Статья

Assessing sizing optimality of OFF-GRID AC-linked solar PV-PEM systems for hydrogen production

Felipe GallardoRoyal Institute of Technology, KTH, Department of Energy Technology, Brinellvägen 68, Stockholm SE-100 44, SwedenJ.L. Garcı́aRoyal Institute of Technology, KTH, Department of Energy Technology, Brinellvägen 68, Stockholm SE-100 44, SwedenAndrea Monforti FerrarioDepartment of Industrial Engineering and Mathematical Sciences, Marche Polytechnic University, Ancona, ItalyGabriele ComodiDepartment of Industrial Engineering and Mathematical Sciences, Marche Polytechnic University, Ancona, ItalyJustin NingWei ChiuRoyal Institute of Technology, KTH, Department of Energy Technology, Brinellvägen 68, Stockholm SE-100 44, Sweden

2022en

ABI

Аннотация

Herein, a novel methodology to perform optimal sizing of AC-linked solar PV-PEM systems is proposed. The novelty of this work is the proposition of the solar plant to electrolyzer capacity ratio (AC/AC ratio) as optimization variable. The impact of this AC/AC ratio on the Levelized Cost of Hydrogen (LCOH) and the deviation of the solar DC/AC ratio when optimized specifically for hydrogen production are quantified. Case studies covering a Global Horizontal Irradiation (GHI) range of 1400–2600 kWh/m2-year are assessed. The obtained LCOHs range between 5.9 and 11.3 USD/kgH2 depending on sizing and location. The AC/AC ratio is found to strongly affect cost, production and LCOH optimality while the optimal solar DC/AC ratio varies up to 54% when optimized to minimize the cost of hydrogen instead of the cost of energy only. Larger oversizing is required for low GHI locations; however, H2 production is more sensitive to sizing ratios for high GHI locations.

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Идентификаторы

DOI: 10.1016/j.ijhydene.2022.06.098

Цитирования и источники

Цитирований: 2Использованных источников: 0

Показатели — AkademScholar