The current state of system integration shows that existing solutions for the supply and large-scale storage of renewable energies are insufficient due to their volatility – especially in view of declining nuclear and coal-based energy supply. Alternatives such as the use of iron as energy carrier can only contribute to a transformation of the energy system if they meet the following requirements:
For the social sciences, this involves fundamental questions of governance and innovation policy of the energy transformation as well as applied political-economic questions about the realization and later establishment of the new storage technology. Thus, the parallel investigation of technical and political-economic aspects is crucial. Research field 4 will develop political-economic factors for an integrated systems analysis that goes far beyond the usual modelling of CO2 pricing.