Agreement on minimum capacity at Danish-German border

25.01.2019

In July 2017, the Danish Ministry of Energy, Utilities and Climate and the German Ministry for Economic Affairs and Energy adopted a joint declaration on the increase of cross-border electricity trade between Western Denmark and Germany. The competent transmission system operators (TSOs), the TSCNET shareholders Energinet from Denmark and TenneT, the Dutch-German TSO, subsequently agreed to implement a joint countertrading programme. Energinet and TenneT have been meeting the requirements of the joint declaration since July 2017 and have since ensured minimum available hourly capacities for both directions at the border.

In addition, TenneT has committed itself to the European Commission (EC) in 2018 to further expand the coordinated trade programme and to implement the corresponding EC decision in cooperation with Energinet from January 2019. In order to better comply with TenneT’s additional obligations from the commitment, the two TSOs have now signed an extended agreement supporting TenneT in doing so.

Energinet and Tennet signed an extended agreement on guaranteeing minimum capacities for cross-border trade

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> See Energinet press release (html)

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Danish-German countertrade models

01.12.2017

The DK1-DE interconnector between Danish Jutland and the German federal state of Schleswig-Holstein is the western link between the transmission systems of Denmark and Germany. This summer, the Danish Ministry of Energy, Utilities and Climate and the German Ministry for Economic Affairs and Energy in liaison with the respective national regulatory authorities declared their common aim to secure a minimum of available hourly import and export capacity on the DK1-DE interconnector. Subsequently, it was up to the two TCNET shareholders Energinet.dk, the Danish transmission system operator (TSO), and the Dutch-German TSO Tennet to provide for the implementation of the governmental agreement.

The declaration stipulates that in cases of physical congestions the two TSOs are to perform countertrade operations to secure the minimum capacities. This is what Energinet and TenneT are doing since early July 2017, thus guaranteeing minimum available hourly capacities. While up to now, the TSOs bank on existing methods, this might not be sufficient in view of the expected growing amount of countertrade in the future. Energinet and TenneT have therefore compiled an Impact Assessment of various alternative countertrade options, which now has been published. The assessment serves as basis for selecting a definitive countertrade model.

> See Energinet press release (html, with access to the Impact Assessment document)
> See TenneT press release (html, with access to the Impact Assessment document)

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KONTEK interconnector under repair

18.08.2017

There are two interconnectors linking the Danish transmission grid and the transmission system in northern Germany: In the west between Jutland and the German federal state of Schleswig-Holstein, and the eastern connection between Bjæverskov on the Danish island of Zealand and Bentwisch in Mecklenburg-Western Pomerania. The latter one, named KONTEK, is a 400kV DC earth and submarine cable connection with a total length of 170km and a transfer capacity of 600MW.

Two oil-leaking sockets have been detected in the German land cable section of KONTEK in mid-July. Preparations for repair works started immediately and the subsequent mendings will probably continue til September or October. Hence, the interconnector had to be switched off for several times, and further switch offs will be unavoidable. It is for this reason and to avoid capacity curtailments, that TSC member Energinet, the national Danish transmission system operator (TSO), announced that no capacity will be offered in the monthly auction for September 2017 between DE and DK-2.

> See Energinet.dk press release (html)

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TSOs guarantee Danish-German minimum capacities

05.07.2017

Last month, the Danish Ministry of Energy, Utilities and Climate and the German Ministry for Economic Affairs and Energy declared their common will to improve crossborder-exchange between West Denmark and Germany. The electricity trade between the two countries had been significantly low in the last years due to grid congestions in Northern Germany. The main reason for this is the mismatch between the increasing share of renewables and the inadequate grid extension in Germany. Hence, the respective ministries agreed to increase the capacities of the binational interconnectors. The long-term objective is to reach full capacity as soon as the relevant infrastructure has been provided.

The two TSC members Energinet.dk, the Danish transmission system operator (TSO), and the Dutch-German TSO Tennet are the executing players of the Danish-German governmental agreement. The TSOs have taken responsibility by entering into an agreement on capacities for both transmission directions. Starting 4 July 2017, Energinet.dk and TenneT guarantee minimum available hourly capacities. Those are intended to increase constantly till they have reached the final value of 1,100MW by the year 2020.

> See TenneT press release (html)

Illustration based on Google Earth

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Increase of Danish-German cross-border capacity

14.06.2017

The two TSC members Energinet.dk, the Danish transmission system operator (TSO), and the Dutch-German TSO Tennet welcome a joint statement by the Danish Ministry of Energy, Utilities and Climate, the German Ministry for Economic Affairs and Energy, and by the respective national regulatory authorities, the German Federal Network Agency (Bundesnetzagentur), and Energitilsynet from Denmark on cross-border electricity cooperation.

The cooperation’s main objective is to gradually increase the minimum day-ahead capacity in both directions to 1,100MW by the year 2020. The capacity increase is set to reduce the impact of several extensive grid projects in Germany – which are necessary to meet the future European energy demand – on the transmission system in northern Germany. Since the North German transmission network is highly burdened by the high feed-in of regenerative energies, both TSOs have been striving for years to improve cross-border capacities both technically and operationally. Now Energinet.dk and TenneT are working together on a timely implementation of the official regulatory standards.

> See TenneT press release, in German (html)
> See TenneT press release, in English (html; added on 16 June)

Picture: Edited detail from TenneT’s gridmap

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