Risk priority number for understanding the severity of photovoltaic failure modes and their impacts on performance degradation

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

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Detail(s)

Original languageEnglish
Article number100563
Journal / PublicationCase Studies in Thermal Engineering
Volume16
Online published13 Nov 2019
Publication statusPublished - Dec 2019

Abstract

The alleged reliability has led the longest warranty period for Photovoltaic (PV) modules up to 20–25 years; it becomes possible after understanding the failure mode and degradation analysis of PV module. Failure mode decreases the performance of the PV module throughout the long-term outdoor exposure. The main objective of the present study is to identify the failure mechanism and failure mode of solar PV modules and their impact on degradation in operating conditions. Assessment of previous studies on rate indicates the highest performance losses at initial stage of outdoor exposure and a degradation drop-off of 0.014% per year. In this context, risk priority number (RPN) analysis is carried out to identify the severity of the failure mode, which affect the system performance for c-Si technologies. However, hot spot and de-lamination are degradation modes related to safety issue with lower value of RPN <50.

Research Area(s)

  • Reliability, Degradation, PV failure mode, PV module defects, Risk priority number, Crystalline silicon

Citation Format(s)

Risk priority number for understanding the severity of photovoltaic failure modes and their impacts on performance degradation. / Rajput, Pramod; Malvoni, Maria; Kumar, Nallapaneni Manoj; Sastry, O.S.; Tiwari, G.N.

In: Case Studies in Thermal Engineering, Vol. 16, 100563, 12.2019.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review