Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Energy Payback Time of Grid Connected PV Systems: Comparison Between Tracking and Fixed Systems
Year:2009
Research Areas
  • Electronic circuits,
  • Electronic devices
Information
Abstract
A review of existing studies about life cycle assessment (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 (EPBT) 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 grid connected PV system (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.
International
Si
JCR
Si
Title
PROGRESS IN PHOTOVOLTAICS
ISBN
1062-7995
Impact factor JCR
2,652
Impact info
Volume
17
Journal number
0
From page
137
To page
147
Month
MARZO
Ranking
Participants
  • Autor: M.A. Castro (UNED.)
  • Autor: O. Perpiñan (Isofotón, S.A.)
  • Autor: R. Eyras (Ziltis Ltd.)
  • Autor: Antonio-P.Eduardo Lorenzo Pigueiras (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: SISTEMAS FOTOVOLTÁICOS
  • Centro o Instituto I+D+i: Instituto de Energía Solar
  • Departamento: Electrónica Física
S2i 2019 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
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