The Austrian transmission system operator (TSO) APG and the four German TSOs 50Hertz, Amprion, TenneT, and TransnetBW are intensifying their cooperation in terms of balancing energy. Since December 2019, the five TSCNET shareholders have been exchanging minutes reserve, i.e. the provision of short-term power reserves to balance fluctuations in generation and consumption that affect frequency. Minutes reserve comes into play after primary control and secondary reserve, the two short-term effective balancing energies. Austria and Germany are thus the first countries in Europe to cooperate on all types of control reserve and make a significant contribution to secure electricity supply in Europe.
The cooperation with the project name “GAMMA” (German-Austrian Manual Merit Order Activation) is trendsetting, as it is the first collaboration in the field of minutes reserve to fulfil the objectives of the EU guideline for electricity balancing on a regional scale. Germany and Austria are testing a regional internal market for the joint utilisation of minutes reserve and will contribute their new experience with the integration of control energy markets to the European “MARI” (Manually Activated Reserves Initiative) project.
Beyond the requirements of the guideline, the Austro-German cooperation will be expanded in February 2020 to include the joint procurement of secondary reserves. It is intended that in an initial phase up to 80MW, later up to 280MW, can be procured across borders. The cost-benefit analysis for the allocation of cross-border transport capacities was jointly developed by the cooperating TSOs. It compares the market value of cross-border transmission capacity for the day-ahead market with that of the secondary reserve, thereby optimising procurement and determining the amount of cross-border transmission capacity allocated to the secondary reserve. This cooperation also represents a lighthouse project in Europe and anticipates the goals of the EU Clean Energy for All Europeans Package.