%A Isaac Afonso Barata Carrelo %A Rita Hogan Teves de Almeida %A Luis Narvarte Fernández %C Brussels, Belgium %I Ies %K Design; Monitoring; Stand-alone PV Systems; Water-Pumping %T Performance of a 40 kWp PV irrigation demonstrator combining variable and constant pressure pumping %B 35th European Photovoltaic Solar Energy Conference and Exhibition %P 1876-1879 %D 2018 %L upm55424 %X This paper describes a 40 kWp PV irrigation system combining variable frequency and constant pressure pumping installed in Sardinia, Italy. The objective of this paper is to present the design, as well as the implementation of the system. Moreover, monitoring data from 2017 irrigation season, from June to the end of October is analyzed and some first results are presented. During this period, the PV irrigation system pumped a total of 20574 m3.