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Title: Pathways for mitigating thermal losses in solar photovoltaics

Abstract

To improve the performance of solar photovoltaic devices one should mitigate three types of losses: optical, electrical and thermal. However, further reducing the optical and electrical losses in modern photovoltaic devices is becoming increasingly costly. Therefore, there is a rising interest in minimizing the thermal losses. These correspond to the reduction in electrical power output resultant of working at temperatures above 25 °C and the associated accelerated aging. Here, we quantify the impact of all possible strategies to mitigate thermal losses in the case of the mainstream crystalline silicon technology. Results indicate that ensuring a minimum level of conductive/convective cooling capabilities is essential. We show that sub-bandgap reflection and radiative cooling are strategies worth pursuing and recommend further field testing in real-time operating conditions. The general method we propose is suitable for every photovoltaic technology to guide the research focused on reducing thermal losses.

Authors:
; ; ;
Publication Date:
Research Org.:
Portland State Univ., Portland, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1467158
Alternate Identifier(s):
OSTI ID: 1545763
Grant/Contract Number:  
EE0008168
Resource Type:
Published Article
Journal Name:
Scientific Reports
Additional Journal Information:
Journal Name: Scientific Reports Journal Volume: 8 Journal Issue: 1; Journal ID: ISSN 2045-2322
Publisher:
Nature Publishing Group
Country of Publication:
United Kingdom
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Vaillon, Rodolphe, Dupré, Olivier, Cal, Raúl Bayoán, and Calaf, Marc. Pathways for mitigating thermal losses in solar photovoltaics. United Kingdom: N. p., 2018. Web. doi:10.1038/s41598-018-31257-0.
Vaillon, Rodolphe, Dupré, Olivier, Cal, Raúl Bayoán, & Calaf, Marc. Pathways for mitigating thermal losses in solar photovoltaics. United Kingdom. doi:10.1038/s41598-018-31257-0.
Vaillon, Rodolphe, Dupré, Olivier, Cal, Raúl Bayoán, and Calaf, Marc. Mon . "Pathways for mitigating thermal losses in solar photovoltaics". United Kingdom. doi:10.1038/s41598-018-31257-0.
@article{osti_1467158,
title = {Pathways for mitigating thermal losses in solar photovoltaics},
author = {Vaillon, Rodolphe and Dupré, Olivier and Cal, Raúl Bayoán and Calaf, Marc},
abstractNote = {To improve the performance of solar photovoltaic devices one should mitigate three types of losses: optical, electrical and thermal. However, further reducing the optical and electrical losses in modern photovoltaic devices is becoming increasingly costly. Therefore, there is a rising interest in minimizing the thermal losses. These correspond to the reduction in electrical power output resultant of working at temperatures above 25 °C and the associated accelerated aging. Here, we quantify the impact of all possible strategies to mitigate thermal losses in the case of the mainstream crystalline silicon technology. Results indicate that ensuring a minimum level of conductive/convective cooling capabilities is essential. We show that sub-bandgap reflection and radiative cooling are strategies worth pursuing and recommend further field testing in real-time operating conditions. The general method we propose is suitable for every photovoltaic technology to guide the research focused on reducing thermal losses.},
doi = {10.1038/s41598-018-31257-0},
journal = {Scientific Reports},
number = 1,
volume = 8,
place = {United Kingdom},
year = {2018},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1038/s41598-018-31257-0

Citation Metrics:
Cited by: 3 works
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    Works referencing / citing this record:

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    Analysis of Driving Factors of Photovoltaic Power Generation Efficiency: A Case Study in China
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