Energy payback time of grid connected pv systems: comparison between tracking and fixed systems

Perpiñan Lamigueiro, Oscar and Lorenzo Pigueiras, Eduardo and Castro Gil, Manuel Alonso and Eyras Daguerre, Ramón (2009). Energy payback time of grid connected pv systems: comparison between tracking and fixed systems. "Progress in Photovoltaics", v. 17 (n. 2); pp. 137-147. https://doi.org/10.1002/pip.871.

Description

Title: Energy payback time of grid connected pv systems: comparison between tracking and fixed systems
Author/s:
  • Perpiñan Lamigueiro, Oscar
  • Lorenzo Pigueiras, Eduardo
  • Castro Gil, Manuel Alonso
  • Eyras Daguerre, Ramón
Item Type: Article
Título de Revista/Publicación: Progress in Photovoltaics
Date: 2009
Volume: 17
Subjects:
Freetext Keywords: Grid-connected PV systems; Life Cycle Assesment; Energy Payback Time; PV Tracking systems.
Faculty: E.U.I.T. Industrial (UPM)
Department: Ingeniería Eléctrica [hasta 2014]
Creative Commons Licenses: Recognition - Share

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Abstract

A review of existing studies about LCA of PV systems has been carried out. The data from this review have been completed with our own figures in order to calculate the Energy Payback Time of double and horizontal axis tracking and fixed systems. The results of this metric span from 2 to 5 years for the latitude and global irradiation ranges of the geographical area comprised between −10◦ to 10◦ of longitude, and 30◦ to 45◦ of latitude. With the caution due to the uncertainty of the sources of information, these results mean that a GCPVS is able to produce back the energy required for its existence from 6 to 15 times during a life cycle of 30 years. When comparing tracking and fixed systems, the great importance of the PV generator makes advisable to dedicate more energy to some components of the system in order to increase the productivity and to obtain a higher performance of the component with the highest energy requirement. Both double axis and horizontal axis trackers follow this way, requiring more energy in metallic structure, foundations and wiring, but this higher contribution is widely compensated by the improved productivity of the system.

More information

Item ID: 20818
DC Identifier: http://oa.upm.es/20818/
OAI Identifier: oai:oa.upm.es:20818
DOI: 10.1002/pip.871
Official URL: http://onlinelibrary.wiley.com/doi/10.1002/pip.871/abstract
Deposited by: Oscar Perpiñán Lamigueiro
Deposited on: 30 Sep 2013 07:29
Last Modified: 22 Sep 2014 11:21
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