HANNOVER MESSE 2020,
20 - 24 April
SCCER Heat and Electricity Storage
H2 production by electrolysis is an especially important issue since this is the first step in the conversion of electricity to synthetic fuels and realizes a closed material cycle for energy. Inexpensive and safe storage of hydrogen is also crucial in order to enable a hydrogen economy. The emerging technologies in the field including redox flow batteries, radically lower cost catalysts, and high energy density liquid storage routes are in focus. Redox flow battery for hydrogen production is already established successfully on the laboratory scale (see schematic), and will be implemented as a large scale demonstrator at the water treatment facility in Martigny (Switzerland). The hydrogen produced will be co-mingled with biogas generated at the water treatment facility, and later will be used directly in the hydrogenation of CO2. The charged electrolyte produced in the battery may also be used at a later stage for the direct reduction of CO2 or the co-generation of hydrogen and CO2 reduction products. Beside of electrolysis, photo catalysis based on novel-metal free catalysts, is explored on the level of fundamental research to generate hydrogen directly from sunlight without the detour to electricity.
Hydrogen storage in chemical compounds: The state of the art hydrogen storage is either as super cooled liquid or compressed gas (70 MPa). Both ways require significant amount of energy. An alternative is the production of molecules which is easy to synthesize from and to decompose to hydrogen. The chemicals can be stored for unlimited time in liquid or solid state. Such molecules are alumina or boric compounds, but also organic compounds like formaldehyde, methanol or formic acid are investigated for energy storage application.
Forum Integrated Energy
The assessment of future development scenario in terms of energy storage systems as part of the energy network (power/heat generation, distribution and consumption) ...
With the aim to reduce the CO2 footprint, as proposed and enforced by policy makers in order to reduce the anthropogenic effects on the climate, CO2 hydrogenation ...
In order to bring the technology forward, three fundamental research directions will be pursued with strong synergies between them, accompanied by two applied projects.
Advanced Adiabatic Compressed Air Storage (AA-CAES): Plants based on AA-CAES use electricity during periods of excess power generation to compress air. The heat ...
Coupling the various energy sectors is a key element for the future energy system. This concept enables to shift renewable electricity into parts of the energy system, ...