (among daily, weekly and monthly) is found to be the weekly cleaning under the tested climate conditions.

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Organic Soiling: The Role of Pollen in PV Module Performance Degradation

Cited by 37 publications

References 20 publications

Photovoltaic System Design and Performance

Photovoltaic System Design and Performance

Techno-Economic Assessment of Soiling Losses and Mitigation Strategies for Solar Power Generation

Assessment of Various Dry Photovoltaic Cleaning Techniques and Frequencies on the Power Output of CdTe-Type Modules in Dusty Environments

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