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TPedge: Qualification of a gas-filled, encapsulation-free glass-glass photovoltaic module

: Mittag, M.; Haedrich, I.; Neff, T.; Hoffmann, S.; Eitner, U.; Wirth, H.

Fulltext urn:nbn:de:0011-n-3791229 (497 KByte PDF)
MD5 Fingerprint: e519cf6f8cc3b81c091dc3710fa30579
Created on: 5.3.2016

European Commission:
31st European Photovoltaic Solar Energy Conference and Exhibition, EU PVSEC 2015 : 14 to 18 September 2015, Hamburg, Germany
Hamburg, 2015
ISBN: 3-936338-39-6
European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC) <31, 2015, Hamburg>
Conference Paper, Electronic Publication
Fraunhofer ISE ()
Photovoltaische Module; Systeme und Zuverlässigkeit; Photovoltaische Module und Kraftwerke; Modultechnologie; module; photovoltaic; manufacturing; durability; reliability

With TPedge we present an advanced frameless, polymer free encapsulation concept for silicon solar cells which addresses several disadvantages and significant cost factors related to conventional solar modules. "TPedge" represents a gas-filled, edge sealed, glass-glass module without polymeric encapsulation foils that requires less module production time. The cost calculation indicates 15.3% lower module material costs for "TPedge" production compared to the standard module production due to savings for encapsulation foils and frame. The results from successful and extended module testing such as 400x thermal cycling (PSTC = 0%), 2000 hours damp-heat (PSTC = -1.4%) or 5400 Pa (PSTC = -0.9%) mechanical load testing show that critical IEC tests are passed. Additional results show PID stability, hot-spot stability (PSTC = -0.6%) and successful hail impact testing (PSTC = - 0.5%). We consider the TPedge-concept to be ready for IEC certification.