A detailed analysis of gains and losses of a fully-integrated flat roof amorphous silicon photovoltaic plant

Fanni, L.; Virtuani, Alessandro; Chianese, D.

doi:10.1016/j.solener.2011.06.029

Cited by 37 publications

(39 citation statements)

References 9 publications

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“…The observed decrease of PR from 86.7% the first year to 83.5% in the second year of operation seems to render results similar to previous study [60] and it is possible to be interpreted (exempt of soiling etc.) as a result of light degradation due to the StaeblereWronski effect [6,61].…”

Section: Performance Analysis Of the Pv Systemsupporting

confidence: 89%

Performance assessment of a thin film photovoltaic system under actual Mediterranean climate conditions in the island of Crete

Savvakis

Tsoutsos

2015

Energy

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Section: Performance Analysis Of the Pv Systemsupporting

confidence: 89%

Performance assessment of a thin film photovoltaic system under actual Mediterranean climate conditions in the island of Crete

Savvakis

Tsoutsos

2015

Energy

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“…In general, the outdoor electricity-generation of the PV generators is affected by the module temperature, planeof-array irradiance [26], spectral distribution [26,27], temperature coefficient [28], transmittance of aged PV glasses [29] and aged EVA films [30], dust effect [31e33], and partial shading effect on PV modules [34,35]. The superstrate-type a-Si:H single-junction PV modules may be free from the effect of the aged EVA films, however it is also significantly impacted by the Staebler-Wronski effect [27,36]. It takes about two years until the performance of a-Si:H single-junction PV modules becomes stable in the outdoor environment [37,38].…”

Section: Resultsmentioning

confidence: 99%

Performance of Si-based PV rooftop systems operated under distinct four seasons

Myong¹,

Park²,

Jeon³

2015

Renewable Energy

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a b s t r a c tWe have investigated the electrical energy yield of hydrogenated amorphous silicon (a-Si:H) singlejunction and crystalline (c-Si) photovoltaic (PV) rooftop systems operated under distinct four seasons. The impact of the module type and installed tilt angle on the annual electrical energy yield has been monitored and then compared with the data predicted by the computer simulation. Despite a good temperature coefficient and less shading effect of a-Si:H single-junction modules, the energy output gain of the a-Si:H single-junction PV generator is only 2.7% compared to the c-Si PV generator installed using c-Si PV modules. It is inferred that a nominal rated power of the a-Si:H single-junction modules determined by an indoor light soaking test is not suitable for the design of PV systems operated under distinct four seasons. Thus, the nominal rated power of the a-Si:H single-junction PV modules should be determined through a proper outdoor exposure test considering thermal annealing and light soaking effects under various seasonal weather conditions. In addition, it is found that the performance of the Sibased PV rooftop systems operated under distinct four seasons could be improved by simply toggling the tilt angle considering the plane-of-array irradiance and snowfall effect.

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“…The magnitude of this degradation is related to several factors, such as the a-Si layer thickness and the number of junctions, that may account for an initial power reduction between 15% and 35% (Fanni et al, 2011).…”

Section: Preconditioning Of the Modulesmentioning

confidence: 99%

“…In such a scenario, it is worth to note that the actual performance of PV modules in outdoor conditions is thus determined by the overlapping of several concurrent effects, which are difficult to differentiate and analyze individually (Fanni et al, 2011;Gottschalg et al, 2003).…”

Section: Introductionmentioning

confidence: 99%