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Title:
 
Polyolefin Backsheet Protects Solar Modules for a Life Time
 
Author(s):
 
G. Stollwerck, W. Schoeppel, A. Graichen, C. Jaeger, M. Kollesch
 
Keywords:
 
Encapsulation, Module, Environmental, Weathering, Effect
 
Topic:
 
COMPONENTS FOR PV SYSTEMS
Subtopic: PV Modules
Event: 28th European Photovoltaic Solar Energy Conference and Exhibition
Session: 4CO.10.1
 
Pages:
 
2842 - 2845
ISBN: 3-936338-33-7
Paper DOI: 10.4229/28thEUPVSEC2013-4CO.10.1
 
Price:
 
 
0,00 EUR
 
Document(s): paper
 

Abstract/Summary:


The backsheet Scotchshield Film 800, based on cost effective polyolefins shows incredible weathering stability. Polyolefins are known to withstand harsh environmental conditions. This polyolefin is especially modified for long term durability. To perform a life time estimate, intensive and long-term weathering tests were performed. The polyolefin backsheet was tested under harsh temperature and UV conditions in the xenon weatherometer and QUV-A. In parallel, heat aging was done at temperatures of 110°C to 170°C. An Arrhenius extrapolation of the time to partial loss of property was done to estimate a service life time. The calculated lifetime of the polyolefin based backsheet in a standard solar module can be more than 50 years in Germany and Arizona.