2026-04-17T05:14:31Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/46952024-05-14T11:27:11Zcom_10259_4393com_10259_5086com_10259_2604col_10259_4394

00925njm 22002777a 4500 dc Diez Mediavilla, Montserrat author Dieste Velasco, Mª Isabel author Rodríguez Amigo, María del Carmen author García Calderón, Teófilo author Alonso Tristán, Cristina author 2013-12 A new procedure is presented to analyse the performance of grid-tied PV facilities. It needs limited amounts of data that are easily sourced and is based on knowledge of the analysed system and its mode of operation. The procedure is applied, in a case study, to compare real PV production at two 100 kWp grid-connected PV installations. Located in the same geographical region, the installation of these two facilities followed the same construction criteria – PV panels, panel support system and wiring – and the facilities were exposed to the same atmospheric temperature and solar radiation. They differ with regard to their inverter technology: one facility uses an inverter with an integrated transformer system and the other uses a transformerless inverter. The results show that the transformerless inverter system performed better than the isolated system by a factor of 1.2%, which, in economic terms, represents more than 2000 €/year 0196-8904 http://hdl.handle.net/10259/4695 10.1016/j.enconman.2013.08.035 PV facilities Performance Transformerless inverter Isolated inverter Performance of grid-tied PV facilities: a case study based on real data