| PV-Fuel Cell vs. PV-Diesel Generator Hybrid Power System: A Comparative Study |
| کد مقاله : 1075-THFC |
| نویسندگان |
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کیا نظیفی فرد * موسسه عالی آموزش و پژوهش مدیریت و برنامه ریزی، تهران، ایران |
| چکیده مقاله |
| In this paper, a hydrogen based hybrid renewable energy system (a PV-Fuel cell HPS) and a PV-diesel generator HPS are simulated and optimized based on the minimum net present cost criterion using Homer Pro software. A comparative evaluation for these two hybrid systems is conducted for off-grid applications based on their technical, economic and environmental performance. In the PV-diesel generator system, the diesel generator provides the required power during low or no energy output from PV. In PV-Fuel cell HPS, the hydrogen is produced from the electrolysis of water and the electrolyzer uses excess output energy from PV to produce hydrogen. The hydrogen will be stored in the hydrogen tank and will be used as fuel by a series of PEM fuel cells to produce electricity and is considered a backup power source when the system fails to meet the required energy demand. The results of the simulation and analysis showed that the net present cost for the optimal PV-Diesel generator hybrid configuration is about half of PV-FC HPS. The levelized cost of energy for PV-generator and PV-FC are about 0.25$ and 0.53$ respectively. However the environmental benefits of utilizing PV-FC is significantly higher and will lead to a reduction of about 80 Kg of CO2 per year while the PV-generator has an emission level of about 295 ton of CO2 per year as well as higher levels of emission for other pollutants. The LCOE for PV-FC is higher than feed-in-tariffs in Iran which makes is less economically viable for on-grid applications. Hydrogen-based hybrid systems are capable of producing power in a sustainable and environmentally-friendly way and are considered a solution to the intermittent nature of output power from renewable energy sources. A policy implication from this analysis is that an increase in the feed-in-tariffs will lead to the improvement in the cost efficiency of hybrid renewable energy systems and as a result will increase the economic attractiveness of these systems and will give the hydrogen-based hybrid power systems an economic competitive edge against the hybrid systems that use fossil fuel based technologies as backup power supply. |
| کلیدواژه ها |
| Hydrogen-based Hybrid System, Fuel Cell, Simulation, Fossil Fuels, Renewable Energy, Intermittency |
| وضعیت: چکیده برای ارائه به صورت پوستر پذیرفته شده است |