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Bifacial module characterization analysis with current mismatched PERC cells

  • Original Paper - Condensed Matter
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Abstract

In the photovoltaics (PV) industry, bifacial modules have already captured approximately 30% of the market share in 2022. This is attributed to their ability to yield higher energy output and lower the levelized cost of electricity (LCOE) compared to monofacial modules due to increased absorption from the rear side. The extent of rear-side absorption is dependent on bifaciality, which is the ratio of rear-side module power to front side module power. Therefore, a higher bifaciality can lead to increased module power in the field, resulting in higher energy yields. This study investigates the current mismatch effect on bifacial modules, specifically addressing cell mixing in mass production. Through test samples, it was determined that this effect is more critical in bifacial modules compared to monofacial modules. This research aims to contribute to the PV industry by providing methods to mitigate current mismatch and improve bifaciality of passivated emitter and rear contact (PERC) cells, especially for large wafer sizes such as M10 (182 × 182 mm2) or M12 (210 × 210 mm2) products in the future. The research result of this paper can enhance energy yields and reduce LCOE.

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Acknowledgements

This work was supported by the National Research Foundation of Korea and funded by the South Korean Ministry of Science and Information and Communication Technologies (Grant No. 2022M3J7A1066428). This work was also supported by a Korea Institute of Energy Technology Evaluation and Planning (KETEP) from the Ministry of Trade, Industry, and Energy (20214000000680).

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Authors and Affiliations

  1. Research Institute for Energy Technology, Korea University, Seoul, 02841, Republic of Korea

    Sungho Hwang

  2. Graduate School of Energy and Environment, Korea University, Seoul, 02841, Republic of Korea

    Hae‐seok Lee & Yoonmook Kang

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  1. Sungho Hwang
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  2. Hae‐seok Lee
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Correspondence to Sungho Hwang.

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Hwang, S., Lee, H. & Kang, Y. Bifacial module characterization analysis with current mismatched PERC cells. J. Korean Phys. Soc. 84, 145–150 (2024). https://doi.org/10.1007/s40042-023-00956-x

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  • DOI: https://doi.org/10.1007/s40042-023-00956-x

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