Compendium of photovoltaic degradation rates
Abstract
Abstract Published data on photovoltaic (PV) degradation measurements were aggregated and re‐examined. The subject has seen an increased interest in recent years resulting in more than 11 000 degradation rates in almost 200 studies from 40 different countries. As studies have grown in number and size, we found an impact from sampling bias attributable to size and accuracy. Because of the correlational nature of this study we examined the data in several ways to minimize this bias. We found median degradation for x‐Si technologies in the 0.5–0.6%/year range with the mean in the 0.8–0.9%/year range. Hetero‐interface technology (HIT) and microcrystalline silicon (µc‐Si) technologies, although not as plentiful, exhibit degradation around 1%/year and resemble thin‐film products more closely than x‐Si. Several studies showing low degradation for copper indium gallium selenide (CIGS) have emerged. Higher degradation for cadmium telluride (CdTe) has been reported, but these findings could reflect a convolution of less accurate studies and longer stabilization periods for some products. Significant deviations for beginning‐of‐life measurements with respect to nameplate rating have been documented over the last 35 years. Therefore, degradation rates that use nameplate rating as reference may be significantly impacted. Studies that used nameplate rating as reference but used solar simulators showedmore »
- Authors:
-
- National Renewable Energy Laboratory (NREL) 15013 Denver West Parkway Golden CO 80401 USA
- Colorado School of Mines 1500 Illinois Street Golden CO 8040 USA
- DNV GL 2420 Camino Ramon, Suite 300 San Ramon CA 95483 USA
- Publication Date:
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1400540
- Grant/Contract Number:
- DE‐AC36‐08‐GO28308
- Resource Type:
- Publisher's Accepted Manuscript
- Journal Name:
- Progress in Photovoltaics
- Additional Journal Information:
- Journal Name: Progress in Photovoltaics Journal Volume: 24 Journal Issue: 7; Journal ID: ISSN 1062-7995
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- United Kingdom
- Language:
- English
Citation Formats
Jordan, Dirk C., Kurtz, Sarah R., VanSant, Kaitlyn, and Newmiller, Jeff. Compendium of photovoltaic degradation rates. United Kingdom: N. p., 2016.
Web. doi:10.1002/pip.2744.
Jordan, Dirk C., Kurtz, Sarah R., VanSant, Kaitlyn, & Newmiller, Jeff. Compendium of photovoltaic degradation rates. United Kingdom. https://doi.org/10.1002/pip.2744
Jordan, Dirk C., Kurtz, Sarah R., VanSant, Kaitlyn, and Newmiller, Jeff. Sun .
"Compendium of photovoltaic degradation rates". United Kingdom. https://doi.org/10.1002/pip.2744.
@article{osti_1400540,
title = {Compendium of photovoltaic degradation rates},
author = {Jordan, Dirk C. and Kurtz, Sarah R. and VanSant, Kaitlyn and Newmiller, Jeff},
abstractNote = {Abstract Published data on photovoltaic (PV) degradation measurements were aggregated and re‐examined. The subject has seen an increased interest in recent years resulting in more than 11 000 degradation rates in almost 200 studies from 40 different countries. As studies have grown in number and size, we found an impact from sampling bias attributable to size and accuracy. Because of the correlational nature of this study we examined the data in several ways to minimize this bias. We found median degradation for x‐Si technologies in the 0.5–0.6%/year range with the mean in the 0.8–0.9%/year range. Hetero‐interface technology (HIT) and microcrystalline silicon (µc‐Si) technologies, although not as plentiful, exhibit degradation around 1%/year and resemble thin‐film products more closely than x‐Si. Several studies showing low degradation for copper indium gallium selenide (CIGS) have emerged. Higher degradation for cadmium telluride (CdTe) has been reported, but these findings could reflect a convolution of less accurate studies and longer stabilization periods for some products. Significant deviations for beginning‐of‐life measurements with respect to nameplate rating have been documented over the last 35 years. Therefore, degradation rates that use nameplate rating as reference may be significantly impacted. Studies that used nameplate rating as reference but used solar simulators showed less variation than similar studies using outdoor measurements, even when accounting for different climates. This could be associated with confounding effects of measurement uncertainty and soiling that take place outdoors. Hotter climates and mounting configurations that lead to sustained higher temperatures may lead to higher degradation in some, but not all, products. Wear‐out non‐linearities for the worst performing modules have been documented in a few select studies that took multiple measurements of an ensemble of modules during the lifetime of the system. However, the majority of these modules exhibit a fairly linear decline. Modeling these non‐linearities, whether they occur at the beginning‐of‐life or end‐of‐life in the PV life cycle, has an important impact on the levelized cost of energy. Copyright © 2016 John Wiley & Sons, Ltd.},
doi = {10.1002/pip.2744},
journal = {Progress in Photovoltaics},
number = 7,
volume = 24,
place = {United Kingdom},
year = {Sun Feb 07 00:00:00 EST 2016},
month = {Sun Feb 07 00:00:00 EST 2016}
}
https://doi.org/10.1002/pip.2744
Web of Science
Works referenced in this record:
Uncertainty in PV Module Measurement---Part II: Verification of Rated Power and Stability Problems
journal, May 2014
- Dirnberger, Daniela
- IEEE Journal of Photovoltaics, Vol. 4, Issue 3
Novel method for the improvement in the evaluation of outdoor performance loss rate in different PV technologies and comparison with two other methods
journal, July 2015
- Belluardo, Giorgio; Ingenhoven, Philip; Sparber, Wolfram
- Solar Energy, Vol. 117
Performance characterization of cadmium telluride modules validated by utility-scale and test systems
conference, June 2014
- Ngan, Lauren; Strevel, Nicholas; Passow, Kendra
- 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC), 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
Modelling inaccuracies of PV energy yield simulations
conference, May 2008
- Ransome, Steve
- 2008 33rd IEEE Photovolatic Specialists Conference (PVSC)
Failure and degradation modes and rates of PV modules in a hot-dry climate: Results after 16 years of field exposure
conference, June 2014
- Yedidi, K.; Tatapudi, S.; Mallineni, J.
