Up until now, redispatch measures between the four German transmission system operators (TSOs) – 50Hertz, Amprion, TenneT, and TransnetBW – and the operators of power plants and storage facilities with a capacity of more than 10MW have been carried out on the basis of IT tools specific to the particular TSO control area. In order to align the individual procedures nationwide, the four TSCNET shareholders on 26 June successfully put the first component of their joint redispatch platform into operation, the “Redispatch Settlement Server” (“Redispatch-Abwicklungsserver” – RAS).
The German electricity market is increasingly characterised by volatile generation and RAS is an instrument to initiate redispatch measures both faster and more flexibly. With harmonised data formats and processes, the redispatch platform, of which the RAS is the first part, provides the basis for the integration of renewable energies into the existing redispatch processes, that is, for future-proof congestion management. In concrete terms, RAS allows TSO control centres to monitor and process all relevant power plant interventions. As a result, TSOs can coordinate their redispatch decisions and activities more efficiently. Moreover, the central management introduces frictionless settlement and transparency processes.
The second part of the redispatch platform is the “Redispatch Determination Server” (“Redispatch-Ermittlungsserver” – RES). RES will complement or replace existing forecasting tools for expectable grid situations such as imminent bottlenecks. It will identify those options for action that are compliant with the regulations and most cost-efficient. Based on RES calculations, TSOs can resolve both predicted and existing grid congestions more efficiently than today. RES is scheduled to go into operation in 2021.