Simulating the energy yield of a bifacial photovoltaic power plant

Chudinzow, Dimitrij; Haas, Jannik; Díaz-Ferrán, Gustavo; Moreno-Leiva, Simón; Eltrop, Ludger

doi:10.1016/j.solener.2019.03.071

Cited by 63 publications

(23 citation statements)

References 11 publications

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“…shaded photovoltaic area, m 2 shaded area under field, gaps included, m 2 total area occupied by solar field, m 2 c width of panel projected to the ground by sun,…”

Section: Nomenclaturementioning

confidence: 99%

“…In the literature there are several calculation models that have dealt with the prediction of performances. Chudinzow et al [2] proposed a model to investigate the behaviour of bifacial PV power plants in more detail. They calculate the absorbed irradiation obtained from eight irradiance contributions for the front and rear of each cell string: direct and diffuse radiation arriving from sky and from ground.…”

Section: Introductionmentioning

confidence: 99%

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Performance Analysis of a Double-Sided PV Plant Oriented with Backtracking System

Nicoletti¹,

Cucumo²,

Ferraro³

et al. 2020

MMEP

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Among the new technologies for the exploitation of the solar source, double-sided photovoltaic panels represent a valid high efficiency solution. These are latest generation photovoltaic panels that allow you to capture solar radiation even from the back and to obtain a greater production of electricity compared to traditional singlesided panels. The performance of the panel is higher, with the consequent possibility of reducing the installation surface. The paper defines a calculation model to analyse performances of a double-sided photovoltaic field, for both type of orientation N-S and E-W, in order to assess the effective increase in performance compared to a traditional system. Panels are equipped with a single-axis solar tracker, which changes their inclination so that they can have the best exposure to solar radiation. The study also focuses on the optimal tracking methodology, in order to reduce the losses caused by shading. The applied technique is that of "backtracking". We have seen that backtracking is not useful for bifacial panels, but only for mono-facial. In the work, a parametric analysis is also conducted to evaluate the increase in efficiency due to distance between rows of panels.

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“…shaded photovoltaic area, m 2 shaded area under field, gaps included, m 2 total area occupied by solar field, m 2 c width of panel projected to the ground by sun,…”

Section: Nomenclaturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance Analysis of a Double-Sided PV Plant Oriented with Backtracking System

Nicoletti¹,

Cucumo²,

Ferraro³

et al. 2020

MMEP

View full text Add to dashboard Cite

show abstract

“…To date, numerous models have been proposed and experimental data collected to study and optimize the performance of bifacial PV systems. Both three-dimensional (3D, see Reference [2][3][4][5][6][7][8][9][10]) and two-dimensional (2D, see, for instance, Reference [11][12][13]) models of bifacial PV devices have been proposed. Though the former are more mathematically complex, they can, in principle, lead to more accurate results taking into account more closely the PV system geometry.…”

Section: Introductionmentioning

confidence: 99%

Numerical Modeling of Bifacial PV String Performance: Perimeter Effect and Influence of Uniaxial Solar Trackers

et al. 2020

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The bifacial photovoltaic (PV) systems have recently met large interest. The performance of such systems heavily depends on the installation conditions and, in particular, on the albedo radiation collected by the module rear side. Therefore, it is of crucial importance to have an accurate performance model. To date, in the scientific literature, numerous models have been proposed and experimental data collected to study and optimize bifacial PV system performance. Currently, 3D and 2D models of bifacial PV devices exist. Though the former are more mathematically complex, they can lead to more accurate results, since they generally allow to fully consider the main aspects influencing a bifacial PV system performance. Recently, we have proposed and validated through experimental data a 3D model tested as a function of module height, tilt angle, and ground albedo. In this work, through such a model, we studied the role played by the perimeter zones surrounding the PV string, by considering PV strings of 30 or 60 modules. We considered the cases of fixed installation with optimal PV module tilt and of installation with uniaxial horizontal solar tracker. We evaluated the PV energy yield as a function of the size of the perimeter zones for the two cases, i.e., both with and without the solar tracker. In optimal perimeter conditions, we then studied the behavior of bifacial and mono-facial PV strings by varying the geographical location in a large latitude range.

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“…highly reflective [19][20][21][22]. The application and mainly the physics of bifacial cells are presented in the dissertation [19].…”

mentioning

confidence: 99%

“…Reference [21] compares the performance of vertical and south facing bifacial PV collector fields. A recent article [22] on simulating the energy yield of a bifacial photovoltaic plant investigates the influence of ground size, cast ground shadow and ground reflectivity on the energy yield. The only reference, as far as we know, on bifacial PV modules suggested for window shading by overhangs is mentioned in [23].…”

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confidence: 99%

Shading by Overhang PV Collectors

2019

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Photovoltaic modules integrated into buildings may provide shading to windows, doors and walls to protect against sun rays and at the same time generate ancillary electrical energy. The study develops the methodology for calculating the shadow variation cast by overhangs on doors, windows, carports, and calculates the annual incident energy (beam, diffuse and global energy) on overhangs made up of conventional and bifacial PV modules. The methodology of the present study is different from published articles including software programs. The study starts with shadows on walls cast by a horizontal pole and follows by shadows on walls cast by horizontal plates, inclined pole, inclined plate, and shaded area. The study deals also with overhangs placed one above the other. The calculation of the diffuse radiation involves the calculation of view factors to sky, to ground and between overhangs. In addition, the present study suggests using bifacial PV modules for overhangs and calculates the contribution of the reflective energy (5% and more) from walls and ground to the rear side of the bifacial PV module.

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Simulating the energy yield of a bifacial photovoltaic power plant

Cited by 63 publications

References 11 publications

Performance Analysis of a Double-Sided PV Plant Oriented with Backtracking System

Performance Analysis of a Double-Sided PV Plant Oriented with Backtracking System

Numerical Modeling of Bifacial PV String Performance: Perimeter Effect and Influence of Uniaxial Solar Trackers

Shading by Overhang PV Collectors

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