- 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC), 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
Performance and Aging of a 20-Year-Old Silicon PV System
journal, May 2015
- Jordan, Dirk C.; Sekulic, B.; Marion, B.
- IEEE Journal of Photovoltaics, Vol. 5, Issue 3
Performance degradation in field-aged crystalline silicon PV modules in different indian climatic conditions
conference, June 2014
- Dubey, Rajiv; Chattopadhyay, Shashwata; Kuthanazhi, Vivek
- 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC), 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
Photovoltaic Degradation Rates-an Analytical Review: Photovoltaic degradation rates
journal, October 2011
- Jordan, D. C.; Kurtz, S. R.
- Progress in Photovoltaics: Research and Applications, Vol. 21, Issue 1
Analysis of degradation mechanisms of crystalline silicon PV modules after 12 years of operation in Southern Europe
journal, January 2011
- Sánchez-Friera, Paula; Piliougine, Michel; Peláez, Javier
- Progress in Photovoltaics: Research and Applications, Vol. 19, Issue 6
STC power for 15 MW of PV comparing nameplate, initial power and power after 4 years: STC power for 15 MW of PV
journal, July 2012
- García, Miguel; Marroyo, Luis; Lorenzo, Eduardo
- Progress in Photovoltaics: Research and Applications, Vol. 22, Issue 2
Long-term performance and reliability assessment of 8 PV arrays at Sandia National Laboratories
conference, June 2009
- Granata, J. E.; Boyson, W. E.; Kratochvil, J. A.
- 2009 34th IEEE Photovoltaic Specialists Conference (PVSC)
Performance trends in grid-connected photovoltaic systems for public and industrial use in Japan
journal, August 2010
- Oozeki, Takashi; Yamada, Takao; Otani, Kenji
- Progress in Photovoltaics: Research and Applications, Vol. 18, Issue 8
Comparison of PV module performance before and after 11-years of field exposure
conference, January 2002
- Reis, A. M.; Coleman, N. T.; Marshall, M. W.
- Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference 2002, Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002.
Performance Degradation of Various PV Module Technologies in Tropical Singapore
journal, September 2014
- Ye, Jia Ying; Reindl, Thomas; Aberle, Armin G.
- IEEE Journal of Photovoltaics, Vol. 4, Issue 5
PV module energy rating: opportunities and limitations: PV module energy rating: opportunities and limitations
journal, May 2015
- Dirnberger, Daniela; Müller, Björn; Reise, Christian
- Progress in Photovoltaics: Research and Applications, Vol. 23, Issue 12
PVLife: An integrated model for predicting PV performance degradation over 25+ years
conference, June 2012
- Mikofski, Mark A.; Kavulak, David F. J.; Okawa, David
- 2012 IEEE 38th Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE Photovoltaic Specialists Conference
Optically induced conductivity changes in discharge‐produced hydrogenated amorphous silicon
journal, June 1980
- Staebler, D. L.; Wronski, C. R.
- Journal of Applied Physics, Vol. 51, Issue 6
Degradation analysis of 1900 PV modules in a hot-dry climate: Results after 12 to 18 years of field exposure
conference, June 2013
- Singh, Jaspreet; Belmont, Jonathan; TamizhMani, GovindaSamy
- 2013 IEEE 39th Photovoltaic Specialists Conference (PVSC)
Safety and performance analysis of a commercial photovoltaic installation
conference, September 2013
- Hamzavy, Babak T.; Bradley, Alexander Z.
- SPIE Solar Energy + Technology, SPIE Proceedings
Photovoltaic module reliability model based on field degradation studies
journal, August 2008
- Vázquez, Manuel; Rey‐Stolle, Ignacio
- Progress in Photovoltaics: Research and Applications, Vol. 16, Issue 5
Practical Experience of Operational Diagnostics and Defectoscopy on Photovoltaic Installations in the Czech Republic
journal, October 2015
- Mastny, Petr; Moravek, Jan; Drapela, Jiri
- Energies, Vol. 8, Issue 10