Field-Array Benchmark of Commercial Bifacial PV Technologies with Publicly Available Data

Pelaez, Silvana Ayala; Deline, Chris; Marion, Bill; Sekulic, Bill; Parker, Joshua; Byron, McDanold,; Stein, Joshua S.

doi:10.1109/pvsc45281.2020.9300379

Cited by 6 publications

(3 citation statements)

References 2 publications

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“…The scarcity of robust datasets is a significant hurdle, suggesting a pressing need for more comprehensive data collection to improve the predictability and reliability of bifacial PV system models. Transitioning to Figure 11(a), we examine the initial modeling attempts using the SAM NREL model [28,29], which did not adequately capture the performance of the VBPV system. The figure portrays a significant discrepancy between modeled DC power and measured DC power, evidenced by the mean model error of 37.52% and an RMSE of 0.31%.…”

Section: Bificail Pv System Gain Vs Solar Irradiancementioning

confidence: 99%

Beyond Traditional Boundaries: Exploring Vertical Bifacial Photovoltaic System Efficiency

Badran,

Dhimish

2024

Preprint

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This paper presents the first comprehensive study of a groundbreaking Vertically Mounted Bifacial Photovoltaic (VBPV) system, marking a significant innovation in solar energy technology. The VBPV system, characterized by its vertical orientation and the use of high-efficiency Heterojunction (HJT) cells, introduces a novel concept diverging from traditional solar panel installations. Our empirical research, conducted over a full year at the University of York, UK, offers an inaugural assessment of this pioneering technology. The study reveals that the VBPV system significantly outperforms both a vertically mounted monofacial PV (VMPV) system and a conventional tilted monofacial PV (TMPV) system in energy output. Key findings include a daily power output increase of 7.12% and 10.12% over the VMPV system and an impressive 26.91% and 22.88% enhancement over the TMPV system during early morning and late afternoon hours, respectively. Seasonal analysis shows average power gains of 11.42% in spring, 8.13% in summer, 10.94% in autumn, and 12.45% in winter compared to the VMPV system. Against the TMPV system, these gains are even more substantial, peaking at 24.52% in winter. These results underscore the VBPV system's exceptional efficiency in harnessing solar energy across varied environmental conditions, establishing it as a promising and sustainable solution in solar energy technology.

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Section: Bificail Pv System Gain Vs Solar Irradiancementioning

confidence: 99%

Beyond Traditional Boundaries: Exploring Vertical Bifacial Photovoltaic System Efficiency

Badran,

Dhimish

2024

Preprint

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“…Also, more complex arrangements of modules with different orientations or different numbers of modules in each row and back shading caused by the mounting system cannot be considered within the simulation. Both libraries require a sun position calculation and calculation of the module inclination angles [5,12]. To speed up the simulation, these calculations are performed only once via bifacial_radiance, which performs this calculation via pvlib [12].…”

Section: Irradiance Calculationmentioning

confidence: 99%

“…Both libraries require a sun position calculation and calculation of the module inclination angles [5,12]. To speed up the simulation, these calculations are performed only once via bifacial_radiance, which performs this calculation via pvlib [12]. The results of the calculations are then transferred to pvfactors in the form of a data frame.…”

Section: Irradiance Calculationmentioning

confidence: 99%

Simulation of the irradiance and yield calculation of bifacial PV systems in the USA and Germany by combining ray tracing and view factor model

Grommes

Schemann²,

Klag³

et al. 2023

EPJ Photovolt.

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Compared to conventional photovoltaic (PV), there are more influencing factors in bifacial photovoltaics to be considered to calculate incoming irradiance and energy yield. Accurate models to investigate the influences of the elevation, the albedo of the ground, the shading conditions between the PV rows and many other rear-side related factors are required. This paper combines the ray tracing (RT) and view factor (VF) models to calculate the irradiance with a subsequent electrical yield calculation using the one-diode model. To verify the results of the developed open-source simulation program BifacialSimu, accurate data from a plant in Golden, USA (single-axis tracked) and a commercially operated plant in Germany (fixed-tilt) are used. Through comparisons to the actual data, it can be concluded that a combination of RT and VF models seems to be valid for longer simulation periods with several months since the relative errors balance out. The RT-only simulation accurately reproduces the precise hourly radiation and electrical yield pattern. Still, a continuous positive deviation was found, which does not even out over long periods and is thus less accurate than the VF/RT combination. A simulation for a single month with RT can take several hours. Thus, the best simulation mode results according to user requirements.

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Model‐Chain Validation for Estimating the Energy Yield of Bifacial Perovskite/Silicon Tandem Solar Cells

et al. 2022

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The power conversion efficiency of conventional silicon solar cells approaches its theoretical limit. Bifacial operation and the perovskite/silicon tandem device architecture are promising approaches for increasing the energy yield of photovoltaic modules. Here, an energy yield calculation tool for (bifacial) perovskite/silicon tandem solar cells is presented. It uses a chain of models for irradiance, optical absorption, and temperature‐dependent electrical performance. Each step is validated with irradiance and performance data from a rooftop installation with mono‐ and bifacial silicon solar cells in Jerusalem, Israel. Selecting the data for two days (one in summer, one in winter) and considering the high‐reflective ground of this particular installation (albedo 60%) a 20% increased energy yield for a bifacial module with respect to a monofacial module is modeled. This result matches well with experimental data. When “upgrading” the silicon solar cell to a perovskite/silicon tandem solar cell, the case study predicts up to 40% additional energy yield. Combining the concepts of bifacial solar operation and perovskite/silicon tandem solar cells results in up to 60% increased energy with a high albedo ground, and is therefore a promising approach to further decrease the levelized cost of electricity for photovoltaic electricity generation.

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Field-Array Benchmark of Commercial Bifacial PV Technologies with Publicly Available Data

Cited by 6 publications

References 2 publications

Beyond Traditional Boundaries: Exploring Vertical Bifacial Photovoltaic System Efficiency

Beyond Traditional Boundaries: Exploring Vertical Bifacial Photovoltaic System Efficiency

Simulation of the irradiance and yield calculation of bifacial PV systems in the USA and Germany by combining ray tracing and view factor model

Model‐Chain Validation for Estimating the Energy Yield of Bifacial Perovskite/Silicon Tandem Solar Cells

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