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Photovoltaic fleet degradation insights

Journal Article · · Progress in Photovoltaics
DOI:https://doi.org/10.1002/pip.3566· OSTI ID:1864619

Abstract

In the PV Fleet Performance Data Initiative, high‐frequency data from commercial and utility‐scale photovoltaic (PV) systems have been collected to examine performance loss rates (PLRs) at a fleet scale. To date, performance data from more than 7.2‐gigawatt (GW) capacity, 1700 sites and 19,000 inverters—approximately equivalent to 6% to 7% of the entire US PV market—have been collected. An overall PLR of −0.75%/year was found, which is in line with historical and recent findings. Tracked silicon (Si) and cadmium telluride (CdTe) performed comparably with all fixed‐tilt systems. Higher PLRs were found for hotter temperature zones; cooler climates exhibit a median −0.48%/year loss, which increases to −0.88%/year in hotter climates. High‐efficiency module technologies showed median PLRs in line with conventional Si technologies but demonstrated markedly different PLR behavior when filtered only for low‐light conditions <600 W/m 2 . Causes for this technology‐dependent behavior are under investigation.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC36-08GO28308
OSTI ID:
1864619
Alternate ID(s):
OSTI ID: 1865882
OSTI ID: 1996459
Journal Information:
Progress in Photovoltaics, Journal Name: Progress in Photovoltaics Journal Issue: 10 Vol. 30; ISSN 1062-7995
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United Kingdom
Language:
English

References (26)

Photovoltaic Degradation Rates-an Analytical Review: Photovoltaic degradation rates journal October 2011
Compendium of photovoltaic degradation rates: Photovoltaic degradation rates journal February 2016
PV field reliability status—Analysis of 100 000 solar systems journal March 2020
Data processing and quality verification for improved photovoltaic performance and reliability analytics journal October 2020
Unsupervised azimuth estimation of solar arrays in low-resolution satellite imagery through semantic segmentation and Hough transform journal September 2021
Climate specific thermomechanical fatigue of flat plate photovoltaic module solder joints journal July 2016
The National Solar Radiation Data Base (NSRDB) journal June 2018
Evaluation of clear-sky and satellite-derived irradiance data for determining the degradation of photovoltaic system performance journal July 2021
Degradation of multicrystalline silicon solar cells and modules after illumination at elevated temperature journal November 2015
The Passivated Emitter and Rear Cell (PERC): From conception to mass production journal December 2015
System-level performance and degradation of 21 GW DC of utility-scale PV plants in the United States journal July 2020
Robust PV Degradation Methodology and Application journal March 2018
Fleet-Scale Energy-Yield Degradation Analysis Applied to Hundreds of Residential and Nonresidential Photovoltaic Systems journal March 2019
Combined Estimation of Degradation and Soiling Losses in Photovoltaic Systems journal November 2020
Performance Analysis and Degradation of a Large Fleet of PV Systems journal September 2021
A Method for Estimating Time-Series PV Production Loss From Solar Tracking Failures journal January 2022
Analytical improvements in PV degradation rate determination conference June 2010
Validation of the PVLife model using 3 million module-years of live site data conference June 2013
Degradation analysis of 1900 PV modules in a hot-dry climate: Results after 12 to 18 years of field exposure conference June 2013
Performance degradation in field-aged crystalline silicon PV modules in different indian climatic conditions
  • Dubey, Rajiv; Chattopadhyay, Shashwata; Kuthanazhi, Vivek
  • 2014 IEEE 40th Photovoltaic Specialists Conference (PVSC), 2014 IEEE 40th Photovoltaic Specialist Conference (PVSC) https://doi.org/10.1109/PVSC.2014.6925612
conference June 2014
Determining the Power Rate of Change of 353 Plant Inverters Time-Series Data Across Multiple Climate Zones, Using a Month-By-Month Data Science Analysis conference June 2017
Photovoltaic Degradation Climate Zones conference June 2019
Investigation of More Than 100,000 Months of Inverter Power Conversion Efficiency Data Using the Power Factors Database conference June 2021
Performance Comparison of Clipping Detection Techniques in AC Power Time Series conference June 2021
Performance Index Assessment for the PV Fleet Performance Data Initiative conference June 2021
The Value of Stability in Photovoltaics journal January 2021

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