GaAs/silicon PVMirror tandem photovoltaic mini-module with 29.6% efficiency with respect to the outdoor global irradiance

Zhengshan Yu, Kathryn C. Fisher, Xiaodong Meng, Justin J. Hyatt, Roger P. Angel, Zachary Holman

Research output: Contribution to journalArticle

Abstract

Balance-of-system costs now dominate the installed cost of photovoltaic systems, causing the annually averaged module efficiency to become a primary system cost driver. The resulting continued push towards higher module efficiencies, coupled with the dominance of single-axis tracking in the utility-scale PV market, may create an opportunity for a low-concentration tandem module technology. Here, we demonstrate such a tandem, using the “PVMirror” concept, on the mini-module scale. The tandem couples a (concentrating) silicon PVMirror having an aperture area of 156.25 cm2 with a gallium arsenide receiver to achieve 29.6% efficiency with respect to the outdoor global irradiance. Unlike most concentrating technologies, the silicon PVMirror collects some of the diffuse light, but the tandem would nevertheless achieve 31% efficiency in the absence of diffuse light, as in a laboratory measurement. The same tandem technology can be implemented with a wide-bandgap thin-film PVMirror and silicon receiver—a potentially cost-competitive combination—when efficient wide-bandgap cells have been developed.

Original languageEnglish (US)
JournalProgress in Photovoltaics: Research and Applications
DOIs
StatePublished - Jan 1 2019

Fingerprint

Silicon
irradiance
modules
costs
concentrating
silicon
Costs
Energy gap
Gallium arsenide
gallium
low concentrations
receivers
apertures
Thin films
gallium arsenide
thin films
cells

Keywords

  • diffuse light
  • gallium arsenide
  • low concentration
  • photovoltaic
  • silicon tandem
  • tandem

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

GaAs/silicon PVMirror tandem photovoltaic mini-module with 29.6% efficiency with respect to the outdoor global irradiance. / Yu, Zhengshan; Fisher, Kathryn C.; Meng, Xiaodong; Hyatt, Justin J.; Angel, Roger P.; Holman, Zachary.

In: Progress in Photovoltaics: Research and Applications, 01.01.2019.

Research output: Contribution to journalArticle

@article{f8779afb94e1484e9a66d3b8a0bcd957,
title = "GaAs/silicon PVMirror tandem photovoltaic mini-module with 29.6{\%} efficiency with respect to the outdoor global irradiance",
abstract = "Balance-of-system costs now dominate the installed cost of photovoltaic systems, causing the annually averaged module efficiency to become a primary system cost driver. The resulting continued push towards higher module efficiencies, coupled with the dominance of single-axis tracking in the utility-scale PV market, may create an opportunity for a low-concentration tandem module technology. Here, we demonstrate such a tandem, using the “PVMirror” concept, on the mini-module scale. The tandem couples a (concentrating) silicon PVMirror having an aperture area of 156.25 cm2 with a gallium arsenide receiver to achieve 29.6{\%} efficiency with respect to the outdoor global irradiance. Unlike most concentrating technologies, the silicon PVMirror collects some of the diffuse light, but the tandem would nevertheless achieve 31{\%} efficiency in the absence of diffuse light, as in a laboratory measurement. The same tandem technology can be implemented with a wide-bandgap thin-film PVMirror and silicon receiver—a potentially cost-competitive combination—when efficient wide-bandgap cells have been developed.",
keywords = "diffuse light, gallium arsenide, low concentration, photovoltaic, silicon tandem, tandem",
author = "Zhengshan Yu and Fisher, {Kathryn C.} and Xiaodong Meng and Hyatt, {Justin J.} and Angel, {Roger P.} and Zachary Holman",
year = "2019",
month = "1",
day = "1",
doi = "10.1002/pip.3095",
language = "English (US)",
journal = "Progress in Photovoltaics: Research and Applications",
issn = "1062-7995",
publisher = "John Wiley and Sons Ltd",

}

TY - JOUR

T1 - GaAs/silicon PVMirror tandem photovoltaic mini-module with 29.6% efficiency with respect to the outdoor global irradiance

AU - Yu, Zhengshan

AU - Fisher, Kathryn C.

AU - Meng, Xiaodong

AU - Hyatt, Justin J.

AU - Angel, Roger P.

AU - Holman, Zachary

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Balance-of-system costs now dominate the installed cost of photovoltaic systems, causing the annually averaged module efficiency to become a primary system cost driver. The resulting continued push towards higher module efficiencies, coupled with the dominance of single-axis tracking in the utility-scale PV market, may create an opportunity for a low-concentration tandem module technology. Here, we demonstrate such a tandem, using the “PVMirror” concept, on the mini-module scale. The tandem couples a (concentrating) silicon PVMirror having an aperture area of 156.25 cm2 with a gallium arsenide receiver to achieve 29.6% efficiency with respect to the outdoor global irradiance. Unlike most concentrating technologies, the silicon PVMirror collects some of the diffuse light, but the tandem would nevertheless achieve 31% efficiency in the absence of diffuse light, as in a laboratory measurement. The same tandem technology can be implemented with a wide-bandgap thin-film PVMirror and silicon receiver—a potentially cost-competitive combination—when efficient wide-bandgap cells have been developed.

AB - Balance-of-system costs now dominate the installed cost of photovoltaic systems, causing the annually averaged module efficiency to become a primary system cost driver. The resulting continued push towards higher module efficiencies, coupled with the dominance of single-axis tracking in the utility-scale PV market, may create an opportunity for a low-concentration tandem module technology. Here, we demonstrate such a tandem, using the “PVMirror” concept, on the mini-module scale. The tandem couples a (concentrating) silicon PVMirror having an aperture area of 156.25 cm2 with a gallium arsenide receiver to achieve 29.6% efficiency with respect to the outdoor global irradiance. Unlike most concentrating technologies, the silicon PVMirror collects some of the diffuse light, but the tandem would nevertheless achieve 31% efficiency in the absence of diffuse light, as in a laboratory measurement. The same tandem technology can be implemented with a wide-bandgap thin-film PVMirror and silicon receiver—a potentially cost-competitive combination—when efficient wide-bandgap cells have been developed.

KW - diffuse light

KW - gallium arsenide

KW - low concentration

KW - photovoltaic

KW - silicon tandem

KW - tandem

UR - http://www.scopus.com/inward/record.url?scp=85060960028&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85060960028&partnerID=8YFLogxK

U2 - 10.1002/pip.3095

DO - 10.1002/pip.3095

M3 - Article

AN - SCOPUS:85060960028

JO - Progress in Photovoltaics: Research and Applications

JF - Progress in Photovoltaics: Research and Applications

SN - 1062-7995

ER -