RT info:eu-repo/semantics/article T1 Performance of grid-tied PV facilities based on real data in Spain: Central inverter versus string system A1 Diez Mediavilla, Montserrat A1 Dieste Velasco, Mª Isabel A1 Rodríguez Amigo, María del Carmen A1 García Calderón, Teófilo A1 Alonso Tristán, Cristina K1 Inverter layout K1 PV system K1 Performance K1 Grid-connected system K1 Electrical engineering K1 Electrotecnia AB Two complete years of operation of two grid-tied PV facilities is presented. Energetic and economic performance of both installations has been compared. Located in the same place, the installation of these facilities followed the same construction criteria – PV panels, panel support system and wiring – and the facilities are exposed to the same atmospheric temperature and solar radiation. They differ with regard to their inverter topology used: one facility uses a central inverter and the other a string inverter configuration. The performance of the facilities has been determined using a procedure based on a small number of easily obtained parameters and the knowledge of the analyzed system and its operation mode. Electrical losses have been calculated for both systems and a complete comparison between them has been carried out. The results have shown better performance for distributed system in economic and energetic terms. PB Elsevier SN 0196-8904 YR 2014 FD 2014-10 LK http://hdl.handle.net/10259/4696 UL http://hdl.handle.net/10259/4696 LA eng NO Spanish Government (Grant ENE2011-27511) and the Department of Culture and Education of the Regional Government of Castilla y León, Spain (Grant BU358A12-2). DS Repositorio Institucional de la Universidad de Burgos RD 11-dic-2024