Impact of Multi-Year Analysis on the Optimal Sizing and Control Strategy of Hybrid Energy Systems

Grid-connected hybrid energy systems (HESs) represent a very promising option for addressing the problem of power outages worldwide. The selection suitable optimization approach and operational strategy are important aspects optimal design operation these HESs. This study aimed to find grid-connected PV/battery system sizes supply electricity residential house in Karbala, Iraq, using two control strategies, load following (LF) cycle charging (CC). was performed HOMER software with without multi-year effects. comparison analysis carried out by considering techno-economic environmental performance feasible systems. simulation results indicate that configuration is achieved CC strategy. Furthermore, module affects dramatically. Under strategy, effects increase required PV size from 6 kW 7 number batteries 18 20, leading an net present cost $26,750 $33,102 decrease CO2 emissions 7581 kg/year 7379 kg/year. also show highly affected variations some critical parameters, such as solar radiation, average load, battery degradation limits. achievements higher effectiveness on