Influence of an Inter-TSO Cooperation on the Redispatch Demand in Europe

Congestion of the European transmission grid has increased in recent years. With the adoption of Regulation 2015/1222, the EU aims to establish an EU-wide system for the optimization of redispatch measures. The specific design of the regulatory requirements is the responsibility of ACER and with regard to the Core region was implemented in 2019 in the form of the methodology for coordinated redispatch and countertrading. Therefore the question arises what efficiency gains, in terms of redispatch volumes and costs, can be achieved from ACER’s methodology. This paper describes a method for coordinated cross-border redispatch in accordance with the ACER regulation. The method is evaluated by comparing it with a purely national redispatch method and a redispatch method based on perfect cooperation between all European TSO. Compared to a purely national redispatch, a reduction of the redispatch volume by 5% can be achieved within the framework of the scenario considered.