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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/4496

    Título
    Real energy payback time and carbon footprint of a GCPVS
    Autor
    Simón Martín, Miguel deAutoridad UBU Orcid
    Diez Mediavilla, MontserratAutoridad UBU Orcid
    Alonso Tristán, CristinaAutoridad UBU Orcid
    Publicado en
    AIMS Energy. 2017, V. 5, n. 1, p. 77-95
    Editorial
    AIMS Press
    Fecha de publicación
    2017-01
    ISSN
    2333-8334
    Résumé
    Grid connected PV systems, or GCPVS, produce clean and renewable energy through the photovoltaic e ect in the operation stage of the power plant. However, this is the penultimate stage of the facilities before its dismantlement. Before starting generating electricity with zero CO2 emissions, a negative energy balance exists mainly because of the embodied energy costs of the PV components manufacturing, transport and late dismantlement. First, a review of existing studies about energy life cycle assessment (LCA) and Carbon Footprint of PV systems has been carried out in this paper. Then, a new method to evaluate the Real Energy Payback Time (REPBT), which includes power looses due to PV panels degradation is proposed and di erences with traditional Energy Payback Time are analysed. Finally, a typical PV grid connected plant (100 kW nominal power) located in Northern Spain is studied in these sustainability terms. This facility has been firstly completely modelled, including PV modules, inverters, structures and wiring. It has been also considerated the energy involved in the replacement of those components with shorter lifespan. The PV panels degradation has been analysed through the comparison of normalised flash test reports on a significant sample of the installed modules before and 5 years after installation. Results show that real PV degradation a ect significantly to the Energy Payback Time of the installation increasing slightly a 4:2% more the EPBT value for the case study. However, along a lifespan of 30 years, the GCPVS under analysis will return only 5:6 times the inverted energy on components manufacturing, transport and installation, rather than the expected 9:1 times with the classical estimation.
    Palabras clave
    Grid connected PV systems
    Real Energy Payback Time
    Life Cycle Assessment
    PV degradation
    Carbon Footprint
    clean energy
    Materia
    Electrotecnia
    Electrical engineering
    URI
    http://hdl.handle.net/10259/4496
    Versión del editor
    https://doi.org/10.3934/energy.2017.1.77
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    Attribution 4.0 International
    Documento(s) sujeto(s) a una licencia Creative Commons Attribution 4.0 International
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    Simón-Energy-2017.pdf
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