Bifacial module characterization analysis with current mismatched PERC cells
- 주제(키워드) Bifaciality · Bifacial module · Current mismatch
- 발행기관 한국물리학회
- 발행년도 2024
- 총서유형 Journal
- DOI http://dx.doi.org/10.1007/s40042-023-00956-x
- KCI ID ART003048225
- 본문언어 영어
초록/요약
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 feld, resulting in higher energy yields. This study investigates the current mismatch efect on bifacial modules, specifcally addressing cell mixing in mass production. Through test samples, it was determined that this efect 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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