MODELING OUTPUT PERFORMANCE OF BIFACIAL SOLAR CELLS BASED ON SINGLE DIODE MODEL

A. Rustemov; M. Ibraimov; D. Almen; Ye. Svanbayev; A. Saymbetov; M. Nurgaliyev; A. Kapparova; S. Orynbassar

doi:10.31489/2026N2/57-66

Authors

DOI:

https://doi.org/10.31489/2026N2/57-66

Keywords:

Bifacial photovoltaic cells, Monofacial photovoltaic cells, Single-diode model, Bifacial factor, Bifacial energy effect

Abstract

Bifacial photovoltaic cells represent a promising solution for increasing the energy efficiency of solar modules by utilizing the rear surface. In this study, the bifacial solar cell was modeled based on the single-diode model. Current-voltage (I-V) and power-voltage (P-V) characteristics were constructed for various bifacial factor values, allowing us to consider both typical operating conditions and configurations with increased reflectivity of the rear surface. Calculations showed that a 36-cell module provides a 3.5% increase in efficiency compared to a monofacial module. The annual energy output of the bifacial module was 910 Wh versus 517 Wh for the monofacial module, representing a 76% increase. Daily and monthly energy production profiles confirmed the significant contribution of the rear side and the consideration of seasonal fluctuations in solar radiation. These results demonstrate the high potential of bifacial modules to improve power generation and overall energy efficiency of photovoltaic systems.

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MODELING OUTPUT PERFORMANCE OF BIFACIAL SOLAR CELLS BASED ON SINGLE DIODE MODEL