2014 PV Performance Modeling Workshop: Results from Flash Testing at Multiple Irradiance and Temperatures across Five Photovoltaic Testing Labs: Junaid Fatehi, Yingli Green Energy Americas
2014 PV Performance Modeling Workshop: Results from Flash Testing at Multiple Irradiance and Temperatures across Five Photovoltaic Testing Labs: Junaid Fatehi, Yingli Green Energy Americas
Semelhante a 2014 PV Performance Modeling Workshop: Results from Flash Testing at Multiple Irradiance and Temperatures across Five Photovoltaic Testing Labs: Junaid Fatehi, Yingli Green Energy Americas
Semelhante a 2014 PV Performance Modeling Workshop: Results from Flash Testing at Multiple Irradiance and Temperatures across Five Photovoltaic Testing Labs: Junaid Fatehi, Yingli Green Energy Americas (20)
Russian Call Girl Hebbagodi ! 7001305949 ₹2999 Only and Free Hotel Delivery 2...
2014 PV Performance Modeling Workshop: Results from Flash Testing at Multiple Irradiance and Temperatures across Five Photovoltaic Testing Labs: Junaid Fatehi, Yingli Green Energy Americas
1. RESULTS FROM FLASH TESTING AT MULTIPLE IRRADIANCES AND
TEMPERATURES ACROSS FIVE PHOTOVOLTAIC TESTING LABS
3rd PV Performance Modeling Workshop
May 5, 2014, Santa Clara, CA
Junaid H. Fatehi1, Cherif Kedir2, Charles Tumengko3, Nick Riedel4, John L. R. Watts5
1Yingli Green Energy Americas, San Francisco, CA
2Renewable Energy Test Center, Fremont, CA
3Intertek Testing Services, Lake Forest, CA
4CFV Solar Test Laboratory, Albuquerque, NM
5PV Evolution Labs, Berkeley, CA
Published by Sandia National Laboratories with the permission of the authors.
2. Background
• For reliable system energy yield modeling, it is important to
characterize the dependence of PV module performance on
irradiance and operating temperature, for conversion into module
performance models used in energy simulation
• This study was coordinated by Yingli Green Energy Americas and it
investigates the contribution of data source in the measurement and
understanding of PV module behavior
• Three light-stabilized multicrystalline silicon PV modules from Yingli
Solar were sent to five testing labs for round robin characterization
3. Participating Labs
• CFV Solar Test Laboratory
– Albuquerque, NM
• Intertek Testing Services
– Lake Forest, CA
• Renewable Energy Test Center
– Fremont, CA
• PV Evolution Labs
– Berkeley, CA
• Yingli Americas PV Testing Lab
– South San Francisco, CA
All labs are assigned a random number for anonymous reporting.
4. Testing Scope
• Multiple Irradiance Testing
– Testing between 100 W/m2 and 1,000 W/m2
– Minimum testing interval of 100 W/m2
– Fixed testing temperature of 25 oC
• Temperature Coefficient Testing
– Testing between 25 oC and 65 oC
– Maximum testing interval of 5 oC
– Fixed testing irradiance of 1,000 W/m2
5. Testing Notes
• All five participating labs:
– Conducted electroluminescence imaging to
screen for transportation damage (none reported)
– Conducted temperature coefficient testing indoors
– Calibrated with a module tested at Fraunhofer
ISE and traceable to PTB
20. Conclusions
• Self-referencing irradiance results in smoother
efficiency curves and better relative efficiency
agreement between labs
• Three out of five labs have good agreement on
Voc temperature coefficients and moderate
agreement on Pmp temperature coefficients
21. Thank You
Contact Junaid H. Fatehi at juanid.fatehi@yingliamericas.com for questions and comments.
22. For Discussion
* Annual energy yield estimates were performed in PVsyst for a fixed system design and using .PAN files created from each participating lab’s measurement
data in accordance with “Systematic Approaches to Ensure Correct Representation of Measured Multi-Irradiance Module Performance in PV System Energy
Production Forecasting Software Programs”, presented at Sandia's 2013 PV Performance Modeling Workshop by Kenneth J. Sauer and Thomas Roessler.
Deviation in estimated annual energy yield from the mean for each location.*
-0.8%
-0.6%
-0.4%
-0.2%
0.0%
0.2%
0.4%
0.6%
Antofagasta, Chile Berlin, Germany Phoenix, USA Trivandrum, India
Lab 1
Lab 2
Lab 3
Lab 4
Lab 5