Hybrid Energy Storage and Hydrogen Supply Based on Aluminum—a Multiservice Case for Electric Mobility and Energy Storage Services
Source abstract
Abstract
Abstract The realization of a fully decarbonized mobility and energy system requires the availability of carbon‐free electricity and fuels which can be ensured only by cost‐efficient and sustainable energy storage technologies. In line with this demand, a techno‐economic evaluation of aluminum as a cross‐sectoral renewable energy carrier is conducted. The assessment, based on a newly developed process, involves the wet combustion of Aluminum at 700 °C resulting in heat and hydrogen (H2) generation. The designed conversion plant enables the contemporaneous generation of electricity and on demand H2 (up to 4 MW and 46.8 kg h–1) with round‐trip efficiencies as high as 40.7% and full recycling of the Al2O3 waste. This study, assuming the carbon‐free production of Al and three different energy cost scenarios, proves the feasibility of the e‐fueling station business case. The overall energy conversion including fuel production (power‐to‐Al), utilization (Al‐to‐power and Al‐to‐H2), and recycling requires a capital investment of 5200 € per kW installed power without additional primary material demand. Hence, the estimated power‐to‐X cost for the Al‐based H2 is estimated in the range of 4.2–9.6 € kg–1 H2, while wind and solar power based green H2 production cost varies from 6.5 to 12.1 € kg–1 H2.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Hydrogen Storage and Materials · Hybrid Renewable Energy Systems · Ammonia Synthesis and Nitrogen Reduction
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Karlsruhe Institute of Technology (KIT) Institute for Technology Assessment and System Analysis (ITAS) Karlstraße 11 76133 Karlsruhe Germany
Universitá Degli Studi Di Perugia (UNIPG) Piazza dell'Università 1 Perugia 06123 Italy
Karlsruhe Institute of Technology (KIT) Helmholtz Institute Ulm for Electrochemical Energy Storage (HIU) Helmholtzstraße 11 89081 Ulm Germany
Funding
Bundesministerium für Bildung und Forschung · Deutsche Forschungsgemeinschaft · Horizon 2020 Framework Programme
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