Automatically translated with deepl.com.
Bayreuth, Berlin, Dortmund, Stuttgart
The transmission capacity available for cross-border electricity trading is an important parameter for the integration of the European electricity markets. The EU Internal Electricity Market Regulation stipulates that at least 70% of cross-border transmission capacity (net transfer capacity approach) or a critical grid element (flow-based market coupling approach) must be made available for European cross-zonal electricity trading.
Germany plans to achieve this 70% target by December 31, 2025 by means of the measures described in the "Bidding Zone Action Plan". Until then, the minimum value for the capacity for cross-bidding zone electricity trading will increase annually on January 1 via a linear progression curve, starting from the pre-2020 level.
Compliance with the annually applicable minimum values is checked by the German transmission system operators on the basis of a calculation methodology defined by the Federal Network Agency on the basis of the EU Internal Electricity Market Regulation.
According to Art. 15 of the EU Internal Electricity Market Regulation, the transmission system operators concerned are obliged to record the results of this review in an annual report. The reports are approved and published by the Federal Network Agency.
By also publishing the report on netztransparenz.de, the transmission system operators aim to provide the interested public with an overview of the capacities available for European electricity trading across bidding zones. All previously published reports can be found at the bottom of this page.
The available transmission capacity for cross-border electricity trading is an important parameter for the integration of European electricity markets. The EU Internal Electricity Market Regulation stipulates that at least 70% of the cross-border transmission capacity (Net Transfer Capacity approach) or of a critical network element (Flow-Based Market Coupling approach) must be made available to European cross-zonal electricity trading. Germany plans to achieve this 70% target by 31.12.2025 through the measures described in the "Action Plan Bidding Zone". Until then, the minimum value for the capacity for cross-zonal electricity trading will increase annually on January 1 via a linear trajectory, starting from the pre-2020 level.
The German Transmission System Operators verify compliance with the annually applicable minimum values on the basis of a calculation methodology defined by the Federal Network Agency on the basis of the EU Electricity Market Regulation.
Pursuant to Art. 15 of the EU Internal Electricity Market Regulation, the Transmission System Operators are obliged to submit the results of this review in an annual report. The reports are approved and published by the Federal Network Agency.
By publishing the report on Netztransparenz.de, the Transmission System Operators intend to provide the interested public with an overview of the capacities available for cross-zonal European electricity trading. All recent reports can be found below.
The European Single Electricity Market Regulation (EU) 2019/943, which came into force on July 4, 2019, stipulates a minimum value of available capacity for cross-bidding zone electricity trading. Following the identification of structural bottlenecks in accordance with Article 14(7) of the Internal Electricity Market Regulation, the Federal Ministry for Economic Affairs and Energy (BMWi) developed a national action plan in accordance with Article 15 of the Internal Electricity Market Regulation and commissioned the German transmission system operators (TSOs) to calculate the initial values for the linear progression curve in accordance with Article 15(2) of the Internal Electricity Market Regulation.
The TSOs calculated the initial values for the German bidding zone borders and critical grid elements on the basis of a guideline for the initial value calculation issued by the Federal Network Agency (BNetzA). The guideline for the initial value calculation stipulates, among other things, that a common mean value is calculated for all bidding zone borders and critical grid elements that will be part of the load flow-based market coupling in the capacity calculation region (CCR) Core (Core FB MC) in future and shown as the initial value. Until the Core FB MC is implemented, the initial value determined in this way is to be applied within the framework of load flow-based market coupling in the Central Western European region (CWE) and to the NTC borders, which will become part of the Core FB MC in the future. For borders in the Hansa capacity calculation region, an initial value is to be determined and applied for each border.
These calculations result in the following initial values and corresponding linear progression curves:
The 20% minimum values (CWE-minRAM) introduced in the CWE region in April 2018 will continue to be granted regardless of the aforementioned starting values, provided this is possible while maintaining system security.
The starting value of 11.5% results in a total capacity of at least 736 MW for the profile of DE(50Hertz) -> PL & CZ and DE(TenneT) -> CZ, which must be made available by the German side for cross-bidding zone trading (both in the import and export direction). The capacity offered can be reduced by the Polish and / or Czech transmission system operator within the framework of harmonization. The MW value published here can be used by the cross-bidding zone trade on the profile DE(50Hertz) -> PL & CZ and DE(TenneT) -> CZ (and in the opposite direction) but also by any trade across other bidding zone borders.
For the DE-DK1 border, the initial value is a minimum capacity of 428 MW in accordance with the guidelines for the initial value calculation of the Federal Network Agency. Obligations from "Commission Decision of 7.12.2018 [...] Case AT.40461 - DE/DK Interconnector" regarding a minimum capacity at the DE-DK1 border (TenneT's Commitment) remain unaffected by this.
The initial value calculation for the bidding zone border DE-DK2 has shown that more than 70% of the capacity of this border has already been made available for cross-bidding zone trading in the past. This means that the 70% minimum requirement from the Electricity Single Market Regulation must be complied with from 01.01.2020. In the current grid topology, this corresponds to a capacity of at least 420 MW to be offered for trading in both directions on the border.
The starting value for the DE-SE4 border (Baltic Cable) is 248 MW or 41%.
With the commissioning of the Nordlink interconnector, the capacity calculation for the DE-DK1 and DE-NO2 borders is carried out in a coordinated NTC procedure (cNTC). For this purpose, the minimum capacities of the respective borders are applied as minimum margins (share of the maximum permissible current flow) to the critical grid elements taken into account.
For the time being, the minimum capacity of the DE-SE4 limit will continue to be applied directly to the NTC values. Due to the special grid connection situation, the transmission capacity of the DE-SE4 border (Baltic Cable) also takes into account the basic characteristics of the distribution grid of Schleswig-Holstein Netz AG and the availability of the Baltic Cable.
This results in the following curves: