Assessing sizing optimality of OFF-GRID AC-linked solar PV-PEM systems for hydrogen production |
| |
| Affiliation: | 1. Royal Institute of Technology, KTH, Department of Energy Technology, Brinellvägen 68, Stockholm SE-100 44, Sweden;2. Department of Industrial Engineering and Mathematical Sciences, Marche Polytechnic University, Ancona, Italy;3. ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Department of Energy Technologies and Renewable Sources, Laboratory of Energy Storage, Batteries and Hydrogen Production & Use (TERIN-PSU-ABI). Via Anguillarese, 00123 Rome, Italy |
| |
| Abstract: | 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. |
| |
| Keywords: | Solar hydrogen Techno-economic analysis |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
