Evaluation of 12-year-old PV power plant in hot-dry desert climate: Potential use of field failure metrics for financial risk calculation

J. Mallineni, B. Knisely, K. Yedidi, S. Tatapudi, J. Kuitche, G. Tamizhmani

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

14 Scopus citations

Abstract

This paper provides a metric definition for the safety failures, reliability failures and degradation loss for the PV modules. These metrics are then used in real power plant evaluations to calculate the distribution among these three metrics which in turn could objectively be used to perform financial risk calculations. The results obtained on 2352 and 1280 modules in two of the evaluated power plants, aged 12 and 4 years, in a hot-dry desert climate are analyzed using these defined metrics. The results indicate that the mean and median degradations, respectively, are 0.95 and 0.96 %/year for the 12-year old, and 0.96%/year and 1%/year for the 4-year old power plants. The distribution between safety failures, reliability failures and durability loss is determined to be 7%, 42% and 51%, respectively for the 12 year old power plant.

Original languageEnglish (US)
Title of host publication2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3366-3371
Number of pages6
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

Keywords

  • O&M
  • degradation rate
  • durability
  • hot dry desert
  • reliability metrics

ASJC Scopus subject areas

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

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    Mallineni, J., Knisely, B., Yedidi, K., Tatapudi, S., Kuitche, J., & Tamizhmani, G. (2014). Evaluation of 12-year-old PV power plant in hot-dry desert climate: Potential use of field failure metrics for financial risk calculation. In 2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014 (pp. 3366-3371). [6925656] (2014 IEEE 40th Photovoltaic Specialist Conference, PVSC 2014). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2014.6925656