Technical and economic comparison of national and joint cross-border curative congestion management application

Due to an increasing penetration of renewable energies, planning and operation of the European transmission grid is facing new requirements. Whereas the volatility of feed-in and the amount of transmitted power is rising rapidly inducing needs for additional transmission lines, grid enhancement is not keeping pace with this development. Therefore efficient congestion management methods are becoming essential in the short- and mid-term. This paper presents an approach to compare the technical and economic effects of a national redispatch regime, which is currently common practice in most of the European countries, to a joint cross-border redispatch regime, which might become common practice in the future. To demonstrate the effectiveness of the developed method, an investigation of the redispatch volumes and costs is carried out for the Central-Western-European (CWE) energy system expected in 2020.