Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system

Abstract As photovoltaic modules are increasingly used in renewable energy systems, ensuring energy efficiency by reducing the levelized cost of electricity has become the focus of current research. Herein, the 1‐year performances of both monofacial and bifacial photovoltaic modules were monitored,...

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Main Authors: Sungho Hwang, Yoonmook Kang, Hae‐seok Lee
Format: Article
Language:English
Published: Wiley 2023-08-01
Series:Energy Science & Engineering
Subjects:
Online Access:https://doi.org/10.1002/ese3.1497
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author Sungho Hwang
Yoonmook Kang
Hae‐seok Lee
author_facet Sungho Hwang
Yoonmook Kang
Hae‐seok Lee
author_sort Sungho Hwang
collection DOAJ
description Abstract As photovoltaic modules are increasingly used in renewable energy systems, ensuring energy efficiency by reducing the levelized cost of electricity has become the focus of current research. Herein, the 1‐year performances of both monofacial and bifacial photovoltaic modules were monitored, compared, and analyzed at a solar carport system in the Korean peninsula. The environmental parameters during the four seasons were investigated for both systems under ambient conditions. Irradiance was determined as the primary influencing parameter in the system. The energy yield of the bifacial module system was 3.08% higher than that of the monofacial system owing to rear‐side absorption during the study period. The loss mechanism for this lower yield was determined by investigating the irradiance effect. It was attributed to low bifaciality due to cell properties (optical and electrical properties, and the sorting effect) and module properties (shading effects from the junction box cable and frame design, and glass grid effect), design of the carport system, and the albedo effect. These analyses revealed that the photovoltaic energy yield can be increased further by reducing these loss parameters at the carport system. This study can contribute to achieving higher energy yield from photovoltaic systems during field applications.
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spelling doaj.art-849024e3c4664aba8b575f846b2407872023-12-21T06:55:47ZengWileyEnergy Science & Engineering2050-05052023-08-011182866288410.1002/ese3.1497Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport systemSungho Hwang0Yoonmook Kang1Hae‐seok Lee2Research Institute for Energy Technology Korea University Seoul Republic of KoreaGraduate School of Energy and Environment (KU‐KIST Green School) Korea University Seoul Republic of KoreaGraduate School of Energy and Environment (KU‐KIST Green School) Korea University Seoul Republic of KoreaAbstract As photovoltaic modules are increasingly used in renewable energy systems, ensuring energy efficiency by reducing the levelized cost of electricity has become the focus of current research. Herein, the 1‐year performances of both monofacial and bifacial photovoltaic modules were monitored, compared, and analyzed at a solar carport system in the Korean peninsula. The environmental parameters during the four seasons were investigated for both systems under ambient conditions. Irradiance was determined as the primary influencing parameter in the system. The energy yield of the bifacial module system was 3.08% higher than that of the monofacial system owing to rear‐side absorption during the study period. The loss mechanism for this lower yield was determined by investigating the irradiance effect. It was attributed to low bifaciality due to cell properties (optical and electrical properties, and the sorting effect) and module properties (shading effects from the junction box cable and frame design, and glass grid effect), design of the carport system, and the albedo effect. These analyses revealed that the photovoltaic energy yield can be increased further by reducing these loss parameters at the carport system. This study can contribute to achieving higher energy yield from photovoltaic systems during field applications.https://doi.org/10.1002/ese3.1497bifacial modulecarport systemcurrent mismatchenergy yield
spellingShingle Sungho Hwang
Yoonmook Kang
Hae‐seok Lee
Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
Energy Science & Engineering
bifacial module
carport system
current mismatch
energy yield
title Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
title_full Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
title_fullStr Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
title_full_unstemmed Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
title_short Performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
title_sort performance and energy loss mechanism of bifacial photovoltaic modules at a solar carport system
topic bifacial module
carport system
current mismatch
energy yield
url https://doi.org/10.1002/ese3.1497
work_keys_str_mv AT sunghohwang performanceandenergylossmechanismofbifacialphotovoltaicmodulesatasolarcarportsystem
AT yoonmookkang performanceandenergylossmechanismofbifacialphotovoltaicmodulesatasolarcarportsystem
AT haeseoklee performanceandenergylossmechanismofbifacialphotovoltaicmodulesatasolarcarportsystem