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

Magare, Dhiraj; Sastry, O.S.; Gupta, Rajesh; Betts, Thomas R.; Gottschalg, Ralph; Kumar, Arun; Bora, Birinchi; Singh, Yamuna

doi:10.1007/s40095-015-0190-0

Cited by 41 publications

(12 citation statements)

References 28 publications

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“…The data for Si thin‐film module 2 (a‐Si:H/μc‐Si:H tandem) are dominated by annual modulations of the FF (and to a much lesser extent of V OC ) as expected for seasonal light‐soaking/thermal annealing cycles according to the Staebler–Wronski effect. Note that similar observations have been reported earlier for outdoor data of a‐Si:H modules . Also, the second Si thin‐film module 3 (a‐Si:H/a‐Si:H tandem) exhibits such cycles but clearly with an overlay by an initial degradation.…”

Section: Resultssupporting

confidence: 88%

Performance stability of photovoltaic modules in different climates

Schweiger

Bonilla

Herrmann

et al. 2017

Progress in Photovoltaics

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The current-voltage (I-V) characteristics of 15 different photovoltaic modules are monitored during more than 2 years of operation at four locations (Germany, Italy, India and Arizona) corresponding to four different climate zones. The electrical stability of the photovoltaic modules during the time of outdoor exposure is investigated in terms of measured I-V curve translated to standard test conditions. This translation compensates the influence of module temperature, irradiance, spectral effects and soiling on the I-V curves. The changes of output power after these corrections are attributed to initial consolidation phases, to long-term degradation of the electrical properties and to seasonal cycles associated with metastabilities. Modules made from crystalline Si turn out to show no or only minor effects. Thin-Film modules (CdTe, Cu(In,Ga)Se 2 and thin-film Si) exhibit a wide spread of metastable behaviour with consistent patterns for identical modules in different climates but with significant differences amongst different manufacturers of the same thin-film technology. We show further that this metastable behaviour influences the energy yield of the modules.

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Section: Resultssupporting

confidence: 88%

Performance stability of photovoltaic modules in different climates

Schweiger

Bonilla

Herrmann

et al. 2017

Progress in Photovoltaics

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“…In the presented study, based on the data collected in 2018 it is worth to address the degradation processes that were supposed to occur during previous years of solar plant operation. Quantity estimation of modules degradation was made possible by linear regression of the energy yield decrease [5] presented in Table 5. Irradiation changes during each subsequent year were also taken into account: 1338 (kWh/m 2 )/y in 2015, 1249 (kWh/m 2 )/y in 2016 and 1160 (kWh/m 2 )/y in 2017.…”

Section: Energy Production and Lossesmentioning

confidence: 99%

Performance Assessment of Four Different Photovoltaic Technologies in Poland

Zdyb

Gulkowski

2020

Energies

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Due to the observed increase of photovoltaic installations capacity in Poland, the research on the performance of different modules became an important issue from the practical and scientific point of view. This paper is intended to help system planners to choose photovoltaic modules and inverters taking into account the actual operating conditions. The study is devoted to the assessment of four different technologies of photovoltaic modules: polycrystalline silicon (pc-Si), amorphous silicon (a-Si), copper indium gallium selenide (CIGS), and cadmium telluride (CdTe). The data was collected at a solar plant located at high latitude location, in the eastern part of Poland, during the fourth year of the plant operation. The influence of irradiance on the temperature and efficiency of modules was studied. The results show that the efficiency of the pc-Si and CIGS modules decreases with rising temperature; however, the efficiency of the a-Si and CdTe modules is more stable. The impact of changing external conditions on the inverter efficiency as well as array and system losses during various seasons of the year was shown. The inverter efficiency reaches up to 98% in summer and drops as low as 30% in winter. Small average array capture losses of 7.41 (kWh/kWp)/month (0.25 h/day) are observed for the CIGS and 10.4 (kWh/kWp)/month (0.35 h/day) for pc-Si modules. The a-Si and CdTe array losses are higher, up to 2.83 h/day for CdTe in summer. The results indicate high annual energy yields of the pc-Si and CIGS modules, 1130 kWh/kWp and 1140 kWh/kWp, respectively. This research provided new data on pc-Si and especially the performance of the thin film modules and losses in a photovoltaic installation under temperate climate.

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“…The effect of solar spectrum variation on solar cells can be quantified through the effective ratio (ER). [ 19 ] ER is defined as the ratio of energy in the effective response wavelength range of the solar cells to the total energy in the entire spectrum, which the following expression can calculate.

ER = \frac{\int_{normalc}^{normald} E false(λ false) d λ}{\int_{normala}^{normalb} E false(λ false) d λ}

where E is the spectral irradiance (W m −2 ), and a and b are wavelength ranges of spectral irradiance sensor from 280 and 4000 nm. At the same time, c and d are wavelength ranges of the effective response wavelength range of the solar cells.…”

Section: Resultsmentioning

confidence: 99%

Perovskite Solar Module Outdoor Field Testing and Spectral Irradiance Effects on Power Generation

Huang

Shou

Sun

et al. 2022

Physica Rapid Research Ltrs

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One of the challenges facing the industrialization of perovskite solar cells (PSCs) is the lack of outdoor field‐testing evaluation, especially for large‐scale perovskite solar modules. Herein, the real‐world operating performance of an efficient PSC module in the rooftop field test is characterized and analyzed. The maximum power point of a 125 mm × 125 mm PSC module, with a power conversion efficiency (PCE) of 10.34%, is tracked outdoors. Meanwhile, the weather information is recorded, which enables us to investigate the correlation between specific outdoor factors and the device performance. Compared with the multicrystalline silicon (mc‐Si) solar cell as a reference, the PSC module is more sensitive to outdoor solar spectral variations due to its narrow absorption region. Furthermore, benefitting from the long‐wave bump and redshift of the spectral, the available energy ratio of PSC module increases in the morning and afternoon hours, and its performance ratio (PR) value increases accordingly. During the test, the PR of PSC module reaches a maximum of 92.3%, an average of 5% higher than that of the mc‐Si counterpart.

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

Cited by 41 publications

References 28 publications

Performance stability of photovoltaic modules in different climates

Performance stability of photovoltaic modules in different climates

Performance Assessment of Four Different Photovoltaic Technologies in Poland

Perovskite Solar Module Outdoor Field Testing and Spectral Irradiance Effects on Power Generation

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