Abstract
Light-induced changes to the current-voltage characteristic of thin-film photovoltaic modules (i.e. light-soaking effects) frustrate the repeatable measurement of their operating power. We describe best practices for mitigating, or stabilizing, light-soaking effects for both CdTe and CIGS modules to enable robust, repeatable, and relevant power measurements. We motivate the practices by detailing how modules react to changes in different stabilization methods. We also describe and demonstrate a method for validating alternative stabilization procedures, such as those relying on forward bias in the dark. Reliable measurements of module power are critical for qualification testing, reliability testing, and power rating.
Original language | American English |
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Number of pages | 8 |
DOIs | |
State | Published - 2015 |
Event | Thin Films for Solar and Energy Technology VII - San Diego, United States Duration: 9 Aug 2015 → 10 Aug 2015 |
Conference
Conference | Thin Films for Solar and Energy Technology VII |
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Country/Territory | United States |
City | San Diego |
Period | 9/08/15 → 10/08/15 |
Bibliographical note
See NREL/CP-5J00-64769 for preprintNREL Publication Number
- NREL/CP-5J00-65697
Keywords
- Metastability
- Photovoltaic
- Solar
- Testing
- Thin-film
- Transient