Pakistani researchers have examined a number of configurations of an offgrid PV-hydrogen system meant to energy EV chargers. The system achieves the bottom stage of electrical energy prices when it’s mixed with battery storage.
An worldwide analysis group has carried out a techno-economic evaluation of a standalone EV charging station that makes use of photo voltaic power and hydrogen as sources of electrical energy and will also be mixed with a lithium-ion (Li-Ion) battery.
The evaluation was carried out with the simulation software program HOMER below the environmental situations of the southeastern Pakistani metropolis of Jamshoro. “Hybrid PV-hydrogen and PV-hydrogen-battery are two completely different eventualities developed and in contrast primarily based on their identical technical in addition to monetary ideas,” specified the researchers, noting that the chosen location has a day by day photo voltaic radiation of 5.53 kWh/m2.
The simulated standalone station is assumed to make use of an unspecified variety of photo voltaic panels, with an influence of 327 W and an effectivity of 21%. They are assumed to have a lifetime of 25 years and an annual whole price of $118,618.74. The electrolyzer has 75% effectivity, a lifetime of 15 years, and an annual price of $51,669.94. Its proton change membrane (PEM) sort gas cell has a lifetime of 40,000 hours and an annual price of $20,667.72, whereas the hydrogen tank has a lifetime of 25 years and an annual price of $6,729.83.
That system was then in contrast towards the same system with the addition of a Li-Ion battery of 1 kWh, which had a lifetime of ten years and a value of $20,856.92 per yr. In each eventualities, the system has an EV load of 1,700 kWh/day. The EVs are believed to be MG ZS EV sport utility autos with a 44.5 kWh battery, which may obtain a most cost of twenty-two kW.
Through the evaluation, the group discovered that the hybrid PV-hydrogen-battery power system has extra monetary and financial advantages in comparison with the PV-hydrogen power system alone. “Furthermore, it is usually seen that the price of power from the hybrid PV-hydrogen-battery is extra engaging to $0.358/kWhfrom $0.412 $/kWh power price from hybrid PV-hydrogen,” the researchers additional defined.
“The energy produced by the hybrid PV-hydrogen-battery power for the day by day load demand of 1700 kWh/day, consists of two energy produced independently by PV and gas cells of 87.4% and 12.6 %, respectively,” the group emphasised.
Its findings are offered in “Techno-economic evaluation of standalone hybrid PV-hydrogen-based plug-in electrical car charging station,” revealed in Energy Reports. The research was carried out by scientists from Pakistan’s Mehran University of Engineering & Technology, Qatar’s Qatar University, United Arab Emirates University of Sharjah, and Iran’s Islamic Azad University.
“The findings of this research present an encouraging nod for planning an off-grid totally renewable system by means of PV and hydrogen with a battery system resulting from its price effectiveness, ” concluded the staff.
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