Abstract
This research-in-progress paper investigates the concept of a virtual battery storage and its integration into the unit commitment of the conventional and pumped-storage hydro power plant fleet in Germany after the nuclear phase-out in 2023. The study suggests that the efficiency of power supply with conventional power plants increases by substituting pumped-storage hydro power plants with a virtual battery storage, which is pointed out by decreasing operation of conventional power plants, costs and CO $$_2$$ emissions. Additionally, the paper shows a conflict between efficient storages and gas power plants, since batteries allow to store cheap power from base load power plants with high CO $$_2$$ emissions.
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