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Title: Model Development of Degradation of PV Modules Backsheet with Locating Place of Module

Conference ·
DOI:https://doi.org/10.1117/12.2274209· OSTI ID:1416905
 [1];  [2];  [3];  [4];  [5];  [2];  [4];  [4];  [4];  [3];  [6];  [6];  [5];  [2];  [2]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
  2. Case Western Reserve University
  3. National Institute of Standards and Technology (NIST)
  4. Arkema
  5. Northeastern University
  6. Underwriters Laboratories

Performance of a photovoltaic (PV) module is related to the micro-environment around the module. The position of photovoltaic modules in an array row have a large effect on the yellowing and gloss of PV module backsheet exposed in Dfa climatic zone (Gaithersburg, MD) with a polyethylene naphthalate (PEN) outer layer. Stress/Response models of yellowing and gloss-losing as function of location parameters of module, including the shed, row, measurement position in a same module and the distance of module location to the row center, are under development. The module installation height had the greatest influence on degradation of PEN PV backsheet in the Dfa climatic zone. The module backsheets at the end of an array have higher degradation rate (edge effect). The edge effect decreases with increasing of module installation heights.

Research Organization:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Solar Energy Technologies Office (EE-4S), SunShot Initiative
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1416905
Report Number(s):
NREL/CP-5J00-68232
Resource Relation:
Conference: Presented at SPIE Optical Engineering + Applications 2017, 6-10 August 2017, San Diego, California
Country of Publication:
United States
Language:
English