Seasonal variation analysis of the outdoor performance of amorphous Si photovoltaic modules using the contour map

Nakada, Yasuhito; Fukushige, Shunichi; Minemoto, Takashi; Takakura, Hideyuki

doi:10.1016/j.solmat.2008.11.011

Cited by 41 publications

(18 citation statements)

References 2 publications

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“…A detailed literature survey shows that several researchers reported spectral effects on PV module performances at different places, using different spectrum parameters, for different module technologies, using spectrum-based models and softwares and in different context, while interrelating with other parameters like temperature, module efficiency, etc. [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

“…The highest annual spectral impact and uncertainty were reported in a-Si. The impact of spectral distribution as a result of seasonal variation on PR by considering APE and module temperature on a-Si technology has been analyzed at Japan site [12,13]. At some other sites of Japan, net effect of the solar spectrum on the annual energy yield of c-Si and a-Si modules has been estimated by parameters related to spectral factor (similar to MMF) and APE [14].…”

Section: Introductionmentioning

confidence: 99%

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Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Magare

Sastry

Gupta

et al. 2015

Int J Energy Environ Eng

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The accuracy of outdoor performance of a photovoltaic (PV) array can be improved by considering the spectral effects. In this paper, the impact of seasonal spectral variations on the three different silicon PV technologies: single junction amorphous silicon (a-Si), Heterojunction with Intrinsic Thin-layer (HIT) and multi crystalline silicon (mc-Si) has been presented first time in Indian environmental conditions. The spectral effect on HIT PV module technology has been presented first time along with the first simultaneous study of variation in spectral indicators by useful fraction (UF), average photon energy (APE) and spectral mismatch factor (MMF), based on monthly and seasonal data. The maximum observed variation in UF was 26.4, 8.2, 10.8 %, while in MMF, variation was up to 24.7, 7.6, 8.2 % for a-Si, HIT and mcSi, respectively, and in APE variation was up to 15.3 %. Among all three technology modules, first time reported HIT technology showed the least variation while maximum variation was observed in a-Si technology. The observed spectral effect variations have been discussed on Performance Ratio and compared with reported results of other global sites. The value and trends of spectral parameters are important to understand the effect of spectral variation on different technology. This study is especially important in Indian subcontinent perspective because of the strong monsoon season, where observed variation in the spectrum-related parameter found to be highest among all the seasons.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Magare

Sastry

Gupta

et al. 2015

Int J Energy Environ Eng

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“…To enable more wide spread deployment of PV modules, it is important to analyse the influences of environmental factors on outdoor performance of PV modules [12][13][14][15][16][17][18][19][20][21].…”

Section: Solar Spectrum and Additional Spectral Irradiance Descriptorsmentioning

confidence: 99%

“…Different authors use different indices to evaluate this behaviour [10,26]. The most used parameters are the Useful Fraction (UF) that is dependent from the PV technology under investigation and the Average Photon Energy (APE) [27][28][29][30][31].If the spectral irradiance encountered by a given device/cell (electrically series or parallel connected cells form PV modules) is ; the total irradiance, ; is defined as [28],where is the flux density (number per unit area and unit time) per unit wavelength of photons of energy and wavelength . UF is the ratio of the solar irradiance within the usable wavelength range of a PV device to the total solar irradiance and defined as (5) Here, is the band-gap of the solar device/cell which equates to a long wavelength cut-off of wavelength λ.…”

mentioning

confidence: 99%

“…With the use of these values, the final result of APE will be expressed in J, but it is usually expressed in taking into account that . APE value can be expressed in eV as usual.There are several studies reporting the performance of widely used different PV materials (crystalline silicon technologies, amorphous silicon, Cupper Indium (di) selenide CIS, Cadmium Telluride CdTe, third generation PV and other thin film technologies) in real installations at different locations with thermal and spectral effects [1,2,4,5,[10][11][12][13][14][15][16][18][19][20][21]24,. …”

