Design and Analysis of an off-Grid PV/Wind/Battery/Diesel Generator Hybrid Renewable Power System for a Healthcare Facility in Gharyan, Libya

Abstract

This paper studies the efficiency of the proposed grid-tied hybrid renewable energy generation system at a large hospital in Gharyan, Libya. As mentioned earlier, the combination of the Eocycle EO20 wind turbine system with the proposed system involves a solar PV system of 50 kWp. Here, the batteries serve as the energy storage element, while the diesel engine serves as the backup energy source in the event of breakdowns. The energy generated from the sunlight is 94,091 kWh/yr, while that obtained from turbines equals 131,203 kWh/yr. Speaking of economic aspects, it can be stated that the proposed system is highly efficient, which is proved by its low LCOE 0.47$/kWh) and NPC (5,061$/year). Concerning the ecological aspects, the reduction in CO₂ emissions amounts to 83,393 kg/yr = 83.4 tons/year and Avoided Carbon Cost 478 $/year. More precisely, all these emissions come from buying electricity, since no diesel engines were used in the entire process.