Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 46, Issue 57, Pages 29376-29390Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.12.197
Keywords
Renewable energy systems; Energy supply systems; Hydrogen pipelines; Power-to-hydrogen
Categories
Funding
- Helmholtz Association
- Federal Ministry for Economic Affairs and Energy of Germany [03ET4064A]
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Variable renewable energy sources (VRES) are considered the cornerstones of future energy supply systems, with green hydrogen proposed as a sustainable energy carrier to address their intermittency. Designing a fully VRES-based European energy system, taking into account supply security across 38 weather year scenarios, and considering the impact of different power generation locations, can lead to lower total annual costs for the system.
Variable renewable energy sources (VRES) will be the cornerstones of future energy supply systems. Nevertheless, their inherent intermittency remains an obstacle to their widespread deployment. Renewably-produced or 'green' hydrogen has been suggested as an energy carrier that could account for this in a sustainable manner. In this study, a fully VRES-based European energy system in the year 2050 is designed using an iterative minimal cost-optimization approach that ensures robust supply security across 38 weather year scenarios (1980-2017). The impact of different power generation locations is factored in by defining exclusive VRES groups within each optimization region. From this, it can be seen that higher numbers of groups in each region offer cheaper electricity generation locations to the optimizer and thus decrease the system's total annual costs. Furthermore, the robust system design and impact of inter-annual variability is identified by iteratively combining the installed capacities of different system designs derived through the application of the 38 historical weather years. The system design outlined here has significantly lower capacities in comparison to the maximum regional capacities obtained in the first round of optimization. (c) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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