Optimization of an isolated photovoltaic water pumping system with technical–economic criteria in a water users association

Abstract With proper management, the modernization of irrigation systems makes it possible to improve efficiency application and use water at cost an increase in pumping needs and, therefore, increment energy consumed. The recent drastic price for put viability many farms risk. In this context, using photovoltaic solar power stations has become increasingly attractive alternative a cheap reliable option. dimensioning powered by must be done considering variability radiation take advantage available energy, especially during periods less irradiation. By investigating particular case, paper studies effect increasing number pumps parallel while maintaining total power, as well relationship between installed capacity system, meet requirements throughout year. pumped volume increased same generator. Although limit, beyond which no greater significant rise is achieved, installation costs increase. addition, installed, required generator decreases increases. case studied, 27% annual was achieved incrementing from one five, thus leading 44.1% reduction size 13.3% compared with system only pump. procedure used determine most appropriate install when two tanks, minimizes generator's guaranteeing requirements, easily generalizable sizing isolated systems.