Optical approaches for passive thermal management in c-Si photovoltaic modules
Abstract
Elevated operating temperatures of solar cells encapsulated in modules lead to reduced efficiency and module lifetime. Here, we provide a comprehensive overview of the challenges and opportunities for passive optical thermal management of PV modules based on the rejection of sub-band-gap light by idealized reflectors and scatterers applied at different interfaces within crystalline Si modules and discuss the limitations to performance at each interface. We find that the annual power-weighted average operating temperature is most readily reduced via sub-band-gap reflection from the module glass, by 3.3 K for Al-BSF modules and 2.9 K for PERC modules with 100% sub-band-gap reflection. Sub-band-gap reflection at the cell interface offers up to 2.2 K (1.8 K) temperature reduction for Al-BSF (PERC) modules, increased cell rear reflection offers up to 1.2 K temperature reduction, and directional scattering offers up to 1.5 K reduction.
- Authors:
- Publication Date:
- Research Org.:
- Univ. of Minnesota, Minneapolis, MN (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office; National Science Foundation (NSF)
- OSTI Identifier:
- 1788113
- Alternate Identifier(s):
- OSTI ID: 1785677; OSTI ID: 1788431
- Report Number(s):
- NREL/JA-5K00-78679
Journal ID: ISSN 2666-3864; S2666386421001259; 100430; PII: S2666386421001259
- Grant/Contract Number:
- EE0008542; AC36-08GO28308; DMR-2011401
- Resource Type:
- Published Article
- Journal Name:
- Cell Reports Physical Science
- Additional Journal Information:
- Journal Name: Cell Reports Physical Science Journal Volume: 2 Journal Issue: 5; Journal ID: ISSN 2666-3864
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; solar energy; photovoltaics; spectrally selective structures; thermal management
Citation Formats
Slauch, Ian M., Deceglie, Michael G., Silverman, Timothy J., and Ferry, Vivian E. Optical approaches for passive thermal management in c-Si photovoltaic modules. United States: N. p., 2021.
Web. doi:10.1016/j.xcrp.2021.100430.
Slauch, Ian M., Deceglie, Michael G., Silverman, Timothy J., & Ferry, Vivian E. Optical approaches for passive thermal management in c-Si photovoltaic modules. United States. https://doi.org/10.1016/j.xcrp.2021.100430
Slauch, Ian M., Deceglie, Michael G., Silverman, Timothy J., and Ferry, Vivian E. Sat .
"Optical approaches for passive thermal management in c-Si photovoltaic modules". United States. https://doi.org/10.1016/j.xcrp.2021.100430.
@article{osti_1788113,
title = {Optical approaches for passive thermal management in c-Si photovoltaic modules},
author = {Slauch, Ian M. and Deceglie, Michael G. and Silverman, Timothy J. and Ferry, Vivian E.},
abstractNote = {Elevated operating temperatures of solar cells encapsulated in modules lead to reduced efficiency and module lifetime. Here, we provide a comprehensive overview of the challenges and opportunities for passive optical thermal management of PV modules based on the rejection of sub-band-gap light by idealized reflectors and scatterers applied at different interfaces within crystalline Si modules and discuss the limitations to performance at each interface. We find that the annual power-weighted average operating temperature is most readily reduced via sub-band-gap reflection from the module glass, by 3.3 K for Al-BSF modules and 2.9 K for PERC modules with 100% sub-band-gap reflection. Sub-band-gap reflection at the cell interface offers up to 2.2 K (1.8 K) temperature reduction for Al-BSF (PERC) modules, increased cell rear reflection offers up to 1.2 K temperature reduction, and directional scattering offers up to 1.5 K reduction.},
doi = {10.1016/j.xcrp.2021.100430},
journal = {Cell Reports Physical Science},
number = 5,
volume = 2,
place = {United States},
year = {Sat May 01 00:00:00 EDT 2021},
month = {Sat May 01 00:00:00 EDT 2021}
}
https://doi.org/10.1016/j.xcrp.2021.100430
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