Impact of natural soiling on the transmission of PV cover plates

Boyle, Liza; Flinchpaugh, Holly; Hannigan, Michael P.

doi:10.1109/pvsc.2013.6745150

Cited by 24 publications

(18 citation statements)

References 6 publications

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“…The primary investigation made in [ 10 , 11 , 28 , 30 , 31 ], are the change in the transmission of the PV cover surface due to the dust deposition. A linear relationship between the transmission loss and dust deposition was observed according to [10] . Transmission loss was observed to be around 0.05% for every increase in 1 g/m 2 of dust deposited.…”

Section: Main Textmentioning

confidence: 99%

An updated review on factors and their inter-linked influences on photovoltaic system performance

Rao

Mani

Ramamurthy

2018

Heliyon

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Globally installed solar photovoltaics (PV) capacity has crossed three hundred gigawatts and is increasing each year. As the share of solar PV in the energy mix of a country increases, forecasting PV power available will be crucial. To forecast the instantaneous and long-term PV power output, understanding the factors influencing them is necessary. In this view, this work elaborates on the factors that impact the PV system through tabulation and graphical explanation. Further, a discussion of the articles related to the dust-induced change in performance is made. To understand the impact of dust on solar PV systems in depth, advanced instrumentation and methodologies have been used in the past few years. One of the methods is the measurement of spectral transmittance/reflectance/absorptance of the dust layer on the PV panel. This has led to the question whether a thin layer of some specific dust can be beneficial by absorbing infrared (IR) heat and hence allowing the PV cells to operate at a lower temperature. Many controlled experiments in the laboratory have been made using the artificial dust and sun simulators; and such studies aid in the development of numerical models. Research in modeling, mathematical analysis (from first principles) of dust deposition, and calculation of its impact on panels have been given importance in recent years. Outdoor experiments are relatively more common than other modes of research in this field. Studies involving the interaction of deposited dust with spectral radiation, improving the correlation between artificial and natural dust deposition, the interplay between dust and atmospheric parameters are to be encouraged.

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Section: Main Textmentioning

confidence: 99%

An updated review on factors and their inter-linked influences on photovoltaic system performance

Rao

Mani

Ramamurthy

2018

Heliyon

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“…Field samples were collected on 10 cm × 10 cm × 0.48 cm soda-lime glass coupons as described in [6] and [14]. The coupons were cleaned and then weighed with a Sartorius analytical balance (accuracy = 0.0001 g) after equilibrating at a temperature of 25 ± 2 • C and relative humidity of 35% ± 15% for a minimum of 24 h. Coupons were deployed at Commerce City, CO, USA, for 2-4 weeks at tilt angles of 0 • and 40 • .…”

Section: B Outdoor Sample Collectionmentioning

confidence: 99%

“…Low soil mass loadings represent a much more common, albeit difficult to quantify, occurrence. Soiling models appropriate for heavy mass loadings do not agree well with models describing lighter loadings [6]. Measurements of light transmission through soiled glass (haze) have been described by Alfaro et al [7] as dependent upon the density of the accumulated soil film.…”

Section: Introductionmentioning

confidence: 99%

Quantification of a Minimum Detectable Soiling Level to Affect Photovoltaic Devices by Natural and Simulated Soils

Burton

Boyle

Griego

et al. 2015

IEEE J. Photovoltaics

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Soil accumulation on photovoltaic (PV) modules presents a challenge to long-term performance prediction and lifetime estimates due to the inherent difficulty in quantifying small changes over an extended period. Low mass loadings of soil are a common occurrence but remain difficult to quantify. In order to more accurately describe the specific effects of sparse soil films on PV systems, we have expanded upon an earlier technique to measure the optical losses due to an artificially applied obscurant film. A synthetic soil analog was sprayed onto glass coupons at very brief intervals with a high-volume, low-pressure pneumatic sprayer. Light transmission through the grime film was evaluated using a quantum efficiency test stand and UV/vis spectroscopy. A 0.1-g/m 2 grime loading was determined to be the limit of mass measurement sensitivity, which is similar to some reports of daily soil accumulation. Predictable, linear decreases in transmission were observed for samples with a mass loading between 0.1 and 0.5 g/m 2 . A similar change was observed for soiled coupons from an outdoor monitoring station. Collected soil from the field coupons was analyzed to develop a compositional analog for indoor studies. Natural and synthetic soils produced similar decreases in transmission.

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“…Dust and other particulate accumulation on PP cause transmission loss [1]. Such accumulation referred as Soiling depends on geographical location, installation conditions and environmental factors such as temperature, humidity, wind direction and rainfall [2,3]. In [4], it has been demonstrated that the effect of soiling in some solar modules causes a reduction of the electrical output of around 4%.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Soiling Effect on Solar-Panel Power Efficiency in the Colombian Caribbean Region

Diazgranados-Garzón

Romero-Bravo

Navarro-Estrada

et al. 2019

redin

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This paper summarizes the impact of particulate material on solar-panel performance for systems located in the Colombian Caribbean Region. First, the dirt/particles are identified and classified; and then, their effect in the reduction of solar panel efficiency has been estimated at most of 6% during the times of the day with the maximum solar radiation. It has been found that the impact decreases exponentially for other hours during the day, which implies that dirt effect becomes negligible on the electric power available. The study reveals that the effect of dirt/particles is significant from a clean solar panel to one with light accumulation, but rapidly diminishes as accumulation changes from light to heavy. Thus, it is suggested that once some dirt accumulates on the panel, a cleaning procedure can wait until the particle accumulation is heavy without sacrificing efficiency excessively. The results of the study become a tool to estimate the trade-offs between power efficiency of photovoltaic systems and financial viability of those projects. Hence, inverters can be chosen such that they can limit the amount of electric power while minimizing the stochastic nature of solar radiation and the dirt/particle effect. The analysis presented starts through a complete Multivariate Analysis of Variance (ANOVA) considering three fundamental factors: dirt/particles, solar radiation and day.

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Impact of natural soiling on the transmission of PV cover plates

Cited by 24 publications

References 6 publications

An updated review on factors and their inter-linked influences on photovoltaic system performance

An updated review on factors and their inter-linked influences on photovoltaic system performance

Quantification of a Minimum Detectable Soiling Level to Affect Photovoltaic Devices by Natural and Simulated Soils

Analysis of the Soiling Effect on Solar-Panel Power Efficiency in the Colombian Caribbean Region

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