At the beginning of 2018, the Austrian Federal Government declared in the Austrian Climate and Energy Strategy for 2030 that the total electricity in Austria should come from renewable energy (RES) by the year 2030. More precisely, the entire domestic electricity requirement should be covered by domestic renewable energies - taking into account predefined restrictions. To achieve this goal, it is expected that the share of fluctuating renewable energies such as solar and wind energy will grow strongly. This, in turn, increases the need for flexibility in the underlying power system. In addition to the flexibility options such as power grid expansion and load management, storage systems will also play a key role in providing short-term and medium-term flexibility as well as for seasonal compensation.
The aim of this study, that has been commissioned by Oesterreichs Energie and which will be conducted by AIT and TU Wien, is to present the need for flexibility between 2020 and 2050 in a balanced scenario in which all respective available technologies are considered equivalent. Within the scope of the dynamic analysis, the most technically and economically sensible solution is to be determined for the different time horizons of the flexibility requirement. The basis for this is a techno-economic analysis of future required and respectively available flexibility options, i.e. storage systems and other flexibility options such as demand response, flexible power plants or the contribution of transmission networks to increase system flexibility.