The RSOC System will be integrated in a steel work, which forms a perfect match of RSOC advantages and industrial needs in terms of H2 usage, cost expectations as well as fuel, steam and electricity supplies:
Use of waste heat in form of steam to reach an overall electrolysis efficiency of over 80 %LHV
Use of process gases (e.g. coke oven gases) for power generation in power production mode with a high efficiency of ca. 50 %LHV
Proof of fuel flexibility: in power production mode hydrogen or natural gas may be used as fuel
Electrolysis and fuel cell operation are achieved with one set of equipment at minimal CAPEX. Further cost reductions will be investigated by studies on industrial design and up-scaling.
The system will be operated reversibly using natural gas and industrial process gases in order to improve the economics of the installation.
Adaptation to fluctuating electricity supplies (e.g. from wind power) and varying electricity costs will result in new achievement in the system dynamics.
SOEC and SOFC operation will be based on system layouts for highest conversion efficiencies. The electricity demand of hydrogen production should become as low as 40 kWh/kgH2, whereas the electrical efficiency during power production is designed for 50 %LHV.
New materials and optimized stack designs will be applied to achieve a product maturity in terms of performance, robustness, durability, operational flexibility and costs.