Analysis of the dependence of the spectral factor of some PV technologies on the solar spectrum distribution

Nofuentes, G.; García-Domingo, B.; Muñoz, J.V.; Chenlo, F.

doi:10.1016/j.apenergy.2013.07.044

Cited by 106 publications

(50 citation statements)

References 14 publications

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“…As the solar spectrum distribution at in-plane irradiance levels above 700 W/m 2 closely matches that of the AM 1.5G standard reference spectrum in the city of Jaén [Nofuentes et al, 2014], no spectral effects have been included in Eq. 7.…”

Section: Effective Peak Power Of the Pv Arraymentioning

confidence: 99%

Study of degradation and evaluation of model parameters of micromorph silicon photovoltaic modules under outdoor long term exposure in Jaén, Spain

Kichou

Abaslioglu

Silvestre

et al. 2016

Energy Conversion and Management

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The analysis of the degradation of tandem amorphous silicon (a-Si:H) and microcrystalline silicon ( -Si:H): Micromorph thin-film photovoltaic (TFPV) modules and its impact on the output power of a PV array under outdoor long term exposure located in Jaén (Spain) is addressed in this work. Furthermore, the evolution of main solar cell model parameters is evaluated by means of parameters extraction techniques from monitored data of the PV system in real operation of work. The degradation rate and the stabilization period of micromorph TFPV modules, as well as the results of the evolution of each of the solar cell model parameters along the outdoor long-term exposure are analysed in order to gain a better understanding of changes in performance of micromorph TFPV modules and the behaviour of the output power of the PV generator.

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Section: Effective Peak Power Of the Pv Arraymentioning

confidence: 99%

Study of degradation and evaluation of model parameters of micromorph silicon photovoltaic modules under outdoor long term exposure in Jaén, Spain

Kichou

Abaslioglu

Silvestre

et al. 2016

Energy Conversion and Management

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show abstract

“…al. [19], high APE values above 1.88eV indicate increased spectral irradiance intensities for respective spectral response bands. This index has been found to decrease [7] when the spectral distribution at longer wavelengths is enhanced, while higher spectral components at shorter wavelengths lead to increasing values of APE.…”

Section: Spectral Factor Limitations On Proxy For Spectral Variationsmentioning

confidence: 99%

Spectral derates phenomena of atmospheric components on multi-junction CPV technologies

Armijo¹,

Harrison²,

King³

et al. 2014

AIP Conference Proceedings

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Abstract. The solar spectrum varies with atmospheric conditions and composition, and can have significant impacts on the output power performance of each junction in a concentrating solar photovoltaic (CPV) system, with direct implications on the junction that is current-limiting. The effect of changing solar spectrum on CPV module power production has previously been characterized by various spectral performance parameters such as air mass (AM) for both single and multi-junction module technologies. However, examinations of outdoor test results have shown substantial uncertainty contributions by many of these parameters, including air mass, for the determination of projected power and energy production. Using spectral data obtained from outdoor spectrometers, with a spectral range of 336nm-1715nm, this investigation examines precipitable water (PW), aerosol and dust variability effects on incident spectral irradiance. This work then assesses air mass and other spectral performance parameters, including a new atmospheric component spectral factor (ACSF), to investigate iso-cell, stacked multijunction and single-junction c-Si module performance data directly with measured spectrum. This will then be used with MODTRAN5 ® to determine if spectral composition can account for daily and seasonal variability of the short-circuit current density J sc and the maximum output power P mp values. For precipitable water, current results show good correspondence between the modeled atmospheric component spectral factor and measured data with an average rms error of 0.013, for all three iso-cells tested during clear days over a one week time period. Results also suggest average variations in ACSF factors with respect to increasing precipitable water of 8.2%/cmH 2 O, 1.3%/cmH 2 O, 0.2%/cmH 2 O and 1.8%/cmH 2 O for GaInP, GaAs, Ge and c-Si cells, respectively at solar noon and an AM value of 1.0. For ozone, the GaInP cell had the greatest sensitivity to increasing ozone levels with an ACSF variation of 0.07%/cmO 3 . For the desert dust wind study, consistent ACSF behavior between all iso-cells and c-Si was found, with only significant reductions beyond 40mph.

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“…The coefficient of determination is a regression statistic which measures the goodness of fit. Higher values of the coefficient of determination imply better agreement between the fitted line and the observed data points [11]. The steps to obtain …”

Section: Annual Degradation Ratementioning

confidence: 99%

Performance Analysis of a Grid-Connected Upgraded Metallurgical Grade Silicon Photovoltaic System

et al. 2016

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Because of their low cost, photovoltaic (PV) cells made from upgraded metallurgical grade silicon (UMG-Si) are a promising alternative to conventional solar grade silicon-based PV cells. This study investigates the outdoor performance of a 1.26 kW grid-connected UMG-Si PV system over five years, reporting the energy yields and performance ratio and estimating the long-term performance degradation rate. To make this investigation more meaningful, the performance of a mono-Si PV system installed at the same place and studied during the same period of time is presented for reference. Furthermore, this study systematizes and rationalizes the necessity of a data selection and filtering process to improve the accuracy of degradation rate estimation. The impact of plane-of-array irradiation threshold for data filtering on performance ratio and degradation rate is also studied. The UMG-Si PV system's monthly performance ratio after data filtering ranged from 84% to 93% over the observation period. The annual degradation rate was 0.44% derived from time series of monthly performance ratio using the classical decomposition method. A comparison of performance ratio and degradation rate to conventional crystalline silicon-based PV systems suggests that performance of the UMG-Si PV system is comparable to that of conventional systems.

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Analysis of the dependence of the spectral factor of some PV technologies on the solar spectrum distribution

Cited by 106 publications

References 14 publications

Study of degradation and evaluation of model parameters of micromorph silicon photovoltaic modules under outdoor long term exposure in Jaén, Spain

Study of degradation and evaluation of model parameters of micromorph silicon photovoltaic modules under outdoor long term exposure in Jaén, Spain

Spectral derates phenomena of atmospheric components on multi-junction CPV technologies

Performance Analysis of a Grid-Connected Upgraded Metallurgical Grade Silicon Photovoltaic System

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