Degradation and failure modes of 26-year-old 200 kW power plant in a hot-dry desert climate

K. Olakonu, J. Belmont, S. Tatapudi, J. Kuitche, G. Tamizhmani

Research output: Chapter in Book/Report/Conference proceedingConference contribution

9 Scopus citations

Abstract

The primary focus of this paper is the reliability / failure evaluation of a 26-year-old photovoltaic (PV) monocrystalline silicon (c-Si) system located in Phoenix, Arizona (a hot-dry desert condition). This 4000-frameless-module bipolar system was originally installed in August 1985 with a rated capacity of 175 kW (17° fixed south tilt). This paper presents only the degradation and failure modes, and the degradation rate and its determination of this power plant is presented in another/twin paper of this conference. The results obtained from the extensive visual inspections and other non-intrusive tests made on the entire plant were used to determine the degradation and wear-out failure modes. The encapsualnt browning, cell gridline blossoming, cell-ribbon solder bond degradation, ribbon/metal-strip (copper) attachment degradation/break outside the modules, cell cracks and backsheet delamination have been determined to be the degradation and/or wear-out failure modes of these 26 years old modules in this specific hot-dry desert climate.

Original languageEnglish (US)
Title of host publication2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3207-3210
Number of pages4
ISBN (Electronic)9781479943982
DOIs
StatePublished - Oct 15 2014
Event40th IEEE Photovoltaic Specialist Conference, PVSC 2014 - Denver, United States
Duration: Jun 8 2014Jun 13 2014

Publication series

Name2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014

Other

Other40th IEEE Photovoltaic Specialist Conference, PVSC 2014
CountryUnited States
CityDenver
Period6/8/146/13/14

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials

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    Olakonu, K., Belmont, J., Tatapudi, S., Kuitche, J., & Tamizhmani, G. (2014). Degradation and failure modes of 26-year-old 200 kW power plant in a hot-dry desert climate. In 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014 (pp. 3207-3210). [6925618] (2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2014.6925618