Energy storage system based on hybrid wind and photovoltaic technologies

Abstract

Clean energy sources like wind and solar have a huge potential to lessen reliance on fossil fuels. Due to the stochastic nature of various energy sources, dependable hybrid systems have recently been developed. This paper's major goal is to use the existing wind and solar resources to provide electricity. A 6 kWp solar-wind hybrid system installed on the roof of an educational building is studied and optimized using HOMER (Hybrid Optimization of Multiple Energy Resources) software at different levels of reliability. At an average annual Cost of Energy (COE) of $1.156 per kWh, the system generates 1996 kWh of power overall. Investigations are made on the techno-economic characteristics of real and ideal hybrid system topologies with maximum capacity shortfalls of 0 %, 5 %, 10 %, and 20 %. The hybrid system's sensitivity analysis looks at how a capacity gap affects overall net present costs and excess power generation. A 2 kWp PV system with one string of ten 12V batteries is shown to be more cost-effective than the existing system with a COE of $0.575/kWh. The most effective configuration for utilizing the site's solar and wind resources is demonstrated to be a 5 kWp wind turbine, a 2 kWp PV system, and battery storage. A wind-solar hybrid system is more expensive than the current system. Despite this, an additional 1 kWp solar PV system may be added to the current system due to the reduction in the limit deficit from 22.3 % to 3.1 %. The findings show that solar-wind hybrid energy systems may efficiently use renewable energy sources for dispersed applications. Additionally, new research directions are noted.

Keywords

• Hybrid optimization of multiple energy resources (HOMER)
• Solar-wind hybrid energy
• Power generation
• Wind photovoltaic-storage