Warranty Assessment of Photovoltaic Modules based on a Degradation Probabilistic Model

Prieto Castrillo, Francisco and Núñez Mendoza, Neftalí and Vázquez López, Manuel (2020). Warranty Assessment of Photovoltaic Modules based on a Degradation Probabilistic Model. "Progress in Photovoltaics", v. 28 (n. 12); pp. 1308-1321. ISSN 1099-159X. https://doi.org/10.1002/pip.3328.

Description

Title: Warranty Assessment of Photovoltaic Modules based on a Degradation Probabilistic Model
Author/s:
  • Prieto Castrillo, Francisco
  • Núñez Mendoza, Neftalí
  • Vázquez López, Manuel
Item Type: Article
Título de Revista/Publicación: Progress in Photovoltaics
Date: December 2020
ISSN: 1099-159X
Volume: 28
Subjects:
Freetext Keywords: reliability, warranty, PV modules
Faculty: E.T.S.I. y Sistemas de Telecomunicación (UPM)
Department: Electrónica Física, Ingeniería Eléctrica y Física Aplicada
UPM's Research Group: Semiconductores III-V
Creative Commons Licenses: None

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Abstract

Evaluating the probability of failure of a product during the warranty is key to estimating the cost of its entire life cycle. PV modules are the most reliable elements of a PV system and their high reliability translates into long warranty periods (typically 25 to 30 years). The number of photovoltaic modules that fail during warranty and when they failed is an important issue to estimate Life Cycle Cost of photovoltaic modules. In this paper we pro-pose a coupled degradation-warranty model for PV modules. The proposed model is aimed to assess the probability of failure over time covered by warranty based on degradation data. This allows us to estimate the time of PV modules failure covered by the warranty. Alt-hough the warranty model has been applied to some forms of degradation and sales func-tions, our method can be applied to any real application. This allows the key parameters of the warranty to be obtained in a simple way. The required degradation parameters to fulfill warranty depends on the allowable ratio of warranted elements. However, as main conclu-sion of the influence of degradation rates on warranty is that it is not possible to fulfill 25 years of warranty if degradation rates are larger than 0,8%/year. The required degradation rates values, for 25 years of warranty, will be lower than 0,5%/year if the allowed warranted elements is in the range of 1%.

Funding Projects

TypeCodeAcronymLeaderTitle
Madrid Regional GovernmentMADRID-PV2(S2018/EMT-4308UnspecifiedUnspecifiedMaterials, devices and technologies for the development of the photovoltaic industry
Universidad Politécnica de MadridRP150910B12UnspecifiedUnspecifiedUnspecified

More information

Item ID: 66316
DC Identifier: http://oa.upm.es/66316/
OAI Identifier: oai:oa.upm.es:66316
DOI: 10.1002/pip.3328
Official URL: https://onlinelibrary.wiley.com/doi/10.1002/pip.3328
Deposited by: Dr Manuel Vazquez
Deposited on: 09 Mar 2021 07:04
Last Modified: 09 Mar 2021 07:04
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