A Practical Irradiance Model for Bifacial PV Modules: Preprint

William Marion; Christopher Deline; Amir Asgharzadeh; Fatima Toor; Daniel Riley; Joshua Stein; Clifford Hansen

A Practical Irradiance Model for Bifacial PV Modules: Preprint

William Marion, Christopher Deline, Amir Asgharzadeh, Fatima Toor, Daniel Riley, Joshua Stein, Clifford Hansen

Materials Science

Research output: Contribution to conference › Paper

Abstract

A model, suitable for a row or multiple rows of photovoltaic (PV) modules, is presented for estimating the backside irradiance for bifacial PV modules. The model, which includes the effects of shading by the PV rows, is based on the use of configuration factors (CFs) to determine the fraction of a source of irradiance that is received by the backside of the PV module. Backside irradiances are modeled along the sloped height of the PV module, but assumed not to vary along the length of the PV row. The backside irradiances are corrected for angle-of-incidence losses and may be added to the front side irradiance to determine the total irradiance resource for the PV cell. Model results are compared with the measured backside irradiances for NREL and Sandia PV systems, and with results when using the RADIANCE ray tracing program.

Original language	American English
Number of pages	8
State	Published - 2017
Event	2017 IEEE 44th Photovoltaic Specialists Conference (PVSC) - Washington, D.C. Duration: 25 Jun 2017 → 30 Jun 2017

Conference

Conference	2017 IEEE 44th Photovoltaic Specialists Conference (PVSC)
City	Washington, D.C.
Period	25/06/17 → 30/06/17

Bibliographical note

See NREL/CP-5K00-73962 for paper as published in IEEE proceedings

NREL Publication Number

NREL/CP-5J00-67847

Keywords

bifacial PV module
configuration factor
irradiance
model
performance

UN SDGs

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

Access to Document

https://www.nrel.gov/docs/fy17osti/67847.pdf

Cite this

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title = "A Practical Irradiance Model for Bifacial PV Modules: Preprint",

abstract = "A model, suitable for a row or multiple rows of photovoltaic (PV) modules, is presented for estimating the backside irradiance for bifacial PV modules. The model, which includes the effects of shading by the PV rows, is based on the use of configuration factors (CFs) to determine the fraction of a source of irradiance that is received by the backside of the PV module. Backside irradiances are modeled along the sloped height of the PV module, but assumed not to vary along the length of the PV row. The backside irradiances are corrected for angle-of-incidence losses and may be added to the front side irradiance to determine the total irradiance resource for the PV cell. Model results are compared with the measured backside irradiances for NREL and Sandia PV systems, and with results when using the RADIANCE ray tracing program.",

keywords = "bifacial PV module, configuration factor, irradiance, model, performance",

author = "William Marion and Christopher Deline and Amir Asgharzadeh and Fatima Toor and Daniel Riley and Joshua Stein and Clifford Hansen",

note = "See NREL/CP-5K00-73962 for paper as published in IEEE proceedings; 2017 IEEE 44th Photovoltaic Specialists Conference (PVSC) ; Conference date: 25-06-2017 Through 30-06-2017",

year = "2017",

language = "American English",

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TY - CONF

T1 - A Practical Irradiance Model for Bifacial PV Modules: Preprint

AU - Marion, William

AU - Deline, Christopher

AU - Asgharzadeh, Amir

AU - Toor, Fatima

AU - Riley, Daniel

AU - Stein, Joshua

AU - Hansen, Clifford

N1 - See NREL/CP-5K00-73962 for paper as published in IEEE proceedings

PY - 2017

Y1 - 2017

N2 - A model, suitable for a row or multiple rows of photovoltaic (PV) modules, is presented for estimating the backside irradiance for bifacial PV modules. The model, which includes the effects of shading by the PV rows, is based on the use of configuration factors (CFs) to determine the fraction of a source of irradiance that is received by the backside of the PV module. Backside irradiances are modeled along the sloped height of the PV module, but assumed not to vary along the length of the PV row. The backside irradiances are corrected for angle-of-incidence losses and may be added to the front side irradiance to determine the total irradiance resource for the PV cell. Model results are compared with the measured backside irradiances for NREL and Sandia PV systems, and with results when using the RADIANCE ray tracing program.

AB - A model, suitable for a row or multiple rows of photovoltaic (PV) modules, is presented for estimating the backside irradiance for bifacial PV modules. The model, which includes the effects of shading by the PV rows, is based on the use of configuration factors (CFs) to determine the fraction of a source of irradiance that is received by the backside of the PV module. Backside irradiances are modeled along the sloped height of the PV module, but assumed not to vary along the length of the PV row. The backside irradiances are corrected for angle-of-incidence losses and may be added to the front side irradiance to determine the total irradiance resource for the PV cell. Model results are compared with the measured backside irradiances for NREL and Sandia PV systems, and with results when using the RADIANCE ray tracing program.

KW - bifacial PV module

KW - configuration factor

KW - irradiance

KW - model

KW - performance

M3 - Paper

T2 - 2017 IEEE 44th Photovoltaic Specialists Conference (PVSC)

Y2 - 25 June 2017 through 30 June 2017

ER -

A Practical Irradiance Model for Bifacial PV Modules: Preprint

Abstract

Conference

Bibliographical note

NREL Publication Number

Keywords

UN SDGs

Access to Document

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Cite this