In this section, the main features of the 22 software developed for hybrid system design are discussed along with a comparative analysis. The analysis of a PV-battery and PV-wind-battery hybrid system is presented as case studies using HOMER and RETScreen.Ī comprehensive understanding is essential about available hybrid system models and software tools, their features, shortcomings, user need, and choice for research studies. The limitations, availability, and areas of further research have also been identified. A comparative analysis of these software tools along with the literature review of research carried out using these software worldwide is also presented. The applications and status of 22 software, namely, HOMER, HYBRID 2, RETScreen, iHOGA, INSEL, TRNSYS, iGRHYSO, HYBRIDS, RAPSIM, SOMES, SOLSTOR, HySim, HybSim, IPSYS, HySys, Dymola/Modelica, ARES, SOLSIM, HYDROGEM, Hybrid Designer, EMPS.
The use of an appropriate software tool is important in order to get reliable simulation results, which can be used for design and optimization of the chosen HRES system. In this section, we briefly assess available software tools for simulation of HRES. A number of software tools have been developed to assess the technical and economic potential of various hybrid renewable technologies to simplify the hybrid system design process and maximize the use of renewable resources. This requires software tools and models which can be used for the design, analysis, optimization, and economic planning. Due to multiple generation systems, hybrid system solution is complex and requires to be analyzed thoroughly. The technical and economic analyses of a hybrid system are essential for the efficient utilization of renewable energy resources. Minimum levelized life cycle electricity generation cost, when optimum design technique is usedīut in most cases due to lack of optimum designing or proper sizing, a hybrid energy system is oversized or not properly planned or designed, which makes installation cost high. Reduced need for energy storage capacity, especially where different sources have complementary behavior A hybrid energy system has the following main advantages in comparison to a single source- based system : As this chapter shows, several hybrid energy system configurations can be used for power generation like PV-wind-diesel systems, hydro-wind-PV-based systems, biomass-wind-PV installations, wind-PV- based installation, PV-wind-hydrogen/fuel cell hybrid energy systems, etc.
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In most cases, a hybrid energy system incorporates two or more electricity generation options based either on renewable energy units or on fossil fuel-based units like diesel-electric generator or a small gas-turbine along with energy storage and electronic devices.
In the presence of storage, this can be considered as a hybrid source. Single source-based renewable energy system incorporates only one electricity generation option based on wind/solar thermal/solar photovoltaic (PV)/hydro/biomass, etc., along with appropriate energy storage and electronic systems. Renewable energy systems are based on a single source or multiple sources of renewable generators.