Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules

Vivian Ferry; Ian Slauch; Michael Deceglie; Timothy Silverman

doi:10.1109/PVSC45281.2020.9300678

Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules

Vivian Ferry, Ian Slauch, Michael Deceglie, Timothy Silverman

Materials Science

University of Minnesota

Research output: Contribution to conference › Paper › peer-review

Abstract

Parasitic absorption in photovoltaic modules is a major source of waste heat, which drives operating temperatures 20-30K above ambient. Spectrally-selective sub-bandgap reflection can reduce parasitic absorption, thereby improving module efficiency and power output. Here, we investigate the performance of 1-D spectrally-selective mirrors in monofacial Al BSF and PERC modules, and bifacial PERC modules. In monofacial modules, these mirrors offer >1.2% increase in energy yield compared to single-layer anti-reflection coatings, while cooling by over 1K on average. Mirrors reduced bifacial module parasitic absorption by up to 34 W/m2 out of 1240 W/m2 incident.

Original language	American English
Pages	1388-1390
Number of pages	3
DOIs	https://doi.org/10.1109/PVSC45281.2020.9300678 https://doi.org/10.1109/PVSC45281.2020.9300678
State	Published - 14 Jun 2020
Event	47th IEEE Photovoltaic Specialists Conference, PVSC 2020 - Calgary, Canada Duration: 15 Jun 2020 → 21 Aug 2020

Conference

Conference	47th IEEE Photovoltaic Specialists Conference, PVSC 2020
Country/Territory	Canada
City	Calgary
Period	15/06/20 → 21/08/20

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

NREL Publication Number

NREL/CP-5K00-77307

Keywords

bifacial
parasitic absorption
ray-tracing
spectrally-selective reflection
thermal management

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules",

abstract = "Parasitic absorption in photovoltaic modules is a major source of waste heat, which drives operating temperatures 20-30K above ambient. Spectrally-selective sub-bandgap reflection can reduce parasitic absorption, thereby improving module efficiency and power output. Here, we investigate the performance of 1-D spectrally-selective mirrors in monofacial Al BSF and PERC modules, and bifacial PERC modules. In monofacial modules, these mirrors offer >1.2% increase in energy yield compared to single-layer anti-reflection coatings, while cooling by over 1K on average. Mirrors reduced bifacial module parasitic absorption by up to 34 W/m2 out of 1240 W/m2 incident.",

keywords = "bifacial, parasitic absorption, ray-tracing, spectrally-selective reflection, thermal management",

author = "Vivian Ferry and Ian Slauch and Michael Deceglie and Timothy Silverman",

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Ferry, V, Slauch, I, Deceglie, M & Silverman, T 2020, 'Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules', Paper presented at 47th IEEE Photovoltaic Specialists Conference, PVSC 2020, Calgary, Canada, 15/06/20 - 21/08/20 pp. 1388-1390. https://doi.org/10.1109/PVSC45281.2020.9300678, https://doi.org/10.1109/PVSC45281.2020.9300678

TY - CONF

T1 - Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules

AU - Ferry, Vivian

AU - Slauch, Ian

AU - Deceglie, Michael

AU - Silverman, Timothy

PY - 2020/6/14

Y1 - 2020/6/14

N2 - Parasitic absorption in photovoltaic modules is a major source of waste heat, which drives operating temperatures 20-30K above ambient. Spectrally-selective sub-bandgap reflection can reduce parasitic absorption, thereby improving module efficiency and power output. Here, we investigate the performance of 1-D spectrally-selective mirrors in monofacial Al BSF and PERC modules, and bifacial PERC modules. In monofacial modules, these mirrors offer >1.2% increase in energy yield compared to single-layer anti-reflection coatings, while cooling by over 1K on average. Mirrors reduced bifacial module parasitic absorption by up to 34 W/m2 out of 1240 W/m2 incident.

AB - Parasitic absorption in photovoltaic modules is a major source of waste heat, which drives operating temperatures 20-30K above ambient. Spectrally-selective sub-bandgap reflection can reduce parasitic absorption, thereby improving module efficiency and power output. Here, we investigate the performance of 1-D spectrally-selective mirrors in monofacial Al BSF and PERC modules, and bifacial PERC modules. In monofacial modules, these mirrors offer >1.2% increase in energy yield compared to single-layer anti-reflection coatings, while cooling by over 1K on average. Mirrors reduced bifacial module parasitic absorption by up to 34 W/m2 out of 1240 W/m2 incident.

KW - bifacial

KW - parasitic absorption

KW - ray-tracing

KW - spectrally-selective reflection

KW - thermal management

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U2 - 10.1109/PVSC45281.2020.9300678

DO - 10.1109/PVSC45281.2020.9300678

M3 - Paper

AN - SCOPUS:85099599812

SP - 1388

EP - 1390

T2 - 47th IEEE Photovoltaic Specialists Conference, PVSC 2020

Y2 - 15 June 2020 through 21 August 2020

ER -

Modeling Spectrally-Selective Reflection for Thermal Management in Monofacial and Bifacial Modules

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

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