50 Per cent more output power from an albedo-collecting flat panel using bifacial solar cells

Cuevas, Andrés; Ĺuque, A.; Eguren, J.; Alamo, J.A. del

doi:10.1016/0038-092x(82)90078-0

Cited by 164 publications

(89 citation statements)

References 3 publications

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“…This gave rise to the so-called albedo-collecting modules that consisted of flat modules of bifacial cells that collected the diffusely reflected light of a white background on its rear face. In some optimal cases the extra output due to the albedo was over 50% [39] but in most cases it was limited to around 20 to 30%. Figure 11.16 shows an example of such albedo-collecting fields.…”

Section: Other Concentrator Programsmentioning

confidence: 96%

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Photovoltaic Concentrators

Swanson¹

2003

Handbook of Photovoltaic Science and Engineering

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Section: Other Concentrator Programsmentioning

confidence: 96%

“…12 The retained cell structure was based on the long base lifetime found in lowly doped silicon. Lowly doped silicon was thought at the time to produce low voltages, but as the cell operated in high injection the pp + homopolar junction provided additional voltage to the existing level of voltage in ordinary cells [39].…”

Section: Other Concentrator Programsmentioning

confidence: 99%

Photovoltaic Concentrators

Swanson¹

2003

Handbook of Photovoltaic Science and Engineering

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“…6,[11][12][13][14] Although the concept of bifacial cells [15][16][17] is not new, their high efficiency and reduced temperature sensitivity have sparked recent commercial interest. The thermodynamics and the optimization of two-junction bifacial cells have been reported recently.…”

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confidence: 99%

Thermodynamic efficiency limits of classical and bifacial multi-junction tandem solar cells: An analytical approach

Alam

Khan

2016

Applied Physics Letters

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Bifacial tandem cells promise to reduce three fundamental losses (i.e., above-bandgap, below bandgap, and the uncollected light between panels) inherent in classical single junction photovoltaic (PV) systems. The successive filtering of light through the bandgap cascade and the requirement of current continuity make optimization of tandem cells difficult and accessible only to numerical solution through computer modeling. The challenge is even more complicated for bifacial design. In this paper, we use an elegantly simple analytical approach to show that the essential physics of optimization is intuitively obvious, and deeply insightful results can be obtained with a few lines of algebra. This powerful approach reproduces, as special cases, all of the known results of conventional and bifacial tandem cells and highlights the asymptotic efficiency gain of these technologies.

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“…The use of bifacial solar cells for solar power generation can potentially reduce the cost of generated electricity, because this solar cell type can convert incident sunlight to electrical energy from both sides of the cell. Cuevas et al have demonstrated bifacial modules with 50% more electric power generation by collecting albedo radiation from the rooftop and from the surroundings [2]. Thus, bifacial solar cells not only increase the power density, but could also reduce the area-related cost for a photovoltaic (PV) power system [3].…”

Section: Introductionmentioning

confidence: 98%

A new method to characterize bifacial solar cells

Singh

Walsh

Aberle

2012

Prog. Photovolt: Res. Appl.

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We present a new method to characterize bifacial solar cells under standard test conditions (STC). The method considers the bifacial operation of the cell and provides the characteristics for simultaneous front and rear side illumination rather than providing the front and the rear side characteristics separately. The method involves measurements of front side electrical parameters (efficiency, open-circuit voltage, short-circuit current and fill factor) and rear side short-circuit current under STC. Two new parameters are introduced, namely bifacial 1.x efficiency (effective efficiency) and gain-efficiency product, which are calculated from the measured STC parameters. The former provides information related to the cell design considering the bifacial operation, whereas the latter provides the end-use benefits from the modules with bifacial cells for a particular installation. To calculate the bifacial 1.x efficiency and the gain-efficiency product, a one-diode solar cell equivalent circuit is used. Characteristic plots are shown for the newly introduced parameters as a function of rear-side illumination for various example solar cells. A sensitivity analysis is performed to understand the influence of each single-sided STC solar cell parameter on the newly introduced parameters. This sensitivity analysis shows that the fill factor and the rear-to-front current ratio are the most critical parameters for bifacial solar cells.

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50 Per cent more output power from an albedo-collecting flat panel using bifacial solar cells

Cited by 164 publications

References 3 publications

Photovoltaic Concentrators

Photovoltaic Concentrators

Thermodynamic efficiency limits of classical and bifacial multi-junction tandem solar cells: An analytical approach

A new method to characterize bifacial solar cells

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