Techno-economical evaluation of stand-alone hybrid renewable energy systems for urban area in Sanandaj, Iran

The aim of this paper is to model and design a hybrid renewable energy system to meet fulfill the primary load for an urban residential area located in Sanandaj in the western region of Iran. The hybrid system consists of Photovoltaic (PV) array, wind turbines, batteries and diesel generators. Differentcombination of wind turbines, PV, batteries and generators were evaluated in order to determine the optimal combination of thembased on the minimum Net Present Cost (NPC) index. Sensitivity analysis is done to evaluate the impact of wind speed variations on the results. Finally, evaluating the economic of plan by payback period and grid extension analysis was performed. The proposed hybrid system is modeled, optimized and simulatedusing Hybrid Optimization Model for Electric Renewable (HOMER). The simulation and optimization results show thatthe optimal integrated renewable energy system configuration consists of 150kW PV array, 1 units Fuhrländer 30 wind turbine, 40 units Surrette 6CS25P battery cycle charging, and a 100 kWAC/DC converter so that the PV power can generate electricity at 264,815 kWh/year while the wind turbine systemcan generate electricity at 20,364 kWh/year, giving the total electrical generation of the system as 285179kWh/year. Thiswould be suitable for deployment of clean energy for uninterruptable power performance in the residential area. The economics analysis result found that the integrated renewable system has total NPC of 972,762 US Dollar.

Keywords:

PV array , Techno-economic evaluation , Net present cost (NPC) , Standalone renewable energy system , wind turbine