Most current forecasts and studies agree that, especially in countries with a higher share of renewables, advances in electromobility could see electricity supply fluctuate. That is why it is important to come up with a solution, as quickly as possible, for the large-scale storage of electricity from renewable sources and to find a way of backing them up with other low-emission sources when the sun is not shining and the wind is not blowing. At present, this job is primarily in the hands of nuclear power plants. This is perhaps why the European Commission, in its latest documents, is projecting that, in 2050, the European energy mix will consist of 80% energy from renewable sources and the remaining 20% from nuclear power plants.