5CV.2.34 Electroluminescence Inspection: Revisiting the Hidden Side of a PV Module
Wednesday, 8th September 2021
13:30 - 15:00
R.J. Gómez, E. Jiménez, D. Sanz, C. Sandoval, J. Cuaresma, J.C. Vázquez, J. Rodríguez, A. Cendoya, S. Suarez, J. Martin, C. Arranz, G.A. Navas, J.M. Álvarez, F.R. Fernández, S. Rodríguez-Conde, I. Fernandez, V. Parra
5. 3 Operation, Performance and Maintenance of PV Systems
Summary / Abstract:
Nowadays, in the era of new PV cell and module designs, with the trend to build increasingly larger and faster PV projects worldwide, the EL technique has it all to live a second youth as a key tool to determine the quality condition of a PV module - and thus a PV asset - in a massive, intuitive, costeffective and non-invasive way. Paradoxically, despite the unquestionable currency of the EL inspection methodology, its proven virtues can in turn lead to misuses and practical limitations. Also, in the absence of robust standards capable to regulate, in full, the EL technique, elucidating whether a specific microcrack, a busbar soldering issue, or a cell mismatch may be acceptable or not can be subject to every inspection background. Therefore, the quintessential qualitative nature of the information enabled by an EL analysis should be properly refereed and tackled by expert third-party entities, so that any valid penalty, warranty, or liability claim may be fairly addressed.