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confidence: 99%

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Spectral irradiance effects on the outdoor performance of photovoltaic modules

Eke

Betts

Gottschalg

2017

Renewable and Sustainable Energy Reviews

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The outdoor performance of photovoltaic modules is influenced by spectrum. Even if the irradiance level and the operating temperature is the same, performance difference of photovoltaic modules between the seasons can be increase up to 15% depending on the photovoltaic module type. In this paper, seasonal spectral irradiance effects on the outdoor photovoltaic module performance and previous studies has been summarised thoroughly. The spectrum indicators which are used for spectra characteristics, Useful Fraction and Average Photon Energy are described in detail. This study also indicates spectrum effects on PV performance and outlines the present studies investigating this effect.Keywords: spectral effect, photovoltaic module, outdoor performance, useful fraction, average photon energy 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 spectrum, and a module temperature of 25⁰C. However, STC are not representatives of actual outdoor conditions in most regions of the world. Therefore, it is suspected that the score of a PV module by power rating method under STC is different from the actual performance in outdoor conditions [1][2][3][4][5].The performance of photovoltaic (PV) modules installed outdoor is greatly influenced by various ambient environmental factors such as incident irradiance, the module temperature and the spectral irradiance distribution.In this study, solar spectrum, the spectral effects on PV performance is discussed. There are a lot papers presented in different organizations outlines the effect on the installed PV systems. More than 200 studies are reviewed and some of them are published in journals or conference proceedings, the rest are unpublished or contains only local data. Solar Spectrum and Additional Spectral Irradiance DescriptorsEmission of radiation from the sun contributes to the solar spectrum as observed from Earth. Just above the Earth's atmosphere, the radiation intensity, or Solar Constant, is about 1.353 kW/m 2 [6,7] and the spectral distribution is referred to as an air mass zero (AM0) radiation spectrum. The Air Mass is a measure of how absorption in the atmosphere affects the spectral content and intensity of the solar radiation reaching the Earth's surface. The Air Mass number is given by (1) where is the angle of incidence ( when the sun is directly overhead). Moreover, the outdoor solar spectrum distribution changes during a day because of the aerosol and water vapour. Hence, it is rare to fit the standard solar spectrum (Fig.1 Therefore, a new parameter, angle of incidence is defined to explain the position of solar rays on the plane [10]. is a measure of deviation of something from "straight on". A surface directly facing the sun has an of zero, and a surface parallel to the sun (such as a sunrise striking a horizontal plane) has an of 90°. Sunlight with an inc...

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Influence of Average Photon Energy index on solar irradiance characteristics and outdoor performance of photovoltaic modules

Cornaro

Andreotti²

2012

Progress in Photovoltaics

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Solar spectral irradiance measurements on a routinely basis are relevant to study the influence of solar spectrum on the photovoltaic (PV) module performance, especially for thin film and third generation PV. Two spectroradiometers from EKO were added to the instrumentation available at the ESTER outdoor station of the University of Rome Tor Vergata. A detailed characterisation of the spectral irradiance at the site was carried on during more than 6 months of monitoring activity measuring spectral solar irradiance in the range 350–1700 nm with a time interval of 10 min on a horizontal plane. A wide variety of spectra were acquired in various weather conditions, and indications about the spectra behaviour on a daily and seasonal basis were obtained. Moreover, information about the effect of the weather conditions on the solar radiation spectral distribution were identified. The Average Photon Energy index was used as an indicator of the spectra characteristics. The same index was also used to evidence the solar spectrum influence on polycrystalline and double junction amorphous silicon PV modules

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Seasonal variation analysis of the outdoor performance of amorphous Si photovoltaic modules using the contour map

Cited by 41 publications

References 2 publications

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Effect of seasonal spectral variations on performance of three different photovoltaic technologies in India

Spectral irradiance effects on the outdoor performance of photovoltaic modules

Influence of Average Photon Energy index on solar irradiance characteristics and outdoor performance of photovoltaic modules

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